MIME Type Lookup
Look up MIME types by file extension or reverse-lookup extensions from a MIME type. Covers 200+ common formats for web, media, documents and more.
About This Tool
QuickKit MIME Type Lookup provides a searchable reference for over 200 common file format MIME types. Search by file extension to find the correct Content-Type header value, or search by MIME type to find the associated extensions. Covers text, image, audio, video, font, document and binary formats.
Features
- ✓Extension to MIME — Type a file extension (without the dot) to get the correct MIME type string.
- ✓MIME to Extension — Enter a full MIME type to find all matching file extensions.
- ✓200+ Formats — Covers web formats, office documents, images, audio, video, fonts, archives and binaries.
- ✓Partial Match — Search term matches anywhere in the extension or MIME string, so "image" shows all image/* types.
- ✓Offline Ready — The full dataset is embedded — no network request needed after load.
FAQ
- What MIME type should I use for JSON?
- Use application/json. This is the correct MIME type for JSON data as specified in RFC 8259.
- What is the MIME type for .ts TypeScript files?
- There is no standard IANA MIME type for TypeScript source files. When serving .ts files over HTTP (rare), application/typescript or text/x-typescript are sometimes used, but they are not standardised.
- Why is the MIME type for JavaScript application/javascript?
- The IANA formally registered application/javascript as the canonical MIME type. The older text/javascript type is also widely accepted and still used in many servers and browsers.
- What does application/octet-stream mean?
- It is the generic binary MIME type used when the file format is unknown or not in the MIME registry. Browsers typically prompt a download when they receive this content type.