Developer API · v1

Utilorax Developer API

A free, fast JSON API for everyday developer utilities — hashing, unit conversion, text tools, calculators, web lookups, generators and real file conversion. One key, thousands of calls a month.

10 categories 203 endpoints 500 free calls / month

Get your free API key

Create a free account — one key per account, with usage and plan in your dashboard.

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Free plan: 500 requests per month per key. Without a key you get 10 requests/day to try it out. Allowances reset on the 1st (UTC).

Plans & pricing

Start free. Upgrade any time for a higher monthly allowance — you pay only for the plan, every endpoint stays the same.

Free

500 requests / month

All 203+ endpoints
No card required
Resets monthly (UTC)

Included with any key

Starter

$4.99/mo

5,000 requests / month

≈ $1.00 per 1,000 requests

All 203+ endpoints
Commercial use
Resets monthly (UTC)

Need a custom plan?

Tell us about your project and expected volume — we will get back to you with a tailored quote.

Quick start

Every response is JSON with an "ok" flag and a "result". Try it right now with no key:

curl "https://utilorax.com/api/v1/calc/bmi?weight=70&height=175"

With your key you get the full quota — send it as a header:

curl -H "X-API-Key: YOUR_KEY" \
  "https://utilorax.com/api/v1/convert/length?from=meters&to=feet&value=10"

Prefer to generate a client? The full OpenAPI 3.1 specification describes every endpoint, parameter and response.

Converters

Convert values between units across 14 measurement families — length, weight, temperature, volume, data, speed and more.

GET /api/v1/convert/categories List all unit categories and their units.

curl "https://utilorax.com/api/v1/convert/categories" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

GET /api/v1/convert/{category} Convert a value between two units. Categories: length, weight, temperature, volume, area, speed, data, time, pressure, energy, angle, power, frequency, force.

Parameter	Required	Description
`from`	yes	Source unit slug, e.g. meters
`to`	yes	Target unit slug, e.g. feet
`value`	yes	The number to convert

curl "https://utilorax.com/api/v1/convert/{category}?from=meters&to=feet&value=10" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

from * to * value *

GET /api/v1/convert/currency Convert money between currencies using live exchange rates.

Parameter	Required	Description
`from`	yes	ISO code, e.g. USD
`to`	yes	ISO code, e.g. EUR
`value`	yes	Amount

curl "https://utilorax.com/api/v1/convert/currency?from=USD&to=EUR&value=100" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

from * to * value *

Developer

The everyday developer toolbox: hashing, Base64, URL encoding, JSON tools, CSV to JSON, UUIDs and JWT decoding.

GET /api/v1/dev/hash Hash text with a chosen algorithm.

Parameter	Required	Description
`text`	yes	Text to hash
`algo`	no	md5, sha1, sha256 (default), sha512, sha384, sha224, crc32b, ripemd160

curl "https://utilorax.com/api/v1/dev/hash?text=hello&algo=sha256" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

text * algo

GET /api/v1/dev/hash-all Return MD5, SHA-1, SHA-256, SHA-512 and CRC32 at once.

Parameter	Required	Description
`text`	yes	Text to hash

curl "https://utilorax.com/api/v1/dev/hash-all?text=hello" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/dev/hmac Compute an HMAC signature.

Parameter	Required	Description
`text`	yes	Message
`key`	yes	Secret key
`algo`	no	Algorithm (default sha256)

curl -X POST "https://utilorax.com/api/v1/dev/hmac" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World from Utilorax","key":"secret-key","algo":"sha256"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * key * algo

POST /api/v1/dev/bcrypt Hash a password with bcrypt.

Parameter	Required	Description
`text`	yes	Password
`cost`	no	Cost factor 4-15 (default 10)

curl -X POST "https://utilorax.com/api/v1/dev/bcrypt" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"my-password","cost":"10"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * cost

GET /api/v1/dev/uuid Generate random UUID v4 values.

Parameter	Required	Description
`count`	no	How many (1-100, default 1)

curl "https://utilorax.com/api/v1/dev/uuid?count=3" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

count

POST /api/v1/dev/base64 Encode or decode Base64.

Parameter	Required	Description
`text`	yes	Input
`mode`	no	encode (default) or decode

curl -X POST "https://utilorax.com/api/v1/dev/base64" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World from Utilorax","mode":"encode"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * mode

POST /api/v1/dev/url-encode Percent-encode or decode a URL component.

Parameter	Required	Description
`text`	yes	Input
`mode`	no	encode (default) or decode

curl -X POST "https://utilorax.com/api/v1/dev/url-encode" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"a b&c=d","mode":"encode"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * mode

POST /api/v1/dev/json-validate Check whether a string is valid JSON.

Parameter	Required	Description
`json`	yes	JSON string

curl -X POST "https://utilorax.com/api/v1/dev/json-validate" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"json":"{\"name\":\"Utilorax\",\"free\":true,\"tools\":496}"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

json *

POST /api/v1/dev/json-minify Minify JSON (also validates it).

Parameter	Required	Description
`json`	yes	JSON string

curl -X POST "https://utilorax.com/api/v1/dev/json-minify" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"json":"{\"name\":\"Utilorax\",\"free\":true,\"tools\":496}"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

json *

POST /api/v1/dev/json-format Pretty-print JSON with 2-space indentation.

Parameter	Required	Description
`json`	yes	JSON string

curl -X POST "https://utilorax.com/api/v1/dev/json-format" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"json":"{\"name\":\"Utilorax\",\"free\":true,\"tools\":496}"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

json *

POST /api/v1/dev/json-to-typescript Generate TypeScript interfaces from a JSON sample.

Parameter	Required	Description
`json`	yes	JSON string

curl -X POST "https://utilorax.com/api/v1/dev/json-to-typescript" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"json":"{\"name\":\"Utilorax\",\"free\":true,\"tools\":496}"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

json *

POST /api/v1/dev/csv-to-json Convert CSV text to a JSON array of objects.

Parameter	Required	Description
`csv`	yes	CSV text (first row = header)
`delimiter`	no	Field delimiter (default ,)

curl -X POST "https://utilorax.com/api/v1/dev/csv-to-json" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"csv":"name,city\nAda,London\nAlan,Cambridge","delimiter":","}'

Try it Runs against the live API from your browser. No key needed for a few calls.

csv * delimiter

POST /api/v1/dev/jwt-decode Decode a JWT header and payload (no signature check).

Parameter	Required	Description
`token`	yes	The JWT string

curl -X POST "https://utilorax.com/api/v1/dev/jwt-decode" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"token":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

token *

POST /api/v1/dev/argon2 Hash a password with Argon2id.

Parameter	Required	Description
`text`	yes	Password

curl -X POST "https://utilorax.com/api/v1/dev/argon2" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"my-password"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/dev/password-verify Check a password against a bcrypt/Argon2 hash.

