Free MIME Type Lookup
Look up the MIME type for a file extension, or search by MIME type to find its extensions — instantly in your browser.
How to look up a MIME type
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1
Type an extension or MIME type
Enter a file extension like .svg, or part of a MIME type like text/.
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2
Review the matches
Matching extension ↔ MIME type pairs appear instantly as you type.
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3
Use the value you need
Copy the extension or MIME type into your code, config, or HTTP header.
Example use cases
Setting a Content-Type header
Find the correct MIME type to send in an HTTP response or API request for a given file type.
Restricting a file upload input
Look up the right MIME type or extension to use in an `accept` attribute or server-side upload validation.
Debugging a "wrong file type" error
Check whether the MIME type your app expects actually matches the extension of the file being uploaded.
Frequently asked questions
What is a MIME type?
A MIME type (also called a media type or content type) is a standardized string like "application/json" or "image/png" that tells a browser, server, or email client what kind of data a file contains, so it knows how to handle it.
Can I look it up by extension or by MIME type?
Both. Type a file extension (e.g. .csv) to see its MIME type, or type part of a MIME type (e.g. image/) to see every matching extension.
Where would I use this?
Common spots are the "Content-Type" header in an HTTP response, the "accept" attribute on a file ``, or an "enctype"/"type" field in an API request or config file.
Is my input uploaded anywhere?
No. The lookup runs against a local list in your browser — nothing you type is sent to a server.