Tools/Security/Password Strength Checker

Password Strength Checker

Check your password strength.

100% on device · 0 uploads

01 · Unlimited

Use it as many times as you want — completely free.

02 · Private

Your files never leave your device; everything runs in your browser.

03 · Fast

Processing happens locally and finishes in seconds.

How to Check Password Strength

Type a password

Enter the password you want to evaluate — it never leaves your device.

Analysis runs locally

Length, character variety and common patterns are scored in your browser.

Read the verdict and tips

See the strength rating and what specifically would improve it.

Why Use This Strength Checker?

✓Instant scoring with specific improvement tips

✓Detects common patterns and sequences

✓100% local — nothing transmitted or stored

✓Free with no sign-up

Frequently Asked Questions

What does the checker evaluate?+

Length, use of upper/lowercase, numbers and symbols, plus red flags like dictionary words, sequences (1234) and keyboard patterns (qwerty).

Is it safe to type a real password here?+

The check runs entirely in your browser with nothing transmitted or stored. Still, best practice for critical accounts: test a similar-structured variant rather than the exact password.

Why is my "complex" password rated weak?+

Substitutions like P@ssw0rd are the first thing cracking tools try — a pattern that looks complex to humans is trivial to machines. Length and true randomness are what count.

What should I do with a weak password?+

Replace it with a generated random one of 16+ characters and store it in a password manager — and enable two-factor authentication where offered.