PEM File Extension
Privacy Enhanced Mail Certificate
- File Type pem
- Popularity
- Application OpenSSL
- Category Web Files, Encoded Files
- Format Text
What is a PEM file?
Privacy Enhanced Mail Certificate works with the PEM file extension and is classified under Web Files and Encoded Files, with a total of 569 files.
PEM file support extends to various operating systems, including Windows, Linux and Mac OS. You can open a PEM file using one of 10 programs, for example OpenSSL, Google Chrome and Microsoft Edge.
Programs that support PEM files
How to open a PEM file?
The most common reason why a PEM file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
When it comes to opening and working with PEM files, OpenSSL, Google Chrome and Microsoft Edge are the top choices for users. If you want the most recent release of OpenSSL, head over to the site and download the version designed to run on all platforms.
After installing, your OS should instantly open PEM files with OpenSSL.
Set OpenSSL as the default PEM handler
Changing Default Programs in Windows
- Start by right-clicking on your PEM file and selecting the "Open With" option. From there, click "Choose another app" to continue;
- In the pop-up window, find and select the OpenSSL application from the available options;
- Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening PEM files.
Choose an app to open a file on Mac
- Right click or use Control + left click on the desired PEM file to launch the file options menu;
- Select "Open in application" and click "Other";
- Look towards the bottom of the window, where you will find the "Enable" menu. "Recommended programs" will be the default selection;
- Choose "All Programs" in this menu and search for OpenSSL. Check the box next to "Always open in app" to set it as the default option.
Effective solutions for PEM file problems
Problematic PEM files can usually be resolved by making small changes in your software. See the tips below to help fix common issues.
What Causes OpenSSL to Crash Frequently?
OpenSSL crashes can be attributed to outdated software. Make sure you have installed the latest updates for developer products.
Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.
How can I restore a damaged PEM file?
Use a recovery program to open the damaged PEM file and navigate to the "Repair" menu item. Please be patient while the recovery process completes, which will automatically restore the damaged web files.
What are the signs that my PEM file is damaged?
Common indications of damaged PEM web files are:
- Editing the archive in OpenSSL results in slow or unresponsive behavior;
- The file causes OpenSSL or other programs to hang or crash during operation;
- Attempts to open the file result in errors or failed results;
- Unexplained increase in PEM file size;
- Working with the file triggers the display of error messages;
How to edit a PEM file?
To edit PEM files, it is essential to install software that supports not only viewing but also editing the web files. Online PEM editors provide limited functionality compared to full-featured software for Privacy Enhanced Mail Certificate.
Best PEM editors in 2026
Based on the specified criteria, here is a list of PEM editors that may fit your requirements.
| PEM Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| OpenSSL | - | Windows, Mac OS, Linux | 4.4 out of 5 (45 reviews) |
Convert to and from PEM
If working with a PEM file is challenging, one solution is to convert it to formats like PES, JEF, PEC or other supported formats.
Keep in mind that converting a PEM file may introduce some limitations, but the original format can often be restored.