Password Strength Checker
Test the strength of a password: entropy in bits, estimated time to crack by an attacker, character class diversity, and concrete suggestions to make it stronger. All checks run locally in your browser — your password is never sent anywhere.
0/6
Strength
0
Entropyvalue
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CrackTime
Common Use Cases
Use the Password Strength Checker online for these scenarios:
- Daily work:: Bookmark this tool, use directly when needed, save time
- Easy to use:: Runs in web browser, no software installation needed
- Data safety:: All processing in your local browser, files not uploaded to server
- Free to use:: Completely free, no signup, no watermarks, no feature limits
- Cross-platform: Mac, Windows, Linux, mobile all work, just need a browser
Frequently Asked Questions
Here are the most common questions:
Q: Is this tool safe?
A: Yes. 100% client-side, data not uploaded, disappears when page closes.
Q: Do I need to register?
A: No. No login, no account, use directly.
Q: Are there usage limits?
A: No. Completely free, unlimited use.
Q: Does it support mobile?
A: Yes. All modern browsers work, including mobile.
Related Tutorials
Want to learn more about Password Strength Checker? Check out these tutorials: