An online SSL Certificate Decoder and Checker tool that can be used to parse your PEM encoded SSL certificate or PEM encoded PKCS7 certificate bundle for the validity date, key size and algorithm, and more. Each component of the X509 SSL Certificate will have a heading linked to the associated RFC-5280 section
To decode the certificate on your local machine with openssl, head over to our article on openssl view certificate post for details on how to parse and view each section of a certificate locally.
This purpose of this certificate decoder online is to parse and show in detail each part of your X509 SSL certificate according to RFC-5280.
Please email us at firstname.lastname@example.org if you find any bugs or would like to see a feature not yet supported.