Password Generator — Strong & Cryptographically Secure

Generate random passwords with customizable length, character types, and strength meter.

How It Works

  1. 1Upload your file by dragging it into the drop zone or clicking to browse.
  2. 2Adjust the quality slider to balance file size and visual fidelity (optional).
  3. 3Click Download to save your converted file.

About Password Generator

Weak passwords are the #1 cause of account breaches. This tool generates cryptographically secure random passwords using the Web Crypto API (crypto.getRandomValues). Customize the length (8-128 characters), toggle uppercase, lowercase, numbers, and symbols. A visual strength meter shows the entropy of your password. Bulk generate up to 20 passwords at once. No passwords are stored or transmitted — everything runs locally in your browser.

Frequently Asked Questions

Are generated passwords stored anywhere?

No. Passwords are generated using the Web Crypto API in your browser and are never stored or transmitted. Close the tab and they're gone.

What does the strength meter measure?

It calculates the entropy (randomness) of the password based on its length and the character pool size. Higher entropy means more possible combinations and a stronger password.

Related Tools