Convert.Guru

DER Converter

Convert DER files online for free


Drop or upload your .DER file

How to convert your DER file

  1. Click Select File above, and choose your DER file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.


Convert DER to another file type

The converter easily converts your DER file to various formats—free and online. No Excel or extra software needed.

  • DER to PEM
  • DER to CER
  • DER to JKS
  • DER to HTML
  • DER to HTM
  • DER to CSS
  • DER to JS
  • DER to PHP
  • DER to ASP
  • DER to ASPX
  • DER to JSP
  • DER to JSPX

Convert a file to DER

The converter also works in reverse, allowing you to convert your file into the DER file type—in the best quality.

  • RSS to DER
  • CSS to DER
  • CGI to DER
  • SITEMAP to DER
  • PL to DER
  • WEBMANIFEST to DER
  • JSON to DER
  • JS to DER
  • XML to DER
  • HTML to DER
  • ICO to DER
  • HTM to DER

About DER files

DER (Distinguished Encoding Rules) is a binary format for encoding data objects in a structured way. It is commonly used to store digital certificates and keys in a secure format. It is not a widely used file format and is not easily readable by humans. It is also not supported by many applications.

The most common way to convert a DER file is to use a program such as OpenSSL or GnuPG. These programs can convert DER files to formats such as PEM (Privacy Enhanced Mail), PFX (Personal Information Exchange), and P7B (PKCS #7 Certificate).

When converting a DER file, it is important to consider the security of the data. DER files are often used to store sensitive data, and it is important to ensure that the converted file is secure. Additionally, DER files can be difficult to convert due to their binary format, and the process can be time-consuming and complicated.

For these reasons, it is often easier to use an online service such as Convert.Guru to convert DER files. Convert.Guru offers a free and easy-to-use website for converting DER files to other formats.


The DER Converter Story

The history of Convert.Guru began more than 25 years ago in California, when Tom Simondi published the most comprehensive database of file formats on his website. Before that, Tom had worked on Space Shuttle development at the Air Force Systems Command’s Space Division in Los Angeles. He is known as one of the top programmers of the late 1980s.

When Microsoft integrated Tom’s Filext database into Windows XP, it became the leading platform for analyzing and processing file types and formats.

Today, we use the latest technologies to analyze, process, and convert one of the world's largest collections of file formats. We are committed to developing the best DER converter by continuously improving quality, usability, and reliability.

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