Password Strength Checker
Estimate how guessable a password is in your browser without sending the secret to Matrix.
Free browser tool
No Matrix computer needed
✓ No account or card
✓ Use the result right away
✓ Task-specific limits below
Workspace
Use password strength checker
Runs in this browser tab
The estimate runs in your browser. The password is not uploaded, logged, or included in the result.
Strength estimate
Enter a password to see a pattern-based estimate.
How to use it
Enter a password to see an estimated score and suggestions for making it stronger.
What to check
The score is an estimate, not a security guarantee; use unique passwords and multi-factor authentication.
Review the result before using it in a published page, application, or agent configuration.
Quick answers
Frequently asked questions
Does the password checker send my password to Matrix?
The estimate runs in your browser. Matrix does not need the entered password to show feedback for this tool.
Is a strong password score a security guarantee?
No. It is an estimate of guessability and can miss exposure or reuse. Use a unique password and multi-factor authentication.
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Need this work to keep going?
Matrix gives agents a private cloud computer for files, connected tools, and work that continues after you close your laptop. The browser tool above is free; a Matrix computer requires a paid plan.