Password Generator — Free Online Tool
Generate strong, cryptographically random passwords using the browser's crypto.getRandomValues() API — never Math.random(). Configure character sets (uppercase, lowercase, digits, symbols), set the length, and generate up to 20 passwords at once. Entropy in bits is shown for each configuration.
100% client-side. No uploads. Your data never leaves your browser.
How to use Password Generator
- Configure character sets: enable/disable uppercase, lowercase, digits, and symbols.
- Set the desired password length (8–128 characters).
- Click 'Generate' to produce one or more passwords.
- Copy any password with its individual Copy button.
Frequently Asked Questions
Is this safe to use for real passwords?
Yes. The generator uses crypto.getRandomValues() which is backed by the OS's cryptographic entropy pool. It is as secure as any password manager's generator.
Are generated passwords stored anywhere?
No. Passwords are generated in memory and never written to localStorage, cookies, or sent over a network.
What does 'entropy bits' mean?
Entropy measures unpredictability. Each bit doubles the number of possible passwords. 128 bits is considered secure against brute force with current hardware.
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