Quick Answer
What makes a strong password?
// Answer
A strong password is long and random. Length matters more than complexity: a 16-character random password mixing uppercase, lowercase, numbers, and symbols is extremely hard to crack. This generator uses your browser\u2019s cryptographically secure random source, so each password is genuinely unpredictable.
Password strength by length
| Length | Strength |
|---|---|
| 8 characters | Weak |
| 12 characters | Good |
| 16+ characters | Strong |
| 20+ characters | Very strong |
Why use this tool
Secure by design
Reusing passwords is the biggest security risk most people face. Generate a unique strong password for every account. Because generation uses the Web Crypto API locally, your passwords are never transmitted or logged — pair this with a password manager for best results.
FAQ
Frequently asked questions
At least 12 characters; 16 or more is recommended for important accounts.
Yes. They use the browser\u2019s cryptographically secure random generator (crypto.getRandomValues), not Math.random.
No. It is generated entirely in your browser and never uploaded or stored.
Entropy measures unpredictability in bits. More length and more character types mean higher entropy and a harder-to-crack password.
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