Parameter	Required	Description
`text`	yes	Password
`hash`	yes	The stored hash

curl -X POST "https://utilorax.com/api/v1/dev/password-verify" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"my-password","hash":"$2y$10$N9qo8uLOickgx2ZMRZoMyeIjZAgcfl7p92ldGxad68LJZdL17lhWy"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * hash *

POST /api/v1/dev/ntlm Compute an NTLM hash.

Parameter	Required	Description
`text`	yes	Password

curl -X POST "https://utilorax.com/api/v1/dev/ntlm" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"my-password"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/dev/mysql Compute a MySQL PASSWORD() hash.

Parameter	Required	Description
`text`	yes	Password

curl -X POST "https://utilorax.com/api/v1/dev/mysql" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"my-password"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/dev/markdown-to-html Convert Markdown to HTML.

Parameter	Required	Description
`text`	yes	Markdown

curl -X POST "https://utilorax.com/api/v1/dev/markdown-to-html" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"# Utilorax\n\nA **free** developer API."}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/dev/xml-to-json Convert XML to JSON.

Parameter	Required	Description
`xml`	yes	XML string

curl -X POST "https://utilorax.com/api/v1/dev/xml-to-json" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"xml":"<note><to>Ada</to><body>Hello</body></note>"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

xml *

POST /api/v1/dev/regex-test Test a regular expression against text.

Parameter	Required	Description
`pattern`	yes	Delimited pattern, e.g. /ab+c/i
`text`	yes	Subject text

curl -X POST "https://utilorax.com/api/v1/dev/regex-test" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"pattern":"/[a-z]+@[a-z]+\\.[a-z]{2,}/i","text":"write to [email protected] today"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

pattern * text *

GET /api/v1/dev/color-palette Generate light/dark shades from a colour.

Parameter	Required	Description
`value`	yes	A HEX colour like #4f7cff

curl "https://utilorax.com/api/v1/dev/color-palette?value=%234f7cff" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

value *

Text

Transform and analyse text: change case, slugify, count words, reverse, sort lines, de-duplicate, find and replace.

POST /api/v1/text/case Change text case.

Parameter	Required	Description
`text`	yes	Input
`mode`	no	upper, lower, title, sentence, camel, pascal, snake, kebab

curl -X POST "https://utilorax.com/api/v1/text/case" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World from Utilorax","mode":"upper"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * mode

POST /api/v1/text/slugify Turn text into a clean URL slug.

Parameter	Required	Description
`text`	yes	Input

curl -X POST "https://utilorax.com/api/v1/text/slugify" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World from Utilorax!"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/text/word-count Count words, characters, sentences, lines and reading time.

Parameter	Required	Description
`text`	yes	Input

curl -X POST "https://utilorax.com/api/v1/text/word-count" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World from Utilorax"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/text/reverse Reverse text by characters, words or lines.

Parameter	Required	Description
`text`	yes	Input
`by`	no	characters (default), words or lines

curl -X POST "https://utilorax.com/api/v1/text/reverse" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World from Utilorax","by":"characters"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * by

POST /api/v1/text/sort-lines Sort lines alphabetically.

Parameter	Required	Description
`text`	yes	Input
`order`	no	asc (default) or desc
`case_insensitive`	no	1 to ignore case

curl -X POST "https://utilorax.com/api/v1/text/sort-lines" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"banana\napple\ncherry","order":"asc"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * order case_insensitive

POST /api/v1/text/dedupe Remove duplicate lines.

Parameter	Required	Description
`text`	yes	Input

curl -X POST "https://utilorax.com/api/v1/text/dedupe" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"apple\nbanana\napple\ncherry"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/text/remove-empty Remove blank lines.

Parameter	Required	Description
`text`	yes	Input

curl -X POST "https://utilorax.com/api/v1/text/remove-empty" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"one\n\ntwo\n\n\nthree"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/text/trim Trim leading/trailing whitespace from every line.

Parameter	Required	Description
`text`	yes	Input

curl -X POST "https://utilorax.com/api/v1/text/trim" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"  padded line  \n   another   "}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/text/find-replace Find and replace text.

Parameter	Required	Description
`text`	yes	Input
`find`	yes	Text to find
`replace`	no	Replacement (default empty)

curl -X POST "https://utilorax.com/api/v1/text/find-replace" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World from Utilorax","find":"World","replace":"Everyone"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * find * replace

POST /api/v1/text/extract-emails Extract all email addresses from text.

Parameter	Required	Description
`text`	yes	Input

curl -X POST "https://utilorax.com/api/v1/text/extract-emails" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Contact [email protected] or [email protected] for details."}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/text/extract-urls Extract all URLs from text.

Parameter	Required	Description
`text`	yes	Input

curl -X POST "https://utilorax.com/api/v1/text/extract-urls" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"See https://utilorax.com and https://utilorax.com/api for more."}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/text/strip-html Remove HTML tags, leaving plain text.

Parameter	Required	Description
`text`	yes	HTML input

curl -X POST "https://utilorax.com/api/v1/text/strip-html" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"<p>Hello <strong>World</strong></p>"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/text/add-line-numbers Prefix each line with a number.

Parameter	Required	Description
`text`	yes	Input
`start`	no	Starting number (default 1)

curl -X POST "https://utilorax.com/api/v1/text/add-line-numbers" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"first\nsecond\nthird","start":"1"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * start

POST /api/v1/text/remove-line-breaks Join lines into one, replacing breaks.

Parameter	Required	Description
`text`	yes	Input
`separator`	no	Replacement (default space)

curl -X POST "https://utilorax.com/api/v1/text/remove-line-breaks" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"first\nsecond\nthird","separator":" "}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * separator

POST /api/v1/text/repeat Repeat text N times.

Parameter	Required	Description
`text`	yes	Input
`times`	no	How many (default 2)
`separator`	no	Between copies (default newline)

curl -X POST "https://utilorax.com/api/v1/text/repeat" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Utilorax","times":"3","separator":", "}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * times separator

POST /api/v1/text/count-occurrences Count how many times a substring appears.

Parameter	Required	Description
`text`	yes	Input
`find`	yes	Substring to count

curl -X POST "https://utilorax.com/api/v1/text/count-occurrences" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"the cat sat on the mat with the hat","find":"the"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * find *

POST /api/v1/text/word-frequency Count how often each word appears, most frequent first.

Parameter	Required	Description
`text`	yes	Input
`limit`	no	Top N words (default 50)

curl -X POST "https://utilorax.com/api/v1/text/word-frequency" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"the cat sat on the mat with the hat","limit":"5"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * limit

POST /api/v1/text/unique-words List the distinct words in the text.

Parameter	Required	Description
`text`	yes	Input

curl -X POST "https://utilorax.com/api/v1/text/unique-words" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"the cat sat on the mat with the cat"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

Calculators

Common calculations as clean JSON: BMI, BMR, percentages, tip, discount, VAT, interest, loan payments and age.

