Paste any PEM encoded certificate in the following text field and parse all contained X509 certificates. All calculations are done in the browser, the pasted data never leaves your computer.
Useful commands:
openssl s_client -showcerts -connect www.example.com:443keytool -import -cacerts -file certificate.pemopenssl pkcs12 -in *.pfx -nocerts -out key.pemopenssl pkcs12 -in *.pfx -clcerts -nokeys -out cert.pem