CRT PEM
File conversion

Convert CRT to PEM

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Is it possible to convert CRT to PEM?
Yes - CRT converts to PEM.

Common conversion: turn a binary DER .crt into Base64 PEM for Linux web servers (Apache/Nginx). 'openssl x509 -inform der -in cert.crt -out cert.pem -outform pem'. If the .crt is already PEM text (starts with -----BEGIN CERTIFICATE-----), just rename it. See the pem KB for encoding details.

Also to PEM: JKS · REQ · PPK

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert CRT to PEM

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