GET /api/v1/calc/bmi Body Mass Index from weight and height.

Parameter	Required	Description
`weight`	yes	Weight in kg
`height`	yes	Height in cm

curl "https://utilorax.com/api/v1/calc/bmi?weight=70&height=175" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

weight * height *

GET /api/v1/calc/bmr Basal Metabolic Rate (Mifflin-St Jeor).

Parameter	Required	Description
`weight`	yes	kg
`height`	yes	cm
`age`	yes	years
`gender`	no	male (default) or female

curl "https://utilorax.com/api/v1/calc/bmr?weight=70&height=175&age=30&gender=male" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

weight * height * age * gender

GET /api/v1/calc/percentage What is P% of a value.

Parameter	Required	Description
`percent`	yes	P
`value`	yes	The number

curl "https://utilorax.com/api/v1/calc/percentage?percent=15&value=200" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

percent * value *

GET /api/v1/calc/percentage-of A is what percent of B.

Parameter	Required	Description
`a`	yes	Part
`b`	yes	Whole

curl "https://utilorax.com/api/v1/calc/percentage-of?a=25&b=200" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

a * b *

GET /api/v1/calc/percentage-change Percentage change from one value to another.

Parameter	Required	Description
`from`	yes	Original
`to`	yes	New

curl "https://utilorax.com/api/v1/calc/percentage-change?from=100&to=125" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

from * to *

GET /api/v1/calc/tip Tip and split a bill.

Parameter	Required	Description
`bill`	yes	Bill amount
`tip_percent`	yes	Tip %
`people`	no	Split between N people (default 1)

curl "https://utilorax.com/api/v1/calc/tip?bill=80&tip_percent=15&people=4" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

bill * tip_percent * people

GET /api/v1/calc/discount Sale price after a discount.

Parameter	Required	Description
`price`	yes	Original price
`discount_percent`	yes	Discount %

curl "https://utilorax.com/api/v1/calc/discount?price=120&discount_percent=25" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

price * discount_percent *

GET /api/v1/calc/vat Add or remove VAT / sales tax.

Parameter	Required	Description
`amount`	yes	Amount
`rate`	yes	Tax rate %
`mode`	no	add (default) or remove

curl "https://utilorax.com/api/v1/calc/vat?amount=100&rate=20&mode=add" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

amount * rate * mode

GET /api/v1/calc/simple-interest Simple interest.

Parameter	Required	Description
`principal`	yes	Principal
`rate`	yes	Annual rate %
`years`	yes	Time in years

curl "https://utilorax.com/api/v1/calc/simple-interest?principal=1000&rate=5&years=3" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

principal * rate * years *

GET /api/v1/calc/compound-interest Compound interest.

Parameter	Required	Description
`principal`	yes	Principal
`rate`	yes	Annual rate %
`years`	yes	Years
`compounds_per_year`	no	Compounds/year (default 1)

curl "https://utilorax.com/api/v1/calc/compound-interest?principal=1000&rate=5&years=3&compounds_per_year=12" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

principal * rate * years * compounds_per_year

GET /api/v1/calc/loan Monthly loan payment (EMI).

Parameter	Required	Description
`principal`	yes	Loan amount
`annual_rate`	yes	Annual interest %
`months`	yes	Term in months

curl "https://utilorax.com/api/v1/calc/loan?principal=20000&annual_rate=7.5&months=60" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

principal * annual_rate * months *

GET /api/v1/calc/age Age from a birthdate.

Parameter	Required	Description
`birthdate`	yes	YYYY-MM-DD
`at`	no	Date to measure at (default today)

curl "https://utilorax.com/api/v1/calc/age?birthdate=1996-05-20" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

birthdate * at

GET /api/v1/calc/average Mean, median, min, max and sum of numbers.

Parameter	Required	Description
`numbers`	yes	Comma or space separated numbers

curl "https://utilorax.com/api/v1/calc/average?numbers=4,8,15,16,23,42" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

numbers *

GET /api/v1/calc/standard-deviation Mean, variance and standard deviation — both the population and the sample figure, because "standard deviation" alone is ambiguous.

Parameter	Required	Description
`numbers`	yes	Comma or space separated numbers (at least two)

curl "https://utilorax.com/api/v1/calc/standard-deviation?numbers=2,4,4,4,5,5,7,9" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

numbers *

GET /api/v1/calc/quadratic Solve ax² + bx + c = 0 — real or complex roots, discriminant and vertex.

Parameter	Required	Description
`a`	yes	Coefficient of x² (cannot be 0)
`b`	yes	Coefficient of x
`c`	yes	Constant term

curl "https://utilorax.com/api/v1/calc/quadratic?a=1&b=-3&c=2" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

a * b * c *

GET /api/v1/calc/tdee Daily calorie burn (TDEE) from Mifflin-St Jeor BMR and an activity level.

Parameter	Required	Description
`weight`	yes	Weight in kg
`height`	yes	Height in cm
`age`	yes	Age in years
`gender`	no	male (default) or female
`activity`	no	sedentary, light, moderate (default), active or very-active

curl "https://utilorax.com/api/v1/calc/tdee?weight=70&height=175&age=30&gender=male&activity=moderate" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

weight * height * age * gender activity

GET /api/v1/calc/ideal-weight Ideal body weight by the Devine, Robinson and Miller formulas — all three, since they disagree.

Parameter	Required	Description
`height`	yes	Height in cm
`gender`	no	male (default) or female

curl "https://utilorax.com/api/v1/calc/ideal-weight?height=180&gender=male" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

height * gender

GET /api/v1/calc/body-fat Body fat percentage by the US Navy circumference method.

Parameter	Required	Description
`height`	yes	Height in cm
`neck`	yes	Neck circumference in cm
`waist`	yes	Waist circumference in cm
`hip`	no	Hip circumference in cm — required for female
`gender`	no	male (default) or female

curl "https://utilorax.com/api/v1/calc/body-fat?height=180&neck=38&waist=85&gender=male" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

height * neck * waist * hip gender

GET /api/v1/calc/future-value What a lump sum plus monthly deposits grows into, with the interest earned split out.

Parameter	Required	Description
`rate`	yes	Annual interest rate as a percentage
`years`	yes	How many years
`present_value`	no	Starting amount (default 0)
`monthly`	no	Monthly deposit (default 0)

curl "https://utilorax.com/api/v1/calc/future-value?present_value=1000&monthly=100&rate=6&years=10" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

rate * years * present_value monthly

GET /api/v1/calc/roi Return on investment, plus the annualised rate when you pass years.

Parameter	Required	Description
`cost`	yes	What it cost
`return`	yes	What it returned
`years`	no	Holding period, for the annualised figure

curl "https://utilorax.com/api/v1/calc/roi?cost=1000&return=1500&years=3" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

cost * return * years

GET /api/v1/calc/margin Profit, margin and markup from a cost and a selling price — margin and markup are not the same number.

