PEM to PFX

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

● Runs on our server

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.

How it works

Our server combines the certificate, key and chain with OpenSSL’s PKCS#12 export and encrypts the file with your password. If the PHP extension can’t produce the format you need, we fall back to the openssl command line. Nothing is stored.

PEM to PFX

How it works

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