Strong Password Generator
Generate strong, random passwords with custom length and character sets. Everything runs in your browser using the native Web Crypto API.
What is Strong Password Generator?
Generates strong random passwords using the browser's native Web Crypto API (cryptographically secure, not pseudo-random). Customize length and character sets (uppercase, lowercase, numbers, symbols). The password never leaves your browser — it is not sent to any server.
How to use
- Set the password length (8 to 64 characters recommended).
- Pick which character sets to include.
- Click generate — a new password appears.
- Use the copy button and paste it into your password manager.
Tips for strong passwords
- Use at least 16 characters when the service allows.
- Combine uppercase, lowercase, numbers and symbols.
- Use a unique password per account — store them in a password manager.
- Enable two-factor authentication (2FA) whenever possible.
Frequently asked questions
How does the strength meter work?
Strength is based on the number of character classes enabled (uppercase, lowercase, numbers, symbols). Use all four with at least 16 characters for a strong password.
Are these passwords really random?
Yes — randomness comes from the browser's native crypto.getRandomValues, the same primitive used by security libraries.
Is anything sent to a server?
No. The page has no server logic. Generation runs entirely in your browser.