What is MIME Type Lookup Tool Online?
MIME types tell browsers and servers how to handle file content. Every HTTP response includes a Content-Type header with the MIME type. Incorrect MIME types cause broken downloads, security warnings, and rendering failures.
How to Use MIME Type Lookup Tool Online
- Search by file extension (e.g. .pdf, .json) or MIME type (e.g. application/json).
- Copy the correct Content-Type value for your HTTP header.
Frequently Asked Questions
What is application/octet-stream?
The generic binary MIME type — tells the browser to treat the response as an unknown binary and prompt a download dialog.