How strong is your password? Type it below and get an instant strength rating, an entropy estimate and practical tips to make it stronger. The check runs entirely in your browser — your password is never sent, stored or logged anywhere.
Privacy: the rating is calculated locally on this page. Nothing is transmitted or saved.
How to Use
- Type your password in the box (it is hidden by default; click Show to reveal it).
- Read the instant strength rating and entropy estimate.
- Follow the tips shown to make the password stronger.
Key Features
- Instant rating – from Very Weak to Very Strong, updated as you type.
- Entropy estimate – a bits-based measure of guessing difficulty.
- Common-password check – warns if your password is one of the most guessed.
- Personal tips – specific advice based on what your password is missing.
- 100% private – the check runs in your browser; nothing is sent anywhere.
FAQs
Is this password strength checker free?
Yes. It is completely free with no sign-up and no limits.
Is it safe to type my real password here?
Yes. The rating is calculated entirely in your browser. Your password never leaves the page and is never sent, stored or logged. For maximum caution, you can also test a password with a similar pattern instead of the exact one.
What makes a password strong?
Length matters most: aim for at least 12 characters with a mix of upper and lowercase letters, numbers and symbols. Avoid common words, names and predictable patterns.
What is password entropy?
Entropy, measured in bits, estimates how hard a password is to guess by brute force. Each extra bit roughly doubles the number of guesses needed. A rating of 60 bits or more is a good target for important accounts.
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