Find MIME types and file extensions.
The MIME Type Lookup & Extension Finder is a comprehensive networking and web development reference tool that cross-references file extensions with official IANA Media Types (Multipurpose Internet Mail Extensions). Covering over 100+ file formats across documents (PDF, DOCX), archives (ZIP, TAR, GZ), audio/video streams (MP4, WebM, MP3), images (PNG, WebP, SVG, AVIF), web fonts (WOFF2), code assets (JS, TS, CSS), and structured data (JSON, XML, CSV). Essential for setting correct HTTP Content-Type headers and configuring web servers.
A MIME type (Media Type) is a two-part identifier (e.g., text/html, application/json) sent in the HTTP Content-Type header to instruct browsers how to render or download transferred files.
If a server sends an incorrect Content-Type (such as text/plain for CSS or JavaScript), modern browsers may refuse to execute the asset due to strict MIME-type checking (X-Content-Type-Options: nosniff).
Yes. The database includes modern image formats (image/webp, image/avif), modern font formats (font/woff2), and streaming media formats.
Yes. All media type definitions conform to official IANA (Internet Assigned Numbers Authority) and RFC specifications.
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