Password Strength Checker

Assess the robustness of your passwords with this client-side strength checker. Get immediate feedback on how to improve your password security. Your password is not sent anywhere.

Enter Password:

Strength: N/A

Optionally, check if this password has appeared in a data breach using the 'Have I Been Pwned?' service. Your password is never sent; only a part of its anonymous hash is used to check for matches.

This feature uses the k-Anonymity model to protect your privacy when interacting with the Have I Been Pwned API.