Assess password strength locally and reveal missing criteria

Anyone choosing a password can review its strength locally and spot which criteria need improving before use. Assess password strength locally and reveal missing criteria.

Assess password strength locally and reveal missing criteria. Everything stays in your browser, and nothing is uploaded or stored.

How to use

Type the password you want to study into the input field, keeping it on your device.
Run the analysis to reveal the strength criteria that are evaluated locally.
Read the strengths and weaknesses listed in the report, one by one.
Change the password in your manager if important criteria are missing.
Erase the field to analyse another value without keeping the previous one visible.

Example

With the sample input Example2024!, the tool checks length, character types and detectable patterns. Look at the missing criteria rather than only the final verdict, then improve the value before using it on a real service, especially if it resembles a common word with a year.

Input

Example2024!

Limits and formats

The analysis does not tell you whether a password has already leaked; it only checks strength criteria.
A long password can still be weak if it follows a predictable pattern.
The result depends on the rules built into the tool, not on every website policy.
Never share a real password in a tool you do not control.
A high score is an indication and does not prove that the password cannot be guessed.

Where processing happens

The analysis runs inside your browser. The password you type stays on your device and is not sent to any remote service. The tool does not store the value.

Frequently asked questions

Is the password sent anywhere?

No, the analysis happens locally in your browser. The value you enter does not leave your device and is not kept by the tool.

Why can a long password still be weak?

Length alone is not enough if the password follows a common pattern, such as a dictionary word followed by a year or simple digits. The analysis looks for those predictable structures.

Can I use this analyser for a work password?

You can test a fake value or a pattern, but avoid entering a real secret unless you trust the environment. For a work password, follow your organisation security policy.