Password strength checker
🔒 Runs locally in your browser. Nothing you enter is uploaded.
How to use it
- Type or paste a password into the box.
- Read the strength rating, entropy in bits and estimated crack times.
- Fix the issues it lists, or switch to a long passphrase.
Frequently asked questions
What makes a password strong?
Length matters most. A passphrase of 4–5 random words is stronger and easier to remember than a short complex password. Use a password manager and turn on MFA.
Is it safe to test my password here?
Yes. The check runs entirely in your browser and the password never leaves your device. Still, avoid typing passwords you use for critical accounts into any website.
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