PIN Generator — Secure 4, 6 & 8 Digit PINs
Strong passwords & passphrases — instantly, offline, free
Generate cryptographically random numeric PINs using the Web Crypto API — not the predictable Math.random(). Available in 4, 6, or 8 digit lengths. Bulk generate up to 20 PINs and download as .txt. Ideal for ATM PINs, device lock codes, OTP test seeds, and service provisioning.
Frequently Asked Questions
How secure is a PIN compared to a password?
4-digit PIN = 13 bits entropy (10,000 combinations). 6-digit = 20 bits. 8-digit = 27 bits. PINs rely on rate limiting and lockouts for security — not entropy alone.
Why use a generator instead of choosing my own PIN?
Humans unconsciously favour certain digit patterns (birth dates, repeating digits, ascending sequences). A cryptographic generator ensures true uniform randomness with no bias.
What is the difference between crypto.getRandomValues and Math.random?
Math.random() is a PRNG seeded at startup — predictable if the seed is known. crypto.getRandomValues() uses the OS entropy pool and meets cryptographic security standards.
Can I generate multiple PINs at once?
Yes. Use the count buttons (1, 5, 10, 20) to generate multiple PINs. Each is independently generated. Copy all at once or download as passwords.txt.
Are PINs safe for online accounts?
Only when combined with rate limiting (3–10 attempt lockout) and 2FA. Never rely on a PIN alone for online account security — always pair it with a second factor.