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Password Strength Checker
Your password never leaves your browser.
▸About this tool
Analyse your password's strength with a detailed score, estimated crack time, checklist, and personalised improvement tips.
▸Privacy and details
Your files never leave your device.
Fast browser processing with no account required.
Optimized for desktop and mobile with accessible controls.
▸How to use
- Type or paste a password into the input field.
- The strength score (0–10), label, and colour bar update instantly.
- See the estimated crack time based on brute-force at 10 billion guesses per second.
- Review the checklist to see which strength criteria your password passes or fails.
- Follow the improvement tips to make your password stronger.
▸Why use this tool
Most people do not know what makes a password truly strong. This tool gives you immediate, actionable feedback: not just a vague "medium" rating, but a specific checklist of what to fix, and an estimated crack time that puts the risk in concrete terms. Your password is never sent to a server.