Password Strength Checker
Test how strong & crackable a password is.
- Start typing to check your password.
100% private — your password is analysed in your browser and never sent, saved or logged. Crack-time assumes a fast offline attack (~10 billion guesses/second).
About Password Strength Checker
The Password Strength Checker tells you how strong — and how crackable — a password really is. Type a password and instantly see a strength score, an estimate of how long it would take to crack, and specific tips to make it stronger.
It checks length, character variety and common weak patterns like sequences, repeats and well-known passwords. Everything is calculated locally in your browser: your password is never sent anywhere, stored or logged.
Use it to audit your important logins, teach good password habits, or sanity-check a new password before you rely on it.
How to use Password Strength Checker
- Paste or type your text.
- See the breakdown update in real time.
- Use the insights to improve your content.
Frequently asked questions
Is it safe to type my password here?
Yes. The check runs entirely in your browser — nothing is uploaded, stored or logged, so your password stays private.
What makes a password strong?
Length above all — aim for 12–16+ characters mixing upper and lower case, numbers and symbols, and avoid dictionary words and sequences.
Is this tool free?
Yes, completely free with no signup.