Stress Tester
How long would it take a computer to crack your password? And has it already been leaked?
Waiting
Attack speed represents how many password guesses per second the hardware can make. Modern GPUs can test billions of hashes per second against offline databases.
Estimated Crack Time
Not yet
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Found in Data Breaches
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0
Characters
0
Pool Size
0
Bits of Entropy
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k-Anonymity: Only the first 5 characters of your password's SHA-1 hash are sent to Have I Been Pwned. The full hash and your actual password never leave your device. The API returns all hashes with that prefix, and matching is done locally.
100% Private Breach Check
Breach detection uses k-Anonymity via Have I Been Pwned. Your actual password is never transmitted. Only a 5-character hash prefix is sent. Hover the key icon to learn more.