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DER File Extension

DER file extension is created by Developer, also known as DER Certificate File. DER has been classified as Web Files. This File type categories under Zip, Text, Binary and XML, however, the format of this file format has not been determined yet. You can open DER files in Microsoft Internet Explorer program.



DER Certificate File Type

DER Certificate File Type
Extension .der
Developer Not Available
Popularity 5.0 (57 Votes)
Mime Type application/x-x509-ca-cert
Default Program Microsoft Internet Explorer
Category Web Files
Format Binary
Updated 12/1/2024

What is a DER File Type?

Digital certificates provided by protected Web sites are recognized by all standard Web browsers.



Free online DER Tools & Apps

We have also the free online .DER (DER Certificate File) file extension apps that can allow to view, edit, convert from to DER, merge, split and compare the DER files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.



DER Files Common Issues

There are few common issues with the DER Certificate File .DER File Extensions while opening the .DER files on Windows and MacOs, we have solution to those issues such as:

Can't Open DER Files?

  1. You must have supported software programs installed for DER Certificate File on your system such as Microsoft Internet Explorer.
  2. Associate default Microsoft Microsoft Internet Explorer program for *.der (DER Certificate File) files.

    Associate DER Default Program on Windows
    1. Right-click a *.DER (e.g example.der) file and click Open With.
    2. In the Open with dialog box, click Microsoft Microsoft Internet Explorer program Or click Browse to locate the program (*.exe) that you want.
    3. Select check box for Always use this app to open .der files.

    Associate DER Default Program on MacOs
    1. Click *.DER (e.g example.der) file and click information -> Open With.
    2. In the programs list, click Microsoft Microsoft Internet Explorer program Or other appropriate program that you want.
    3. Confirm Change for all... and Contine.
    4. A message will appear "This change will be applied to all files with .Microsoft Internet Explorer extension. By clicking Continue you confirm your selection", click Contine to apply changes.


All Platform Software Programs for DER File Extension

List of all softwares that can open the DER files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Microsoft Windows logo image Open DER File on Windows

Software License Developer
Microsoft Edge image. Microsoft Edge 80 for Windows Bundled Microsoft
Mozilla Firefox image. Mozilla Firefox 75 for Windows Open Source Mozilla
Microsoft Internet Explorer image. Microsoft Internet Explorer 11 for Windows Freeware Microsoft
Intuit QuickBooks Pro image. Intuit QuickBooks Pro 000 for Windows Paid Intuit QuickBooks Pro

MacOs logo image - FileProInfo.comOpen DER File on Mac OS

Software License Developer
Microsoft Edge image. Microsoft Edge 80 for MacOs Bundled Microsoft
Mozilla Firefox image. Mozilla Firefox 75 for MacOs Open Source Mozilla
Apple Keychain Access image. Apple Keychain Access 10 for MacOs Bundled Apple
Apple Safari image. Apple Safari 12 for MacOs Bundled Apple

Linux logo image - FileProInfo.comOpen DER file on Linux

Software License Developer
Mozilla Firefox image. Mozilla Firefox 75 for Linux Open Source Mozilla

Website logo image - FileProInfo.comOpen DER file on Web

Software License Developer

iOS logo image - FileProInfo.comOpen DER file on iOS

Software License Developer
Microsoft Edge image. Microsoft Edge 80 for iOS Bundled Microsoft
Mozilla Firefox image. Mozilla Firefox 75 for iOS Open Source Mozilla
Apple Safari image. Apple Safari 12 for iOS Bundled Apple

Android logo image - FileProInfo.comOpen DER file on Android

Software License Developer
Microsoft Edge image. Microsoft Edge 80 for Android Bundled Microsoft
Mozilla Firefox image. Mozilla Firefox 75 for Android Open Source Mozilla

About Licensing

  1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
  2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
  3. Free+ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
  4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
  5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

DER file extension icon image.About DER - DER Certificate File

FileProInfo is to help you understand about the DER Certificate File with *.DER suffix, and provide the complete detail as how to open, edit, convert, merge, split and compare it with other related software programs, software download links and free online apps and tools.

Our professional team members at FileProInfo have been individually researched and verified the details for DER. We want to be 100% accurate and publish the information about file formats, tools, apps and software programs that we have tested and validated.

If you would like to suggest any additions or updates to this page for DER, please let us know.

Updated 12/1/2024


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