Parameter	Required	Description
`cost`	yes	Cost price
`price`	yes	Selling price

curl "https://utilorax.com/api/v1/calc/margin?cost=60&price=100" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

cost * price *

GET /api/v1/calc/salary Convert between hourly and annual pay, with the daily, weekly and monthly figures.

Parameter	Required	Description
`hourly`	no	Hourly rate — pass this or annual
`annual`	no	Annual salary — pass this or hourly
`hours_per_week`	no	Default 40
`weeks_per_year`	no	Default 52

curl "https://utilorax.com/api/v1/calc/salary?hourly=25" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

hourly annual hours_per_week weeks_per_year

GET /api/v1/calc/fuel-cost Fuel used and what a trip costs. Unit-agnostic: km with km/l, or miles with mpg.

Parameter	Required	Description
`distance`	yes	Trip distance
`efficiency`	yes	Distance per unit of fuel
`price`	yes	Price per unit of fuel

curl "https://utilorax.com/api/v1/calc/fuel-cost?distance=300&efficiency=15&price=250" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

distance * efficiency * price *

GET /api/v1/calc/speed Solve for whichever of speed, distance or time you leave out — pass any two.

Parameter	Required	Description
`distance`	no	Distance
`time`	no	Time
`speed`	no	Speed

curl "https://utilorax.com/api/v1/calc/speed?distance=120&time=2" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

distance time speed

GET /api/v1/calc/pace Running pace per km or mile, formatted, plus speed per hour.

Parameter	Required	Description
`distance`	yes	Distance covered
`minutes`	yes	Time taken, in minutes

curl "https://utilorax.com/api/v1/calc/pace?distance=10&minutes=50" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

distance * minutes *

GET /api/v1/calc/mortgage Monthly mortgage payment from price, deposit, rate and term.

Parameter	Required	Description
`price`	yes	Property price
`down_payment`	no	Deposit (default 0)
`rate`	yes	Annual interest rate %
`years`	yes	Term in years

curl "https://utilorax.com/api/v1/calc/mortgage?price=300000&down_payment=60000&rate=6&years=30" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

price * down_payment rate * years *

GET /api/v1/calc/cagr Compound annual growth rate between two values.

Parameter	Required	Description
`start`	yes	Starting value
`end`	yes	Ending value
`years`	yes	Number of years

curl "https://utilorax.com/api/v1/calc/cagr?start=1000&end=2000&years=5" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

start * end * years *

GET /api/v1/calc/savings-goal Monthly deposit needed to reach a savings target.

Parameter	Required	Description
`goal`	yes	Target amount
`rate`	yes	Annual interest rate %
`months`	yes	Months to save

curl "https://utilorax.com/api/v1/calc/savings-goal?goal=10000&rate=6&months=24" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

goal * rate * months *

GET /api/v1/calc/sip Future value of a fixed monthly investment.

Parameter	Required	Description
`monthly`	yes	Monthly contribution
`rate`	yes	Expected annual return %
`years`	yes	Years invested

curl "https://utilorax.com/api/v1/calc/sip?monthly=5000&rate=12&years=10" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

monthly * rate * years *

GET /api/v1/calc/inflation What an amount will cost after inflation.

Parameter	Required	Description
`amount`	yes	Amount today
`rate`	yes	Annual inflation %
`years`	yes	Years ahead

curl "https://utilorax.com/api/v1/calc/inflation?amount=1000&rate=5&years=10" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

amount * rate * years *

GET /api/v1/calc/break-even Units needed to cover fixed costs.

Parameter	Required	Description
`fixed_costs`	yes	Total fixed costs
`price`	yes	Price per unit
`variable_cost`	yes	Variable cost per unit

curl "https://utilorax.com/api/v1/calc/break-even?fixed_costs=10000&price=50&variable_cost=30" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

fixed_costs * price * variable_cost *

GET /api/v1/calc/markup Selling price and margin from cost plus a markup.

Parameter	Required	Description
`cost`	yes	Unit cost
`markup_percent`	yes	Markup %

curl "https://utilorax.com/api/v1/calc/markup?cost=100&markup_percent=50" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

cost * markup_percent *

GET /api/v1/calc/rule-of-72 Years for money to double, triple or quadruple.

Parameter	Required	Description
`rate`	yes	Annual return %

curl "https://utilorax.com/api/v1/calc/rule-of-72?rate=8" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

rate *

GET /api/v1/calc/apy Annual percentage yield from a nominal rate.

Parameter	Required	Description
`rate`	yes	Nominal annual rate %
`compounds_per_year`	no	Compounding periods (default 12)

curl "https://utilorax.com/api/v1/calc/apy?rate=5&compounds_per_year=12" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

rate * compounds_per_year

GET /api/v1/calc/cd Maturity value of a fixed deposit.

Parameter	Required	Description
`principal`	yes	Deposit amount
`rate`	yes	Annual rate %
`years`	yes	Term in years
`compounds_per_year`	no	Compounding periods (default 12)

curl "https://utilorax.com/api/v1/calc/cd?principal=10000&rate=4&years=5&compounds_per_year=4" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

principal * rate * years * compounds_per_year

GET /api/v1/calc/cpm Cost per thousand impressions.

Parameter	Required	Description
`cost`	yes	Total spend
`impressions`	yes	Impressions delivered

curl "https://utilorax.com/api/v1/calc/cpm?cost=500&impressions=250000" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

cost * impressions *

GET /api/v1/calc/gst Add or remove GST from an amount.

Parameter	Required	Description
`amount`	yes	Amount
`rate`	yes	GST rate %
`mode`	no	add or remove (default add)

curl "https://utilorax.com/api/v1/calc/gst?amount=1000&rate=18&mode=add" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

amount * rate * mode

GET /api/v1/calc/sales-tax Add or remove sales tax from an amount.

Parameter	Required	Description
`amount`	yes	Amount
`rate`	yes	Tax rate %
`mode`	no	add or remove (default add)

curl "https://utilorax.com/api/v1/calc/sales-tax?amount=200&rate=7.5&mode=add" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

amount * rate * mode

GET /api/v1/calc/debt-to-income Debt-to-income ratio and how lenders read it.

Parameter	Required	Description
`monthly_debt`	yes	Total monthly debt payments
`monthly_income`	yes	Gross monthly income

curl "https://utilorax.com/api/v1/calc/debt-to-income?monthly_debt=1500&monthly_income=5000" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

monthly_debt * monthly_income *

GET /api/v1/calc/down-payment Deposit amount and the loan left over.

Parameter	Required	Description
`price`	yes	Purchase price
`percent`	yes	Deposit %

curl "https://utilorax.com/api/v1/calc/down-payment?price=250000&percent=20" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

price * percent *

GET /api/v1/calc/property-tax Annual and monthly property tax.

