Random PIN Generator
This random PIN generator creates a truly unpredictable 4, 6, or 8-digit PIN, drawing each digit independently from your browser's cryptographically secure random number generator — no birthdays, no repeated patterns, no predictable sequences.
4-digit is the standard for device lock screens and bank cards. 6 or 8 digits gives you more possible combinations if the service you're using supports it.
crypto.getRandomValues(), the Web Crypto API's cryptographically secure random source, with
rejection sampling so every digit 0-9 has an exactly equal chance of appearing — not
Math.random(), and not a shortcut that would bias certain digits. The "PINs to avoid" table
below reflects patterns that repeatedly show up in published analyses of leaked PIN data, not an assumption
about what people probably pick.
A 4-digit PIN isn't as strong as a password — and that's normal
A 4-digit PIN has 10,000 possible combinations; a 6-digit PIN has a million. That's fine for a device lock screen with a limited number of attempts before lockout, but a PIN is not a substitute for a real password on an account that doesn't limit login attempts the same way. Use a PIN for what PINs are for — device unlock, card transactions — and a full password for accounts.
PINs to avoid if you're picking one yourself
Research into leaked PIN databases consistently finds the same handful of PINs used far more often than random chance would predict — which makes them the first guesses in any PIN-cracking attempt. If you're choosing a PIN rather than using the generator above, skip all of these:
| Pattern | Examples |
|---|---|
| Repeated digits | 0000, 1111, 2222, 4444, 7777 |
| Sequential runs | 1234, 1212 |
| Common dates/years | 2000, 1004 |
| Other frequently reused | 6969 |
Also avoid anything tied to your birth date, address, or phone number — these are exactly the details an attacker who knows you would try first. A PIN from the generator above avoids every one of these patterns automatically, since it's drawn independently from the full digit range each time.
Frequently asked questions
Is a randomly generated PIN better than one I pick myself?
Yes. People tend to reuse birthdays, repeated digits (1111, 0000), or sequences (1234), all of which are the first things a PIN-guessing attempt tries. A random PIN avoids all of that.
Should I use the same PIN everywhere?
No — reusing a PIN across your phone, card, and any other service means one guessed or leaked PIN compromises all of them. Generate a separate one for each.
Is this PIN generator secure?
Yes. It uses the same cryptographically secure random source as the rest of this site's generators, and nothing is sent to a server or stored anywhere.