Password Leak Checker
Check if password was in breaches
Free Plan
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Privacy-First Design
We use k-Anonymity to check passwords safely. Only the first 5 characters of your password's SHA-1 hash are sent to the API - your actual password is never transmitted!
Checking against breach databases...
Good News!
This password was not found in any known data breaches.
However, this doesn't guarantee it's a strong password. Consider using a password manager!
Oh No - Password Compromised!
This password has been seen 0 times in data breaches.
What should you do?
- • Change this password immediately on all accounts
- • Use a unique password for each account
- • Enable two-factor authentication (2FA)
- • Consider using a password manager
How it works
1
Your password is hashed with SHA-1 in your browser
2
Only first 5 hash characters are sent to API (k-Anonymity)
3
We check locally against returned hashes
Free users can use tools once every 5 minutes
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