Bulk Password Generator

Summary

Create large batches of strong, unique passwords instantly in your browser. Customize length (8–64 characters) and choose which character sets to include: uppercase letters, lowercase letters, numbers, and symbols. All generation happens client-side using the Web Crypto API — no passwords are ever sent to a server.

How it works

1. Set the password length (8–64) and how many passwords you need (up to 100).
2. Choose which character sets to include: uppercase, lowercase, numbers, and symbols.
3. The browser's crypto.getRandomValues() API builds a character pool and draws cryptographically secure random characters for each password.
4. A uniqueness check removes duplicates so every password in the batch is distinct.
5. Use Copy All to copy the full list, one password per line.

Use cases

• Provision temporary credentials for multiple new user accounts at once.
• Generate a set of strong passwords for testing authentication systems.
• Create one-time-use passwords for a group of test environments.
• Quickly seed a password manager with fresh, unique credentials.

Frequently Asked Questions