password checker

How strong is your password?

Score, crack-time estimate, and specific weaknesses. Nothing you type here is sent anywhere.

Local-onlyThe password is never sent to any server or to the AI helper — scoring happens entirely in your browser.

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AIHow can I make this stronger?

Frequently asked

Is this tool free?
Yes. The password strength checker is completely free with no usage limits. You can test as many passwords as you want.
Do I need to sign up?
No. There is no account, no signup, and no email required. Just open the page and start testing passwords.
Is my data private?
Your password never leaves your browser. All strength analysis, scoring, and crack-time estimates run entirely in JavaScript on your device. Nothing is sent to any server.
How is the crack time calculated?
The tool estimates the character space based on the types of characters in your password (lowercase, uppercase, digits, symbols), computes the total number of combinations, and divides by one trillion guesses per second to approximate the time a modern attacker would need.