Random PIN Generator
Generate unbiased random 4, 6, 8 or custom-length PIN codes.
Why use this tool?
Generate random numeric PINs of 4, 6, 8 or any length up to 12, where every digit is equally likely.
How to use it
- Pick a length or enter a custom one.
- Click Regenerate until you have one you like.
- Copy the PIN.
How the PINs are generated
Each digit comes from your browser's cryptographic random number generator (the Web Crypto API), the same source used for encryption keys, not from the ordinary Math.random function. Numbers that would make some digits slightly more likely than others are thrown away and drawn again, so every digit from 0 to 9 is equally likely in every position.
PINs are generated on your device and never sent anywhere. You can pick 4, 6 or 8 digits, or enter any length from 3 to 12.
How strong is a PIN?
Each extra digit multiplies the number of possible PINs by ten. A 4-digit PIN has 10,000 possibilities, a 6-digit PIN has 1,000,000 and an 8-digit PIN has 100,000,000. That sounds small next to a password, but PINs rely on another protection: cards, phones and apps usually lock or slow down after a few wrong attempts, so an attacker can only try a handful of guesses.
The real weakness is predictable choices. People often pick 1234, 0000, repeated digits, patterns on the keypad or a year of birth, and attackers try those first. A truly random PIN avoids that whole group of easy guesses.
Choosing and using a PIN
Use the longest PIN the system allows: six digits is far harder to guess than four. Avoid dates and numbers connected to you, such as a birthday, a house number or the last digits of your phone number, since these can often be found online.
Use a different PIN for your bank card, your phone and your apps, so that one leaking doesn't unlock the others. If you need to keep a record, store it in a password manager rather than on a note in your wallet or phone case.
Frequently asked questions
Are these PINs truly random?
Yes. They come from the browser's cryptographic random generator, and each digit is equally likely. Nothing is stored or sent to a server.
Is a 6-digit PIN much safer than a 4-digit one?
Yes: 1,000,000 combinations instead of 10,000, a hundred times more. Combined with lockouts after a few wrong tries, it is very hard to guess.
Should I avoid PINs like 1111 or 1234 even if they come up randomly?
Yes. A random generator can produce them, but attackers try them first, so click Regenerate and pick a less obvious one.