Password Strength Checker
Type a password, or one you plan to use, and get a live strength verdict built on length, character variety, pattern detection, and common-password awareness, plus concrete improvement tips.
How to use the Password Strength Checker
- Type or paste the password you want evaluated.
- Watch the strength meter update with every change.
- Review the breakdown of what helps and what hurts.
- Apply the suggestions and watch the score respond.
When the Password Strength Checker is useful
- Auditing passwords before committing them to an account.
- Understanding why substitutions like p@ssword do not help.
- Teaching password hygiene in security training.
- Comparing candidate passwords for an important account.
How the Password Strength Checker works
The checker weighs the factors that actually resist cracking: raw length first, character variety second, and penalties for dictionary words, keyboard patterns, repeated sequences, and known leaked passwords. The verdict reflects how modern cracking tools attack, not just character counts, which is why Tr0ub4dor-style tweaks score lower than people expect. Analysis happens entirely in your browser, so the password you test never crosses the network.
Limits to keep in mind
A strong score cannot offset reuse; every important account deserves its own unique password.
Frequently asked questions
Is it safe to type my real password here?
The analysis is fully local; nothing is transmitted or stored, but testing a variation is fine if you prefer caution.
Why is my long password scored lower?
Repetition, dictionary words, and predictable patterns weaken long passwords more than people assume.
What is the single best improvement?
Length: each additional random character multiplies cracking time significantly.
Last reviewed: October 2026.