Software Developers is the central file extensions registry. On this site, millions of users access verified information about files found on their computers or mobile devices, as well as the software and developers associated with each file type. If you are a software developer, you can register your file extensions and associated file types with us. Once confirmed by our team, your file type information will be listed on this site.

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Submit Your File Type

If your file type is not yet listed on, please click the button below to add a new file type to our database.

Add a File Type

Update Your File Type

If your file type is already listed in the database and you would like to update the information, please click the button below.

Update a File Type


When submitting new file types to, please provide as much information as possible. We ask that you include the following information:

  1. File extension
  2. Name of the associated file type
  3. Description of the file
  4. Names of program(s) that open or reference the file

When writing the description, please include the purpose of the file and what information the file contains. You can also submit icons for the related file type and application, which we will include with the entry.

All submissions are reviewed by the team before being published on the website. Once we verify the information, we will add or update the file extension entry and let you know when the information has been published.


If you have any questions about registering file types or general questions about, please let us know.