Generate cryptographically secure random passwords. Customize length (4-128), character sets, and quantity. Uses crypto.getRandomValues() for true randomness.
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Cryptographic Password Generator
Uses crypto.getRandomValues() — true randomness, never predictable
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Password Length: 16
4326496128
Character Sets
Generate Multiple
passwords at once
FAQ
Frequently Asked Questions
Yes. The generator uses crypto.getRandomValues(), the browser's cryptographically secure pseudorandom number generator (CSPRNG). This is the same standard used in cryptographic systems and is fundamentally different from Math.random().
16 characters is strong for most accounts. 20+ is recommended for sensitive accounts (banking, email). 32+ for encryption keys and master passwords.
A passphrase is a sequence of random words (e.g. 'correct-horse-battery-staple-42'). It is long but memorable, and has very high entropy. Recommended for master passwords you need to memorize.
No. Generation happens entirely in your browser's JavaScript. No data leaves your device.
Characters like 0 (zero) and O (letter O), or l (lowercase L) and 1 (one) look similar in many fonts. Excluding them reduces transcription errors when typing passwords manually.