Password Strength Checker
See how strong a password really is — entropy, offline crack time and clear tips to make it stronger. Never leaves your device.
- Runs in your browser
- No upload on server
- Free, forever
- Set options
- Generate
- Copy / download
How this works — and why it's private
- Type any password — it stays on your device.
- See the strength, entropy and crack-time estimate live.
- Follow the tips to make it stronger before you use it.
Rate Password Strength Checker
One tap. Anonymous. Helps others find the good tools.
No account, no email, no tracking — just a 1–5 number.
Be the first to rate