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Utility Tools
Generate cryptographically secure random passwords with customizable length (4–128), character sets (uppercase, lowercase, numbers, symbols), and exclusions. Shows entropy and strength score.
Follow these simple steps to get instant, accurate results directly in your browser:
Choose password length (12–64 characters) and toggle uppercase, numbers, and symbols.
Switch to passphrase mode for memorable multi-word passphrases (e.g. correct-horse-battery-staple).
Click 'Generate Password' and copy directly to your clipboard.
The Password Generator creates cryptographically strong, high-entropy random passwords and memorable passphrases using browser-native Cryptographically Secure Pseudorandom Number Generators (CSPRNG).
Unlike standard pseudo-random number generators (like Math.random()) which produce predictable sequences vulnerable to cryptanalysis, our generator utilizes crypto.getRandomValues(). This ensures cryptographically certified statistical entropy across uppercase letters, lowercase letters, numbers, and special symbols.
All password generation occurs locally in volatile browser memory. Passwords generated are kept strictly in your local session without server transmission.
Uses hardware-accelerated crypto.getRandomValues() for true cryptographic randomness.
Calculates password entropy in bits to quantify resistance to brute-force attacks.
Optionally excludes confusing lookalike characters (0, O, 1, l, I).
Generated passwords never leave your computer screen.
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