CER File Extension

CER file extension is created by Developer, also known as Internet Security Certificate. CER has been classified as Common File Types. 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 CER files in Microsoft Internet Explorer program.

Internet Security Certificate File Type

What is a CER File Type?

The CER files can be viewed by clicking on the locking icon near the edge of the icons; a browser window when' a secure site (secured sites use SSL encryption as seen by ;" https: / / /" prefix in the' URL) is accessed.

Secure certificate information can be viewed in Internet Explorer and Firefox by double-clicking on the icons located near the bottom right corner-of the browser window. To view the Safari certificate, click on the locking icon located at the top-to the right of the browser window.

Free online CER Tools & Apps

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

CER Converter

Open CER

Edit CER

Compare CER Files

Merge CER Files

Split CER Files

CER Metadata Viewer

CER Files Common Issues

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

Can't Open CER Files?

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

   Associate CER Default Program on Windows

   1. Right-click a *.CER (e.g example.cer) 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 .cer files.
   
   

   Associate CER Default Program on MacOs

   1. Click *.CER (e.g example.cer) 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.

Related CER File Extensions

CER default file extension is .CER and other similer related extensions are:

All Platform Software Programs for CER File Extension

List of all softwares that can open the CER 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.

Open CER File on Windows

	Software	License	Developer
	Adobe Acrobat DC 2019 for Windows	Commercial	Adobe
	Microsoft Edge 80 for Windows	Bundled	Microsoft
	Mozilla Firefox 75 for Windows	Open Source	Mozilla
	Microsoft Internet Explorer 11 for Windows	Freeware	Microsoft
	Adobe Reader DC 2018 for Windows	Freeware	Adobe
	Trend Micro Ransomware File Decryptor 000 for Windows	Free	Trend Micro Ransomware File Decryptor

Open CER File on Mac OS

	Software	License	Developer
	Adobe Acrobat DC 2019 for MacOs	Commercial	Adobe
	Microsoft Edge 80 for MacOs	Bundled	Microsoft
	Mozilla Firefox 75 for MacOs	Open Source	Mozilla
	Apple Keychain Access 10 for MacOs	Bundled	Apple
	Adobe Reader DC 2018 for MacOs	Freeware	Adobe
	Apple Safari 12 for MacOs	Bundled	Apple

Open CER file on Linux

	Software	License	Developer
	Adobe Acrobat DC 2019 for Linux	Commercial	Adobe
	Mozilla Firefox 75 for Linux	Open Source	Mozilla
	Adobe Reader DC 2018 for Linux	Freeware	Adobe

Open CER file on Web

Open CER file on iOS

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

Open CER file on Android

	Software	License	Developer
	Microsoft Edge 80 for Android	Bundled	Microsoft
	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.

About CER - Internet Security Certificate

Listed file converters are from the wide range of online file converter.

These are the most polular file/document converters based on the user's review and usage on the FileProInfo.