What This Tool Does
This tool looks up the MIME type for a file extension or the file extension for a MIME type, drawing from a database of over 100 common file formats across images, audio, video, text, application, font, and 3D model categories. Search by typing, or drop a file directly to detect its actual browser-reported MIME type.
How to Look Up a MIME Type
Type a file extension, a MIME type, or a full filename into the search bar, or drag a file onto the page. A matching result appears as a card showing the MIME type, its extensions, category, and other metadata. The table below the search bar lists every entry in the database and can be filtered by category or the same search text.
Searching by Extension, MIME Type, or Filename
The search accepts several formats: a bare extension like png or .png, a full MIME type like image/png, or a filename like photo.jpg, the extension is extracted automatically. Dropping a file instead uses the browser's own File.type detection when available, falling back to the file's extension if the browser doesn't report a type.
What Compressible and Encoding Mean
Compressible indicates whether the format benefits from further compression, like gzip, over the network, text-based formats usually do while already-compressed binary formats like JPEG or ZIP usually don't. Encoding shows whether the format is fundamentally text-based or binary, which matters when deciding how to read, transmit, or store a file.
Common Uses for a MIME Type Lookup
Setting the correct Content-Type header for an HTTP response or file upload, checking what MIME type a browser or server expects for a given file extension, and quickly recalling a less common MIME type like a font or 3D model format are all common reasons to look up a MIME type. It works as a file extension to mime type and mime type to extension converter in one search bar, useful whenever you're asking what mime type is this file, need a mime type checker online, a content type lookup tool, a browsable mime type database, or a general file type mime lookup to check mime type online for the mime type for file extension you have on hand.