Password Generator
Generate strong, customizable passwords. Cryptographically secure (Web Crypto API).
Generated with the Web Crypto API — cryptographically secure and never sent anywhere.
About Password Generator
Generate cryptographically secure passwords using the Web Crypto API (crypto.getRandomValues). Customize length (8–128 characters), character sets (uppercase, lowercase, digits, symbols), and options like excluding visually similar characters (0/O, l/1/I). Includes a live entropy and strength indicator. Generate multiple passwords at once. Passwords are never transmitted anywhere.
All processing happens entirely in your browser using modern web APIs. Nothing is uploaded to our servers — your data stays local and private. Free to use forever.
Common use cases
- Generating a strong password for a new account or service
- Creating API keys or secrets for development environments
- Generating multiple passwords for testing account registration flows
- Creating passphrases that meet specific character requirements
- Generating temporary passwords for newly created user accounts
How it works
Builds the allowed character set from your selected options, then fills an array using crypto.getRandomValues() — a cryptographically secure random number generator backed by your OS. Each character position picks a random index into the character set using the random bytes. Unlike Math.random(), crypto.getRandomValues() is suitable for security-sensitive applications.