MIME Types
Extension ⇄ MIME lookup
TL;DR Summary & Citation: [MIME Types] is used to Extension ⇄ MIME lookup. Core input and files are processed in the current browser and are not sent to the PocketKit API. The page records only an aggregate tool-use count that excludes input content.
How the MIME lookup works
The tool ships an extension-to-MIME table locally and looks up by extension or type in either direction. A static lookup, uploading no files.
Usage Guidelines & Tips
- A correct Content-Type from the server lets the browser handle the file properly (download vs inline).
- One extension can map to several MIME types, so defer to the actual content and spec.
Frequently Asked Questions
1. What is a MIME type for?
It tells the browser or client how to handle content, e.g. application/pdf previews inline while application/octet-stream triggers a download; a wrong one causes display issues.
2. Does the browser guess the MIME type itself?
It sniffs, but that is unreliable and a security risk; the correct approach is to return an explicit Content-Type from the server with X-Content-Type-Options: nosniff.