PIN Generator
Generate a random numeric PIN for a phone lock screen, safe, ATM card, or account verification code. Avoids predictable patterns like birth years or repeating digits.
Generated locally via crypto.getRandomValues(). Never sent to our servers.
How Secure Is a PIN?
| Digits | Combinations | Typical use |
|---|---|---|
| 4 | 10,000 | Phone lock (with attempt lockout only) |
| 6 ⭐ | 1,000,000 | Recommended default |
| 8 | 100,000,000 | Safes, systems without lockout protection |
| 12 | 1,000,000,000,000 | Maximum-security numeric codes |
A PIN's real-world security depends heavily on whether the system enforces an attempt limit. A 4-digit PIN is reasonable on a smartphone (which wipes or delays after repeated failures) but weak on a system with unlimited guesses.
Why a Random PIN Beats a Chosen One
Common PINs Are Extremely Common
Analyses of leaked PIN databases consistently show that a small handful of PINs (1234, 0000, 1111, birth years) account for a large fraction of all PINs in use. These are the first guesses in any real attack.
Personal Dates Are Guessable
Birth years, anniversaries, and address numbers can often be found via social media or public records, making PINs based on them far weaker than their digit count suggests.
True Randomness Removes All Patterns
This generator uses crypto.getRandomValues(), giving every digit an equal, independent chance. No sequences, no repeat bias, nothing an attacker's pattern list can exploit.
Frequently Asked Questions
A 4-digit PIN has only 10,000 possible values, which is trivially brute-forceable without a lockout mechanism. It's only reasonably safe on devices (like smartphones) that enforce a limited number of attempts before a delay or wipe.
Yes, absolutely. Leaked PIN databases show a small set of PINs are wildly overrepresented. They are the first values any attacker or automated tool will try. A randomly generated PIN sidesteps this problem entirely.
6 digits (1 million combinations) is a reasonable default for most uses. For safes or systems without attempt lockouts, use 8 or more digits.