PKIScope — certificate, PFX & private key viewer, debugger and generator

Drop SSL/TLS certificates, PFX/P12 bundles, private keys, CSRs or CRLs to decode them, verify the certificate chain, check that a key matches its certificate and get clear fixes for common problems. Generate new certificates and PFX files, or re-issue one from an existing PFX. Everything runs locally in your browser — nothing is uploaded.

What you can do

• View and decode PEM, DER, CRT and CER certificates and bundles
• Open password-protected PFX / P12 files, including legacy RC2 and 3DES encryption
• Build and verify the certificate chain from leaf to root
• Check whether a private key matches a certificate or CSR
• Decode CSRs and CRLs, and find revoked certificates
• Explore raw ASN.1 with a synced hex view
• Generate self-signed or CA-signed certificates, CSRs and PFX files