Is this file extension reference free?

Yes, completely free with no signup and no usage limits.

Does my data leave my device?

No. The entire extension database is embedded in the page and searched locally in your browser.

Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.

File Extension List

Search 150+ file extensions to find MIME types, categories, and programs that open them.

100% client-side · no upload

Search extensions or descriptions

Extension	Description	MIME type	Category	Opens with

Type a file extension (e.g. svg) or a keyword (e.g. audio) in the search box.
The table filters in real-time to show matching extensions.
Click the MIME type column to copy it to your clipboard.

Is this file extension reference free?: Yes, completely free with no signup and no usage limits.
Does my data leave my device?: No. The entire extension database is embedded in the page and searched locally in your browser.
Does it work on mobile?: Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.