Production-Ready JavaScript Password Generator

JavaScript Password Generator

Generate strong, secure, cryptographically random passwords and Diceware passphrases with guaranteed character diversity, WebCrypto entropy, and bulk export capabilities.

Password Options
16 characters
4 words
1 passwords
WebCrypto Secure API
Generated Password Output
Password Strength & Entropy:Very Strong (~105 bits)
Warning: Password contains weak sequential or dictionary patterns.
Secure Password

Generated: 1Pool Size: 94 chars
100% WebCrypto Secure

Curated Password Presets

Click any preset to load security password or passphrase configuration rules instantly.

Cryptographically Secure

Uses WebCrypto `crypto.getRandomValues()` with rejection sampling and Fisher-Yates shuffle.

Guaranteed Diversity

Guarantees at least 1 character from each selected category (uppercase, lowercase, numbers, symbols).

Passphrase Mode

Generate multi-word Diceware passphrases easy to memorize for master key protection.

What is a Password Generator?

A Password Generator creates strong, randomized passwords resistant to dictionary attacks and automated credential stuffing attempts.