PIN Generator
Generate secure random numeric PINs.
How to use the PIN Generator
- Choose how many digits.
- Choose how many PINs to make.
- Click Generate and copy the one you want.
About the PIN Generator
This generator makes between 1 and 20 numeric PINs, each 3 to 12 digits long, using crypto.getRandomValues — your browser’s cryptographically secure random source, the same class of randomness used for keys — rather than the predictable Math.random. Everything happens on your device; no PIN is sent to a server, logged or stored, so you can generate one for a lock, a SIM or a card and trust that it never left your screen.
The honest limitation is mathematical, not about the randomness: a short numeric PIN simply has few combinations. A 4-digit PIN is only 10,000 possibilities, and a 6-digit one a million — trivial for a computer to run through. PINs stay safe only because the device enforces attempt limits and lockouts, not because they are hard to guess in the abstract. Never use a PIN where a real password belongs.
When you need something an attacker cannot brute-force so easily, generate a full password instead, or test one you already have with the password strength checker.
Frequently asked questions
Is the randomness actually secure?
Yes. It uses crypto.getRandomValues, your browser’s cryptographically secure random source, not the predictable Math.random. Each digit is drawn from that source.
Are the PINs sent or stored anywhere?
No. They are generated entirely on your device and never leave your screen — nothing is sent to a server, logged or saved.
How many PINs and digits can I make?
Between 1 and 20 PINs at a time, each from 3 to 12 digits long.
Is a 4-digit PIN secure?
Only in the right context. A 4-digit PIN has just 10,000 combinations, so it relies on the device’s attempt limits and lockouts, not its length. Do not use a short PIN where a full password belongs.
Can I get the same PIN twice in one batch?
With random digits it is possible, especially for short PINs and larger batches — a 3-digit PIN has only 1,000 possible values. Generate again if you need every PIN to be distinct.