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Key Matcher

Verify that your certificate, CSR, and private key belong together.

Your Private Key Is Protected

This page runs in a hardened security environment. No analytics, tracking, or third-party scripts are loaded. Your private key is never stored, logged, or cached.

Certificate PEM (optional)

CSR PEM (optional)

Private Key PEM (optional)

Unencrypted keys only. Never share your private key.

Provide at least 2 of the 3 inputs. Matching is done by comparing SPKI SHA-256 fingerprints.