Password Leak Monitor

Check whether a password appears in a known breach corpus without sending the full password, plus local strength signals.

Everything is processed in your browser unless an external breach lookup is explicitly used.

Free Online Password Leak Monitor

Check password exposure with SHA-1 k-anonymity lookup, local strength signals, and breach-risk recommendations. Security tools here are browser-based helpers, not a replacement for a password manager, professional incident response, or a real backend sharing service.

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