Parameter	Required	Description
`assessed_value`	yes	Assessed value
`rate`	yes	Tax rate %

curl "https://utilorax.com/api/v1/calc/property-tax?assessed_value=300000&rate=1.2" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

assessed_value * rate *

GET /api/v1/calc/overtime-pay Regular plus overtime pay for a period.

Parameter	Required	Description
`hourly_rate`	yes	Base hourly rate
`regular_hours`	yes	Regular hours
`overtime_hours`	no	Overtime hours (default 0)
`multiplier`	no	Overtime multiplier (default 1.5)

curl "https://utilorax.com/api/v1/calc/overtime-pay?hourly_rate=20&regular_hours=40&overtime_hours=10" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

hourly_rate * regular_hours * overtime_hours multiplier

GET /api/v1/calc/take-home-pay Net pay after tax and deductions.

Parameter	Required	Description
`gross`	yes	Gross pay
`tax_rate`	yes	Tax rate %
`deductions`	no	Other deductions (default 0)

curl "https://utilorax.com/api/v1/calc/take-home-pay?gross=5000&tax_rate=25&deductions=200" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

gross * tax_rate * deductions

GET /api/v1/calc/payment-fee Processor fee and what you actually receive.

Parameter	Required	Description
`amount`	yes	Transaction amount
`rate_percent`	no	Percentage fee (default 2.9)
`fixed_fee`	no	Fixed fee (default 0.30)

curl "https://utilorax.com/api/v1/calc/payment-fee?amount=100&rate_percent=2.9&fixed_fee=0.30" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

amount * rate_percent fixed_fee

GET /api/v1/calc/net-worth Assets minus liabilities, with a debt ratio.

Parameter	Required	Description
`assets`	yes	Total assets
`liabilities`	yes	Total liabilities

curl "https://utilorax.com/api/v1/calc/net-worth?assets=500000&liabilities=150000" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

assets * liabilities *

GET /api/v1/calc/capital-gains-tax Gain and tax on a disposal.

Parameter	Required	Description
`sale_price`	yes	Sale price
`purchase_price`	yes	Purchase price
`fees`	no	Costs of sale (default 0)
`rate`	yes	Tax rate %

curl "https://utilorax.com/api/v1/calc/capital-gains-tax?sale_price=50000&purchase_price=30000&fees=1000&rate=15" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

sale_price * purchase_price * fees rate *

GET /api/v1/calc/refinance How long until refinancing pays for itself.

Parameter	Required	Description
`closing_costs`	yes	Closing costs
`monthly_saving`	yes	Monthly saving after refinancing

curl "https://utilorax.com/api/v1/calc/refinance?closing_costs=4800&monthly_saving=200" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

closing_costs * monthly_saving *

GET /api/v1/calc/adsense Estimated ad earnings and RPM.

Parameter	Required	Description
`pageviews`	yes	Monthly pageviews
`ctr`	yes	Click-through rate %
`cpc`	yes	Cost per click

curl "https://utilorax.com/api/v1/calc/adsense?pageviews=100000&ctr=1.5&cpc=0.40" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

pageviews * ctr * cpc *

Web & SEO

Inspect any URL or domain: HTTP status, headers, meta tags, Open Graph, DNS records, IP, page size and more.

GET /api/v1/web/http-status HTTP status code and redirect chain for a URL.

Parameter	Required	Description
`url`	yes	The URL

curl "https://utilorax.com/api/v1/web/http-status?url=https://example.com" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

url *

GET /api/v1/web/http-headers Response headers for a URL.

Parameter	Required	Description
`url`	yes	The URL

curl "https://utilorax.com/api/v1/web/http-headers?url=https://example.com" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

url *

GET /api/v1/web/meta-tags Title, description and meta tags of a page.

Parameter	Required	Description
`url`	yes	The URL

curl "https://utilorax.com/api/v1/web/meta-tags?url=https://example.com" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

url *

GET /api/v1/web/open-graph Open Graph tags of a page.

Parameter	Required	Description
`url`	yes	The URL

curl "https://utilorax.com/api/v1/web/open-graph?url=https://example.com" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

url *

GET /api/v1/web/dns DNS records for a domain.

Parameter	Required	Description
`domain`	yes	The domain

curl "https://utilorax.com/api/v1/web/dns?domain=example.com" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

domain *

GET /api/v1/web/ip Resolve a domain to its IP address.

Parameter	Required	Description
`domain`	yes	The domain

curl "https://utilorax.com/api/v1/web/ip?domain=example.com" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

domain *

GET /api/v1/web/page-size Download size of a page.

Parameter	Required	Description
`url`	yes	The URL

curl "https://utilorax.com/api/v1/web/page-size?url=https://example.com" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

url *

GET /api/v1/web/wordpress Detect whether a site runs WordPress.

Parameter	Required	Description
`url`	yes	The URL

curl "https://utilorax.com/api/v1/web/wordpress?url=https://example.com" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

url *

GET /api/v1/web/youtube Title, channel and thumbnail of a YouTube video.

Parameter	Required	Description
`url`	yes	Video URL or ID

curl "https://utilorax.com/api/v1/web/youtube?url=dQw4w9WgXcQ" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

url *

Generators

Generate useful things on demand: strong passwords, UUIDs, lorem ipsum, colours, random numbers, QR codes and barcodes.

GET /api/v1/generate/password Generate a strong random password.

Parameter	Required	Description
`length`	no	4-128 (default 16)
`upper`	no	0 to exclude uppercase
`numbers`	no	0 to exclude digits
`symbols`	no	0 to exclude symbols

curl "https://utilorax.com/api/v1/generate/password?length=20" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

length upper numbers symbols

GET /api/v1/generate/uuid Generate UUID v4 values.

Parameter	Required	Description
`count`	no	1-100 (default 1)

curl "https://utilorax.com/api/v1/generate/uuid?count=5" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

count

GET /api/v1/generate/lorem Generate lorem ipsum placeholder text.

Parameter	Required	Description
`paragraphs`	no	1-20 (default 3)

curl "https://utilorax.com/api/v1/generate/lorem?paragraphs=2" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

paragraphs

GET /api/v1/generate/color Convert a colour between HEX and RGB.

Parameter	Required	Description
`value`	yes	A HEX like #4f7cff or RGB like 79,124,255

curl "https://utilorax.com/api/v1/generate/color?value=%234f7cff" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

value *

GET /api/v1/generate/random-number Generate random numbers in a range.

Parameter	Required	Description
`min`	no	Minimum (default 1)
`max`	no	Maximum (default 100)
`count`	no	How many (default 1)

curl "https://utilorax.com/api/v1/generate/random-number?min=1&max=6&count=2" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

min max count

GET /api/v1/generate/qr Build a QR-code image URL for any text.

