Whirlpool Hash Generator
Turn any text into its 128-character Whirlpool hash instantly.
How to use the Whirlpool Hash Generator
- Type or paste your text in the box.
- The Whirlpool hash appears as you type.
- Click Copy to grab the result.
About the Whirlpool Hash Generator
Whirlpool was designed by Vincent Rijmen and Paulo S. L. M. Barreto, and the first of those names tells you most of what you need to know: Rijmen co-designed Rijndael, the cipher that became AES. Whirlpool is built on a modified AES-style block cipher run in a hashing construction, which means it inherits the design philosophy — and much of the analysis — of one of the most scrutinised primitives in cryptography. It produces 512 bits, written as 128 hexadecimal characters, making it one of the longest hashes you will meet in everyday tooling.
It has real institutional standing: Whirlpool was adopted into ISO/IEC 10118-3, the international standard for dedicated hash functions, and it has been included in general-purpose crypto libraries for years — PHP has shipped it for a long time, which is why this tool can offer it at all. There is no known practical break against it.
And yet almost nobody uses it. Whirlpool lost the ecosystem race to the SHA family: SHA-512 gives the same 512-bit output, is faster on most hardware thanks to widespread optimisation, and is what every protocol, certificate and library already speaks. Whirlpool's block-cipher-based structure is also a genuinely different design lineage from SHA-2's, which is exactly what makes it interesting as a second opinion — hash a file with both and a flaw in one family will not quietly affect the other. That, plus filling in for legacy systems and older TrueCrypt-era tooling that offered it, is where it earns its keep today.
Frequently asked questions
Can I decrypt or reverse a Whirlpool hash?
No. Whirlpool is a one-way hash — the input is not stored inside the output, so there is nothing to decrypt. Its 512-bit size also makes lookup tables hopeless for anything but very common words.
Why is my Whirlpool hash always 128 characters?
Whirlpool always outputs 512 bits, and each hex character represents 4 bits, so every hash is exactly 128 characters whether you hash a single letter or an entire file.
Is Whirlpool secure?
There is no known practical break against Whirlpool, and it is an ISO/IEC 10118-3 standard. It has simply been analysed far less than SHA-2, so for new work SHA-512 remains the safer default.
Whirlpool or SHA-512?
SHA-512 for almost anything new — it is faster in practice and universally supported. Whirlpool is worth it when you specifically want a hash from a different design family than SHA-2, or when a legacy system requires it.
Is my text sent anywhere?
Your text is sent to our server to be hashed, because browsers cannot compute Whirlpool — they only expose the SHA family. It is hashed and immediately discarded, never logged and never stored.