Estimate strength using length, character classes and pattern checks.
Inputs and results
Input: A password typed locally.
Output: Strength, rough entropy/crack-time estimate and suggestions.
How it works
A password typed locally.
Inspect the heuristic checks as you type.
Examples
science Example to try
Compare a repeated word with a longer random value.
Limitations
A heuristic, not a breach lookup or measured resistance. Crack times assume a model and can mislead for predictable or reused secrets.
Processing & Privacy
Processing uses your browser rather than uploading the supplied input to a processing server. Fonts and tool libraries can make third-party network requests. Optional analytics loads after consent. See the Privacy Policy for site-wide details.