MIME Type Lookup
Runs entirely in your browser
Search by file extension or MIME type to find the matching value.
No matching file types.
What is a MIME Type?
A MIME type (media type) tells a browser, server or application what kind of content a file contains — like text/html for a web page or image/png for a PNG image — independent of the file's name or extension. Servers send it in the Content-Type header of every HTTP response.
How to use MIME Type Lookup
- Type a file extension (like .json) or part of a MIME type (like image/).
- Browse the matching results.
Features
- Search by file extension or MIME type.
- Covers documents, images, audio, video, fonts and archives.
- 100% client-side — nothing is sent to a server.
Tips
- A file's extension doesn't have to match its real content — renaming
photo.pngtophoto.jpgdoesn't turn it into a JPEG, and some servers sniff the actual bytes rather than trusting the file name. - Several extensions share one MIME type on purpose:
.jpgand.jpegboth map toimage/jpeg, and.yamland.ymlboth map toapplication/yaml— either extension is correct. - Browsers use the
Content-Typeresponse header, not the URL's file extension, to decide how to handle a response — an API returning JSON with the wrong Content-Type can cause a browser or fetch client to treat it as plain text instead of parsing it.
Is MIME Type Lookup safe?
Yes. The full list of file extensions and MIME types ships with the page and is filtered locally in your browser as you type — there's no file to upload, no search query sent anywhere, and no account required.
Frequently Asked Questions
What is a MIME type?
A MIME type (or media type) tells a browser or application what kind of content a file contains, such as text/html or image/png, independent of its file extension.
Can I search by file extension or MIME type?
Both. Search "pdf" to find application/pdf, or search "json" to find both the .json extension and the application/json type.
Is this list complete?
It covers the most commonly used file types on the web — documents, images, audio, video, fonts and archives. Obscure or vendor-specific types may not be listed.