SSL Converter

Convert your SSL certificate to different formats

If your CA has sent you the certificate file in a format that your server doesn't accept, you'll need to convert the certificate file's format. You can easily do this on your own system by running a few OpenSSL commands. Down below, we have compiled OpenSSL commands that you'll need based on your certificate format and server type.

OpenSSL commands to convert PEM file

  • Convert PEM to DER
  • openssl x509 -outform der -in certificate.pem -out certificate.der

  • Convert PEM to P7B
  • openssl crl2pkcs7 -nocrl -certfile certificate.cer -out certificate.p7b -certfile CACert.cer

  • Convert PEM to PFX
  • openssl pkcs12 -export -out certificate.pfx -inkey privateKey.key -in certificate.crt -certfile CACert.crt

OpenSSL commands to convert DER file

  • Convert DER to PEM
  • openssl x509 -inform der -in certificate.cer -out certificate.pem

OpenSSL commands to convert P7B file

  • Convert P7B to PEM
  • openssl pkcs7 -print_certs -in certificate.p7b -out certificate.cer

  • Convert P7B to PFX
  • openssl pkcs7 -print_certs -in certificate.p7b -out certificate.cer

    openssl pkcs12 -export -in certificate.cer -inkey privateKey.key -out certificate.pfx -certfile CACert.cer

OpenSSL commands to convert PFX file

  • Convert PFX to PEM
  • openssl pkcs12 -in certificate.pfx -out certificate.cer -nodes