test how strong it is
This tool analyzes a password's length and character variety to estimate how resistant it would be to guessing and brute-force attacks, giving you a quick strength rating.
Checking whether a new password is strong enough before using it.
Understanding what makes a password weak — length, repetition, lack of variety.
Comparing a few password ideas before settling on one.
No — the check runs entirely in your browser; the password you type is never transmitted or stored.
Length and a mix of uppercase, lowercase, numbers and symbols are the main factors — longer, more varied passwords are harder to guess or brute-force.
ToolBench runs this tool entirely in your browser. Your file or text is processed on your own device using JavaScript — nothing is uploaded to a server, nothing is stored, and there's no sign-up wall between you and the result. That's true of every one of the 500+ tools on this site, from PDF utilities to unit converters.