Password Generator — Free Strong Random Password Generator

Generate cryptographically secure random passwords — customizable length, character sets, and bulk generation.

100% Client-Side — Your data never leaves your browser
Very Strong (129 bits)
83264128

Frequently Asked Questions

Generating Strong Passwords with Cryptographic Randomness

Strong passwords combine sufficient length, character diversity, and true randomness. This generator uses crypto.getRandomValues() — the browser's cryptographically secure random number generator — ensuring every character choice is unpredictable and unbiased. The generation runs entirely in your browser with zero network requests.

Password entropy measures strength in bits: how many guesses an attacker would need in the worst case. A 20-character password using all character types (lowercase + uppercase + digits + symbols) has approximately 130 bits of entropy — requiring 2^130 guesses to crack by brute force. No computer can crack this in any reasonable timeframe.

Use a password manager (Bitwarden, 1Password, Dashlane) to store generated passwords. Enable 2FA on important accounts. The biggest security risk isn't password strength — it's password reuse across sites. Generate unique passwords for every account.

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