Parameter	Required	Description
`text`	yes	The text or URL
`size`	no	Pixels 64-1000 (default 300)

curl "https://utilorax.com/api/v1/generate/qr?text=https://utilorax.com" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

text * size

GET /api/v1/generate/barcode Build a barcode image URL.

Parameter	Required	Description
`text`	yes	The value
`type`	no	code128 (default), ean13, upc, code39…

curl "https://utilorax.com/api/v1/generate/barcode?text=012345678905&type=code128" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

text * type

GET /api/v1/generate/random-string Generate a random string.

Parameter	Required	Description
`length`	no	1-512 (default 32)
`charset`	no	alphanumeric (default), alpha, numeric, hex

curl "https://utilorax.com/api/v1/generate/random-string?length=24" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

length charset

GET /api/v1/generate/token Generate a secure hex token.

Parameter	Required	Description
`bytes`	no	Entropy bytes 8-128 (default 32)

curl "https://utilorax.com/api/v1/generate/token?bytes=32" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

bytes

GET /api/v1/generate/hsl Convert a HEX colour to HSL.

Parameter	Required	Description
`value`	yes	A HEX colour like #4f7cff

curl "https://utilorax.com/api/v1/generate/hsl?value=%234f7cff" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

value *

GET /api/v1/generate/gradient Build a CSS linear-gradient.

Parameter	Required	Description
`from`	no	Start HEX (default 4f7cff)
`to`	no	End HEX (default 7c5cff)
`angle`	no	Degrees (default 90)

curl "https://utilorax.com/api/v1/generate/gradient?from=4f7cff&to=12b886" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

from to angle

GET /api/v1/generate/mac-address Generate a random MAC address.

Parameter	Required	Description
`separator`	no	: (default) or -

curl "https://utilorax.com/api/v1/generate/mac-address" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

separator

Encoding

Encode and decode between formats: hexadecimal, binary, Morse code, ROT13, HTML entities and Unicode escapes.

POST /api/v1/encode/hex Encode or decode hexadecimal.

Parameter	Required	Description
`text`	yes	Input
`mode`	no	encode (default) or decode

curl -X POST "https://utilorax.com/api/v1/encode/hex" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World from Utilorax","mode":"encode"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * mode

POST /api/v1/encode/binary Encode or decode binary (8-bit).

Parameter	Required	Description
`text`	yes	Input
`mode`	no	encode (default) or decode

curl -X POST "https://utilorax.com/api/v1/encode/binary" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hi","mode":"encode"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * mode

POST /api/v1/encode/rot13 Apply the ROT13 cipher.

Parameter	Required	Description
`text`	yes	Input

curl -X POST "https://utilorax.com/api/v1/encode/rot13" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World from Utilorax"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

POST /api/v1/encode/morse Encode or decode Morse code.

Parameter	Required	Description
`text`	yes	Input
`mode`	no	encode (default) or decode

curl -X POST "https://utilorax.com/api/v1/encode/morse" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"SOS","mode":"encode"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * mode

POST /api/v1/encode/html-entities Encode or decode HTML entities.

Parameter	Required	Description
`text`	yes	Input
`mode`	no	encode (default) or decode

curl -X POST "https://utilorax.com/api/v1/encode/html-entities" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"<a href=\"x\">Tom & Jerry</a>","mode":"encode"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * mode

POST /api/v1/encode/unicode-escape Encode or decode \uXXXX Unicode escapes.

Parameter	Required	Description
`text`	yes	Input
`mode`	no	encode (default) or decode

curl -X POST "https://utilorax.com/api/v1/encode/unicode-escape" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"café ☕","mode":"encode"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * mode

POST /api/v1/encode/base32 Encode or decode Base32 (RFC 4648).

Parameter	Required	Description
`text`	yes	Input
`mode`	no	encode (default) or decode

curl -X POST "https://utilorax.com/api/v1/encode/base32" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Hello World from Utilorax","mode":"encode"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text * mode

POST /api/v1/encode/url-parse Break a URL into its parts (scheme, host, path, query…).

Parameter	Required	Description
`text`	yes	The URL

curl -X POST "https://utilorax.com/api/v1/encode/url-parse" \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"https://utilorax.com/api/v1/calc/bmi?weight=70&height=175#result"}'

Try it Runs against the live API from your browser. No key needed for a few calls.

text *

Date & Time

Work with dates and times: Unix timestamps, timezone conversion, date differences, adding intervals and week numbers.

GET /api/v1/datetime/now Current time as Unix, ISO and UTC.

curl "https://utilorax.com/api/v1/datetime/now" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

GET /api/v1/datetime/to-timestamp Convert a date string to a Unix timestamp.

Parameter	Required	Description
`date`	yes	Any date string, e.g. 2026-07-21

curl "https://utilorax.com/api/v1/datetime/to-timestamp?date=2026-07-21" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

date *

GET /api/v1/datetime/from-timestamp Convert a Unix timestamp to a date.

Parameter	Required	Description
`timestamp`	yes	Unix seconds
`timezone`	no	e.g. Europe/London (default UTC)

curl "https://utilorax.com/api/v1/datetime/from-timestamp?timestamp=1784200000" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

timestamp * timezone

GET /api/v1/datetime/timezone Convert a time between timezones.

Parameter	Required	Description
`date`	no	Date/time (default now)
`from`	yes	e.g. UTC
`to`	yes	e.g. Asia/Karachi

curl "https://utilorax.com/api/v1/datetime/timezone?from=UTC&to=Asia/Karachi" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

date from * to *

GET /api/v1/datetime/diff Difference between two dates.

Parameter	Required	Description
`from`	yes	Start date
`to`	yes	End date

curl "https://utilorax.com/api/v1/datetime/diff?from=2026-01-01&to=2026-07-21" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

from * to *

GET /api/v1/datetime/add Add or subtract an interval from a date.

Parameter	Required	Description
`date`	no	Base date (default now)
`add`	yes	e.g. "5 days", "-2 months"

curl "https://utilorax.com/api/v1/datetime/add?date=2026-07-21&add=10%20days" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

date add *

GET /api/v1/datetime/week-number ISO week number for a date.

Parameter	Required	Description
`date`	no	Date (default today)

curl "https://utilorax.com/api/v1/datetime/week-number?date=2026-07-21" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

date

GET /api/v1/datetime/is-leap-year Whether a year is a leap year.

Parameter	Required	Description
`year`	yes	The year

curl "https://utilorax.com/api/v1/datetime/is-leap-year?year=2028" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

year *

GET /api/v1/datetime/days-in-month Number of days in a month.

Parameter	Required	Description
`year`	yes	Year
`month`	yes	Month 1-12

curl "https://utilorax.com/api/v1/datetime/days-in-month?year=2026&month=2" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

year * month *

GET /api/v1/datetime/day-of-week The weekday for a date.

