CER PFX
File conversion

Convert CER to PFX

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Is it possible to convert CER to PFX?
Yes - CER converts to PFX.

Bundle the certificate with its private key (and chain) into a password-protected PKCS#12 .pfx/.p12 for Windows/IIS or Java: 'openssl pkcs12 -export -in cert.cer -inkey private.key -out out.pfx'. You must have the matching private key - a .cer alone (public only) can't make a usable .pfx.

Also to PFX: P12 · JKS · PEM

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert CER to PFX

Converting a .CER file to .PFX lets you open the content in software that prefers the .PFX format, though some details may change compared with the original. We are still putting together the list of programs that handle .CER files.

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

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