Use our free online SSL certificate decoder tool to decode SSL certificate in order to make sure that your SSL certificate is valid and not expired. you can use this tool to decode your PEM, DER, or PFX encoded SSL certificate and verify that all the information is correct. All you need to do is copy your SSL certificate into the text field below.
The correct SSL certificate should:
start with '-----BEGIN CERTIFICATE-----'
and ends with '-----END CERTIFICATE-----'.
As soon as the SSL certificate is decoded, it will describe the following information: Issued date, Expiration date, Private Key information, Serial number, Key size, Common name, SAN domains, Organization, E-mail address, Country and other technical details.