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Password Generator Online — Strong & Secure

Generate cryptographically secure passwords with custom length and character rules. Uses the Web Crypto API — randomness is generated entirely in your browser and no passwords are transmitted anywhere. Choose which character sets to include: uppercase, lowercase, digits, and symbols.

16
8128

Character types

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Password Security Tips

  • A 20+ character password with mixed character types is effectively uncrackable by brute force with current hardware.
  • Never reuse passwords across sites — a breach on one site exposes your accounts elsewhere.
  • Generation uses the Web Crypto API (crypto.getRandomValues) — cryptographically secure, not predictable like Math.random().
  • Avoid dictionary words, names, or dates even with substitutions like 3 for e — these patterns are in every cracking dictionary.
  • Store generated passwords in a password manager — do not copy them into a notes app or email.

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