See how strong a password really is
Length and unpredictability decide how hard a password is to crack, not whether it has a capital letter and a symbol. This checker estimates strength by looking at what a password is made of and how predictable it is, then shows a rough sense of how long it would take to guess. Crucially, it does the analysis entirely offline — your password is never sent anywhere.
How to use it
- Type or paste the password you want to test.
- Read the strength estimate and the feedback.
- Lengthen or randomise it until the rating is strong.
What makes a password strong
- Length first — every extra character multiplies the effort to crack it.
- Unpredictability — avoid names, dates, and keyboard runs like "qwerty".
- Uniqueness — a strong password reused everywhere is still a single point of failure.
Questions people ask
Is it safe to type my real password here? Yes — the check runs in your browser and the password is never transmitted or stored. Even so, prefer testing a sample like it rather than a live one.
Why does a short "complex" password score low? Length beats complexity; a short password is quick to brute-force however many symbols it has.