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About FileInfo

FileInfo contains a searchable database of over 10,000 file extensions with detailed information about the associated file types. You can look up information about unknown file types and find programs that open the files.

Since 2005, the FileInfo team has worked with developers, large and small, to create a central file extensions registry. FileInfo.com has become the authoritative website where developers can submit new file extensions and provide information about file types. If you are a developer, you can easily register your file extensions with us.

Software

FileInfo now contains descriptions and reviews of hundreds of software programs as well. Visit the Software section to browse a list of programs. Each software page includes a review of the application, a list of program features, and a list of supported file types.

Using FileInfo

You can look up file extensions and software programs using the search box on the top of each page. You can also use the Advanced Search feature to search the entire website. If you have file-related questions, there is a good chance you'll find the answer in the Help Center. For example, you can learn more about file extensions and how they are used by reading the "What is a File Extension?" help article.