Security
Password Strength Checker
Use Password Strength Checker online for free. Adjust the available options and process your data locally in your browser, with no installation or sign-up.
Your data is processed only in your browser
Features and usage
Enter your content or choose the options above, then review the result. Tool calculations run locally in your browser.
Scope and limitations
Character-space entropy applies only to uniformly random passwords. It does not represent the actual difficulty of cracking human-chosen passwords.