SSL Certificate Tools
Quick tools for checking, decoding, matching and converting SSL certificates. Everything runs in PHP on your own server.
SSL Checker
Check SSL installation, expiration date, SANs, issuer and chain.
CSR Decoder
Decode a Certificate Signing Request and verify organization info.
Certificate Decoder
Decode SSL certificates and inspect subject, issuer, validity and extensions.
Certificate Key Matcher
Check whether a private key, CSR and certificate belong together.
SSL Converter
Convert SSL certificates between PEM, DER and PFX/PKCS#12.