Parameter	Required	Description
`date`	yes	The date

curl "https://utilorax.com/api/v1/datetime/day-of-week?date=2026-07-21" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

date *

Numbers

Convert numbers between bases (binary, octal, decimal, hex), to and from Roman numerals, and into words.

GET /api/v1/number/base-convert Convert a number between bases (2-36).

Parameter	Required	Description
`value`	yes	The number
`from`	yes	From base, e.g. 10
`to`	yes	To base, e.g. 2

curl "https://utilorax.com/api/v1/number/base-convert?value=255&from=10&to=16" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

value * from * to *

GET /api/v1/number/roman Convert to or from Roman numerals.

Parameter	Required	Description
`value`	yes	A number (1-3999) or a Roman numeral
`mode`	no	to-roman (default) or from-roman

curl "https://utilorax.com/api/v1/number/roman?value=2026" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

value * mode

GET /api/v1/number/to-words Spell a number out in English words.

Parameter	Required	Description
`value`	yes	The number

curl "https://utilorax.com/api/v1/number/to-words?value=1234" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

value *

GET /api/v1/number/factorial Factorial of a number (0-170).

Parameter	Required	Description
`value`	yes	Integer 0-170

curl "https://utilorax.com/api/v1/number/factorial?value=10" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

value *

GET /api/v1/number/fibonacci First N Fibonacci numbers.

Parameter	Required	Description
`value`	yes	How many (1-1000)

curl "https://utilorax.com/api/v1/number/fibonacci?value=12" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

value *

GET /api/v1/number/is-prime Check whether a number is prime.

Parameter	Required	Description
`value`	yes	The number

curl "https://utilorax.com/api/v1/number/is-prime?value=97" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

value *

GET /api/v1/number/gcd-lcm Greatest common divisor and least common multiple.

Parameter	Required	Description
`a`	yes	First number
`b`	yes	Second number

curl "https://utilorax.com/api/v1/number/gcd-lcm?a=12&b=18" \
  -H "X-API-Key: YOUR_KEY"

Try it Runs against the live API from your browser. No key needed for a few calls.

a * b *

Documents & Media

Convert and process real files with a multipart upload — PDF, images, spreadsheets and Word. Send a POST with files[] and get the converted file back.

Send a multipart POST with one or more files in the files[] field (and any tool options as form fields). The converted file streams straight back. 20 MB per file.

Images 42

POST /api/v1/file/image-info Read an image’s dimensions, format and EXIF (returns JSON).

curl -X POST "https://utilorax.com/api/v1/file/image-info" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/image-resize Resize to exact dimensions.

curl -X POST "https://utilorax.com/api/v1/file/image-resize" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \  -F "width=1080" \  -F "height=1080" \  -F "fit=pad" \  -F "background=white" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File * width height fit background format quality

POST /api/v1/file/image-crop Cut a rectangle out of an image.

curl -X POST "https://utilorax.com/api/v1/file/image-crop" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \  -F "x=0" \  -F "y=0" \  -F "width=400" \  -F "height=400" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File * x y width height format quality

POST /api/v1/file/image-rotate Rotate by any angle.

curl -X POST "https://utilorax.com/api/v1/file/image-rotate" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \  -F "degrees=90" \  -F "background=white" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File * degrees background format quality

POST /api/v1/file/image-flip Mirror an image.

curl -X POST "https://utilorax.com/api/v1/file/image-flip" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \  -F "direction=horizontal" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File * direction format quality

POST /api/v1/file/image-thumbnail Square thumbnail, cropped to fill.

curl -X POST "https://utilorax.com/api/v1/file/image-thumbnail" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \  -F "size=256" \  -F "square=1" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File * size square format quality

POST /api/v1/file/image-grayscale Convert to greyscale.

curl -X POST "https://utilorax.com/api/v1/file/image-grayscale" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File * format quality

POST /api/v1/file/image-blur Gaussian blur.

curl -X POST "https://utilorax.com/api/v1/file/image-blur" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \  -F "sigma=3" \  -F "radius=0" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File * sigma radius format quality

POST /api/v1/file/image-strip Remove EXIF, GPS and colour profiles.

curl -X POST "https://utilorax.com/api/v1/file/image-strip" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File * format quality

POST /api/v1/file/heic-to-jpg HEIC to JPG

Convert iPhone HEIC photos into universal JPG images.

curl -X POST "https://utilorax.com/api/v1/file/heic-to-jpg" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/jpg-to-png JPG to PNG

Convert JPG images to lossless PNG format.

curl -X POST "https://utilorax.com/api/v1/file/jpg-to-png" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/png-to-jpg PNG to JPG

Convert PNG images to smaller JPG files.

curl -X POST "https://utilorax.com/api/v1/file/png-to-jpg" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/webp-to-jpg WebP to JPG

Convert WebP images into universal JPG files.

curl -X POST "https://utilorax.com/api/v1/file/webp-to-jpg" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/image-to-webp Image to WebP

Convert JPG and PNG images to lightweight WebP for faster sites.

curl -X POST "https://utilorax.com/api/v1/file/image-to-webp" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/compress-image Compress Image

Shrink JPG, PNG and WebP images to a smaller file size.

curl -X POST "https://utilorax.com/api/v1/file/compress-image" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/compress-jpg Compress JPG

Make JPG images smaller while keeping good quality — you control the amount.

curl -X POST "https://utilorax.com/api/v1/file/compress-jpg" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/compress-png Compress PNG

Make PNG images smaller while keeping good quality — you control the amount.

curl -X POST "https://utilorax.com/api/v1/file/compress-png" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/compress-webp Compress WebP

Make WebP images smaller while keeping good quality — you control the amount.

curl -X POST "https://utilorax.com/api/v1/file/compress-webp" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/favicon-generator Favicon Generator

Turn any image into a complete favicon package — favicon.ico, every PNG size, Apple touch icons and a web manifest.

curl -X POST "https://utilorax.com/api/v1/file/favicon-generator" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/image-converter Image Converter

Convert images between PNG, JPG, WebP, AVIF, GIF, BMP, TIFF and more — you pick the output format.

curl -X POST "https://utilorax.com/api/v1/file/image-converter" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/webp-to-png WebP to PNG

Convert WebP images to PNG, keeping full transparency.

curl -X POST "https://utilorax.com/api/v1/file/webp-to-png" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/png-to-webp PNG to WebP

Convert PNG images to smaller WebP files, keeping transparency.

curl -X POST "https://utilorax.com/api/v1/file/png-to-webp" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/jpg-to-webp JPG to WebP

Convert JPG photos to smaller WebP files for the web.

curl -X POST "https://utilorax.com/api/v1/file/jpg-to-webp" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/ico-to-png ICO to PNG

Convert an .ico favicon to a PNG, taking its largest image.

curl -X POST "https://utilorax.com/api/v1/file/ico-to-png" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/avif-to-jpg AVIF to JPG

