Test your passwords against advanced guessing algorithms securely.
The Password Strength Analyzer uses zxcvbn, a realistic password strength estimator originally developed by Dropbox. Rather than just checking for a mix of upper and lower case letters, this tool utilizes advanced pattern matching and vast dictionaries (like top 100k common passwords, names, movies, keyboard patterns, dates, and leetspeak) to estimate exactly how long it would take an attacker to guess your password. It runs entirely locally in your browser so your passwords never leave your device.
- Start typing a password into the input field.
- The analyzer will instantly provide a score out of 4, along with estimated crack times for various attacking scenarios.
- If your password is weak, helpful warnings and suggestions will appear advising you on how to make it more secure.
- Use the 'Generate' button to instantly create a highly secure, randomized passphrase that is easy to remember but impossible to guess.
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