Simple tools for better password security
Check password strength and generate secure passphrases with simple, privacy-conscious tools that run in your browser.
Password Strength Checker
Check how resistant a password is to guessing, see what makes it predictable, and get practical ways to improve it.
Check password strengthSecure Passphrase Generator
Create a strong, random and memorable passphrase using secure randomness in your browser.
Generate a passphrase
Privacy by design
PassCheckup’s password tools run locally in your browser. Passwords and generated passphrases are not sent to PassCheckup.
Understand, don’t just score
Password security isn’t just about adding more symbols. Length, randomness and predictable patterns all matter. PassCheckup is designed to explain those factors clearly so you can make better choices.