A der file extension is related to the DER encoded internet security certificate file format. A der file stores certificate.

Detailed description

Software that open der file

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DER file extension - DER encoded internet security certificate

What is der file? How to open der files?

File type specification:

Internet related file type icon Internet related file type

Email attachment blocked file type icon Email attachment blocked file type

der file icon: der filetype icon

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:

The default software associated to open der file:

Microsoft Edge icon

Microsoft Corporation logoMicrosoft Edge  Microsoft Windows software

Company or developer:
Microsoft Corporation

Microsoft Edge is web browser introduced in Microsoft Windows 10 operating system. It's fast and built for modern web applications and presentations. It allows users to simple share, reading and discover the Internet.

Safari icon

Apple, Inc. logoSafari  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

Safari is the default web browser integrated to Apple Mac OS X since version 10.3 "Panther". It is also used in iOS devices like iPads and IPhones.

Help how to open:

Opening a certificate usually prompts you to install it to your system. Be careful when installing unknown certificates.

How to convert:

Certificates are not meant to be converted to anything else.

List of software applications associated to the .der file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open der file, edit der file, convert der file, view der file, play der file etc. (if exist software for corresponding action in File-Extensions.org's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting der files.

Software that import der file - DER encoded internet security certificate

Programs supporting the exension der on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for import der file action.

Microsoft Windows:

Main software associated with der file by default:
Microsoft Edge small icon Microsoft Edge
Other suggested software:
Opera browser small icon Opera browser
Firefox small icon Firefox

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