MIME Type Lookup
Look up the MIME content type for any file extension and vice versa.
Search by extension (e.g. .webp) or by type (e.g. image/). Runs in your browser.
Frequently asked questions
What is a MIME type?
A MIME type, also called a content type, is a label like text/html or image/png that tells software what kind of data a file contains. Browsers and servers use it to decide how to handle a file.
How do I find the MIME type for a file extension?
Enter the file extension, such as pdf or svg, and the tool looks it up in its built-in table and returns the matching content type. You can also search by type to find extensions.
Can I search by MIME type instead of extension?
Yes. You can type a content type or part of one to find the file extensions associated with it, so the lookup works in both directions.
Where does the MIME data come from?
The tool uses a built-in reference table bundled with the page, so lookups are instant and work without contacting any server. Nothing you enter is uploaded.
Why does one extension sometimes map to more than one type?
Some extensions are used for multiple formats or have both official and common content types, so more than one answer can be valid. The tool shows the widely recognised mapping.
Why does the MIME type matter for serving files?
Sending the correct content type tells the browser whether to display, download or execute a file, and a wrong type can cause files to render incorrectly or downloads to misbehave. It is important for correct web delivery.
Is the extension I type sent anywhere?
No. The lookup runs locally against the built-in table in your browser, so your input never leaves your device.