What does this tool do?
Map a file extension or MIME type to its MIME type, common extensions and media category locally. Inputs: File extension or MIME type. Outputs: MIME type, Common extensions, Media category.
How to use it?
Enter file extension or mime type, then choose “Lookup”. Clear removes inputs and results and restores initial options.
Processing is local. Entered URLs are data: they are not visited, uploaded, logged or placed in the route. Generated markup is inert text. Reference lookups use bundled data, and previews are illustrative rather than guaranteed platform output.
Curated mapping, not an exhaustive registry or proof of file contents. No file inspection or remote access.