Convert AVIF images to JPG online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/avif-to-jpg" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/avif-to-png AVIF to PNG

Convert AVIF images to PNG online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/avif-to-png" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/avif-to-webp AVIF to WebP

Convert AVIF images to WebP online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/avif-to-webp" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/png-to-avif PNG to AVIF

Convert PNG images to AVIF online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/png-to-avif" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/jpg-to-avif JPG to AVIF

Convert JPG images to AVIF online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/jpg-to-avif" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/webp-to-avif WebP to AVIF

Convert WebP images to AVIF online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/webp-to-avif" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/heic-to-png HEIC to PNG

Convert HEIC images to PNG online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/heic-to-png" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/heic-to-webp HEIC to WebP

Convert HEIC images to WebP online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/heic-to-webp" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/gif-to-png GIF to PNG

Convert GIF images to PNG online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/gif-to-png" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/gif-to-jpg GIF to JPG

Convert GIF images to JPG online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/gif-to-jpg" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/bmp-to-jpg BMP to JPG

Convert BMP images to JPG online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/bmp-to-jpg" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/bmp-to-png BMP to PNG

Convert BMP images to PNG online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/bmp-to-png" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/tiff-to-jpg TIFF to JPG

Convert TIFF images to JPG online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/tiff-to-jpg" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/tiff-to-png TIFF to PNG

Convert TIFF images to PNG online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/tiff-to-png" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/png-to-tiff PNG to TIFF

Convert PNG images to TIFF online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/png-to-tiff" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/jpg-to-tiff JPG to TIFF

Convert JPG images to TIFF online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/jpg-to-tiff" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/png-to-bmp PNG to BMP

Convert PNG images to BMP online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/png-to-bmp" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/jpg-to-bmp JPG to BMP

Convert JPG images to BMP online, free. Batch supported.

curl -X POST "https://utilorax.com/api/v1/file/jpg-to-bmp" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

PDF 20

POST /api/v1/file/merge-pdf Merge PDF

Combine several PDF files into one document.

curl -X POST "https://utilorax.com/api/v1/file/merge-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/jpg-to-pdf JPG to PDF

Turn your JPG or PNG images into a single PDF.

curl -X POST "https://utilorax.com/api/v1/file/jpg-to-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/compress-pdf Compress PDF

Reduce a PDF’s file size while keeping it readable.

curl -X POST "https://utilorax.com/api/v1/file/compress-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/split-pdf Split PDF

Split a PDF into separate files — every page, or custom ranges.

curl -X POST "https://utilorax.com/api/v1/file/split-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/pdf-to-jpg PDF to JPG

Convert each page of a PDF into a JPG image.

curl -X POST "https://utilorax.com/api/v1/file/pdf-to-jpg" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/protect-pdf Protect PDF

Add a password so only the right people can open your PDF.

curl -X POST "https://utilorax.com/api/v1/file/protect-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/unlock-pdf Unlock PDF

Remove the password and restrictions from a PDF you own.

curl -X POST "https://utilorax.com/api/v1/file/unlock-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/pdf-to-png PDF to PNG

Convert each page of a PDF into a lossless PNG image.

curl -X POST "https://utilorax.com/api/v1/file/pdf-to-png" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/sign-pdf Sign PDF

Draw your signature and stamp it onto your PDF.

curl -X POST "https://utilorax.com/api/v1/file/sign-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/rotate-pdf Rotate PDF

Rotate every page of a PDF to the correct orientation.

curl -X POST "https://utilorax.com/api/v1/file/rotate-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/remove-pages Remove Pages

Delete specific pages or ranges from a PDF.

curl -X POST "https://utilorax.com/api/v1/file/remove-pages" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/extract-pages Extract Pages

Pull specific pages or ranges out into a new PDF.

curl -X POST "https://utilorax.com/api/v1/file/extract-pages" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/add-page-numbers Add Page Numbers

Stamp page numbers onto every page of a PDF.

curl -X POST "https://utilorax.com/api/v1/file/add-page-numbers" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/watermark-pdf Watermark PDF

Stamp a diagonal text watermark across every page.

curl -X POST "https://utilorax.com/api/v1/file/watermark-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/repair-pdf Repair PDF

Rebuild a corrupt or damaged PDF so it opens again.

curl -X POST "https://utilorax.com/api/v1/file/repair-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/html-to-pdf HTML to PDF

Paste HTML and download a clean, print-ready PDF — styling, tables and images included.

curl -X POST "https://utilorax.com/api/v1/file/html-to-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "text=Your text here" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

text *

POST /api/v1/file/markdown-to-pdf Markdown to PDF

Paste Markdown and download a beautifully formatted PDF — headings, lists, tables and code included.

curl -X POST "https://utilorax.com/api/v1/file/markdown-to-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "text=Your text here" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

text *

POST /api/v1/file/text-to-pdf Text to PDF

Paste plain text and download a clean PDF that keeps your line breaks and spacing.

curl -X POST "https://utilorax.com/api/v1/file/text-to-pdf" \
  -H "X-API-Key: YOUR_KEY" \
  -F "text=Your text here" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

text *

POST /api/v1/file/pdf-to-text PDF to Text

Pull the text out of a PDF and download it as a clean .txt file.

curl -X POST "https://utilorax.com/api/v1/file/pdf-to-text" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/pdf-to-markdown PDF to Markdown

Extract a PDF's text as clean Markdown, with headings and lists preserved.

curl -X POST "https://utilorax.com/api/v1/file/pdf-to-markdown" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

Spreadsheets 3

POST /api/v1/file/csv-to-excel CSV to Excel

Convert a CSV file into a proper Excel (.xlsx) workbook.

curl -X POST "https://utilorax.com/api/v1/file/csv-to-excel" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/excel-to-csv Excel to CSV

Convert an Excel workbook into a plain CSV file.

curl -X POST "https://utilorax.com/api/v1/file/excel-to-csv" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

POST /api/v1/file/excel-to-json Excel to JSON

Turn a spreadsheet into structured JSON (first row as keys).

curl -X POST "https://utilorax.com/api/v1/file/excel-to-json" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[][email protected]" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

Documents 1

POST /api/v1/file/text-to-word Text to Word

Paste text and download a ready-to-edit Word (.docx) file.

curl -X POST "https://utilorax.com/api/v1/file/text-to-word" \
  -H "X-API-Key: YOUR_KEY" \
  -F "text=Your text here" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

text *

Archives 1

POST /api/v1/file/zip-create Bundle any uploaded files into one archive.

curl -X POST "https://utilorax.com/api/v1/file/zip-create" \
  -H "X-API-Key: YOUR_KEY" \
  -F "files[]=@your-file" \
  -o result

Try it Runs against the live API. The result downloads, or shows below if it is JSON.

File *

Tip: GET /api/v1 returns the full endpoint list as JSON, so you can discover the API programmatically.