Check your Certificate Matches a Private Key or CSR

Our free certificate checking tool makes it easy to determine whether a Private Key or CSR file matches a Certificate in PEM format.

New and More Secure!

Our new Certificate/Key checking tool will perform the check in your browser without submitting any information to our servers, making it more secure than ever.

Include the full contents of the Certificate in PEM format.

What do you want to check your Certificate against?

Include the full contents of the CSR in PEM format.

Include the full contents of the Private Key in PEM format.

If you need to generate a new CSR and Private Key: Try our CSR Generator

You can use your CSRs to issue trusted SSL Certificates through SSLTrust for any of our Certificate Authorities

VerokeyGeoTrustSectigoDigiCertThawteComodoRapidSSL

Frequently asked questions