All analysis happens in your browser — nothing is stored or transmitted
All analysis happens locally on your device using JavaScript. Nothing is stored or transmitted to any server. You can disconnect from the internet and this tool still works.
An 8-character lowercase password has 208 billion possible combinations and is crackable in under 1 hour. Adding numbers and mixed case creates 218 trillion combinations — crackable in about 22 hours. A 12-character password with uppercase, lowercase, numbers and symbols has 475 trillion trillion combinations — estimated crack time of over 34,000 years at current computing speeds.
Password strength is measured by entropy — the number of possible combinations a cracker must try. Each additional character and each new character type (uppercase, lowercase, numbers, symbols) multiplies the number of combinations exponentially. This checker analyzes your password entirely in your browser — your password is never transmitted to any server and is immediately discarded when you leave the page.
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