LanguageDER
DER encoded internet security certificate
File type: Email attachment blocked file, Internet related file
A der file extension is related to the DER encoded internet security certificate file format. A der file stores certificate.
What is der file?
File type category:
Email attachment blocked file
Internet related file
Date updated: June 27, 2025
The der file extension is used for DER encoded internet security certificates. Secure your server, web site transactions, logins, webmail and connections with an SSL Certificate.
Choose GlobalSign SSL Certificates for the highest levels of strong security, confidence and trust in your web site, corporate assets and online brand.
MIME types:
application/x-x509-ca-cert
application/pkix-cert
How to open der file?
Opening a certificate usually prompts you to install it to your system. Be careful when installing unknown certificates.
How to convert der file?
Certificates are not meant to be converted to anything else.
Suggested software to open der file:
Associated software actions with the der file
Software apps that import der files:
Microsoft Edge (Microsoft Windows)
Opera browser (Microsoft Windows)
Firefox (Microsoft Windows)
Software applications that handle other tasks involving der files:
Microsoft Edge (Microsoft Windows)
Opera browser (Microsoft Windows)
Firefox (Microsoft Windows)
Google Chrome (Microsoft Windows)
Safari for Microsoft Windows (Microsoft Windows)
Google Chrome for Mac (Apple macOS / Mac OS X)
Firefox for Mac (Apple macOS / Mac OS X)
Opera browser for Mac (Apple macOS / Mac OS X)
Safari (Apple macOS / Mac OS X)
Google Chrome for Linux (Linux/Unix)
Firefox for Linux (Linux/Unix)
Opera browser for Linux (Linux/Unix)