Developer Tools
Look up the MIME type for any file extension or search a curated media type database. Includes Content-Type header, aliases, charset, and IANA status.
application/*
JavaScript Object Notation. The default payload format for most modern REST and HTTP APIs.
Suggested Content-Type
Content-Type: application/json
Download disposition
Content-Disposition: attachment; filename="file.json"
Browse 126 matches
Click a card to see the details above
application/*
Arbitrary data, executables, archives, structured documents, and most JSON/XML payloads.
text/*
Human-readable text. May carry a charset parameter.
image/*
Bitmap and vector still images.
audio/*
Audio recordings and streams.
video/*
Video recordings and streams.
font/*
Font files. font/* was registered in 2017 (RFC 8081).
multipart/*
Composite bodies containing several parts with boundary markers.
message/*
Encapsulated messages such as email or HTTP request bodies.
model/*
3D models, scenes, and geometry.
Anatomy of a MIME type
A MIME type (also called media type) is type/subtype[+suffix][;parameter=value]. The top-level type names the broad category, the subtype names the specific format, the optional structured suffix shows the underlying encoding, and parameters such as charset or boundary attach extra detail.
Common pitfalls
MIME Type Lookup is a searchable database of common media (MIME) types and the file extensions they ship with. Type a file extension (pdf, docx, webp, mp4, csv), a full MIME string (image/jpeg, application/json, audio/vnd.wave), or any keyword from a description (manifest, archive, font, calendar) to find the canonical IANA name, the structured suffix when one is present (+json, +xml, +zip), the file extensions normally bound to that type, any aliases that show up in the wild (image/jpg, audio/wav, text/xml), whether the type takes a charset parameter, the IANA registration status (registered, provisional, vendor tree, x-prefix, deprecated), and the RFC or vendor reference. The selection card shows the exact Content-Type header to send (with charset=utf-8 added for text/* responses) and a suggested Content-Disposition header for downloads, both with one-click copy. Use it when configuring nginx, Apache, Caddy, or IIS to serve a new file type, when setting Content-Type on an upload, API response, or download, when validating an accept= or multipart/form-data list, when decoding a data: URL, or when checking which RFC defines a given format. Everything runs locally in your browser; no extension or file you type is sent anywhere.
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