Use this free unlimited PEM to DER Cryptographic Format converter tool to quickly convert your PEM files to DER in bulk.
How to use the PEM to DER File Converter Tool
This free, unlimited PEM to DER file converter is simple, fast, privacy-focused, requires no email address to use, and does not use watermarks. Convert your files in bulk while never having to worry about your privacy. Your files are converted in the web browser without our server ever knowing about them, making ConvertSimple.com's file converter the most privacy-conscious tool on the web.
- Upload your PEM files by dragging and dropping them into the box at the top, or by clicking
Select Files to Convert. - You can change what type of file you want to convert your PEM files to by changing the Convert to option near the top of the page.
- Click the Convert button to begin the bulk PEM to DER conversion.
- The files will be converted. You can download the converted files individually or click Download All to download a ZIP file with all of your converted DER files.
- Your files are secure. ConvertSimple's file converter does not send your files to our servers for conversion, the process is done completely in your web browser. That's what makes ConvertSimple's file converter the safest, fastest, unlimited free file converter out there.
Conversion library used: ImageMagick
PEM Format
| Name | PEM |
| Full form name | Privacy-Enhanced Mail |
| File extension | .pem, .crt, .cer |
| Type of format | Cryptographic Format |
| MIME type | application/x-pem-file |
DER Format
| Name | DER |
| Full form name | Distinguished Encoding Rules |
| File extension | .der, .cer |
| Type of format | Cryptographic Format |
| MIME type | application/x-x509-ca-cert |