KMMR Online Tools

Certificate

Key & Certificate Matcher

Verify that a server certificate matches its private key and highlight missing or misordered intermediates.

Key ↔ Cert

Compare RSA/ECDSA public keys for a match

Chain check

Follow issuer/subject to detect gaps

Privacy

Nothing is stored

Check certificate & key

Paste or upload cert, private key, and optional intermediates (up to 1MB each)

We do not store your inputs

Up to 256 chars. Parsing attempted even if blank.

Concatenate PEM blocks if multiple

Result

Shows key match and chain consistency.

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Key match
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Algorithm
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Chain
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Message
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Leaf certificate

Leaf

No result yet.

Intermediate certificates

Chain

No result yet.

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