Online Tool Store
MIME Type Lookup
Search a reference table of common file extensions and their MIME types, live as you type, entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Search by extension (e.g. "pdf", ".json") or part of a MIME type (e.g. "image/").
| Extension | MIME type |
|---|
How the MIME type lookup works
- Type a file extension (like "pdf" or ".json") or part of a MIME type (like "image/").
- Matching entries from a reference table of common file types are shown instantly.
- Clear the search to see the full reference list.
FAQ
What is a MIME type used for?
MIME types tell a browser, email client, or server what kind of content a file contains, independent of its filename — used for things like setting the correct Content-Type HTTP header, or validating file uploads by type.
Why do some extensions have more than one possible MIME type?
A few formats have evolved multiple accepted MIME types over time (older and newer conventions), or the "correct" type is genuinely ambiguous depending on context — this list uses the most current, widely-accepted value for each.
Can I search by MIME type instead of extension?
Yes — search for a fragment like "image/" or "application/" to see every extension that maps to MIME types containing that text.
Is my search sent anywhere?
No. This is a static reference list searched entirely in your browser — nothing is sent to Online Tool Store or any other server.
How we compare
| Feature | Online Tool Store | MDN MIME types reference page | Searching a static list manually |
|---|---|---|---|
| Instant live search | ✓ | Ctrl+F only | Manual scanning |
| Search by extension or MIME type | ✓ | ✓ | Manual scanning |
| No ads | ✓ | ✓ | Varies |
For a quick MIME type lookup with live search, the Online Tool Store MIME Type Lookup gets you the answer without scanning a long reference page.