Password Strength Checker

Test your password strength in real-time. See estimated crack time, character variety analysis, common password detection, and improvement tips. 100% browser-based — your password never leaves your device.

Password Strength Checker

Test your password strength in real-time. See crack-time estimate and improvement tips. 100% browser-based — your password never leaves your device.

Privacy note: Your password is analyzed entirely in your browser. It is never sent to any server, never logged, never stored. You can safely test your real passwords here.

How to Use the Password Strength Checker

  1. 1Type a candidate password — nothing is transmitted or stored.
  2. 2The strength meter scores length, character variety and entropy in real time.
  3. 3Read the specific weakness flags — reused patterns, dictionary words, short length.
  4. 4Follow the suggestions until the meter turns strong, then use the password with a manager.

Frequently Asked Questions