PEM to PFX

Runs on our server

Bundle a certificate, key and chain into a password-protected .pfx.

Certificate (crt / pem) · load file

Private key (key) · load file

Chain / CA bundle — optional, but strongly recommended · load file

Private key password — only if the key is encrypted

Password for the PFX file

Files are processed in memory only and never stored. If Windows refuses to import the PFX (algorithm error), that is OpenSSL 3 using AES-256 — in that case run openssl pkcs12 -export -legacy locally.