MIME Type & File Extension Directory
Search and discover standard MIME types (Content-Type) for web assets, media, fonts, and documents.
About This Tool
MIME Type Lookup connects file extensions (.png, .wasm, .json, .pdf) with official IANA Media Types, providing correct Content-Type header values for web servers and API endpoints.
Key Features
Bidirectional search (Extension <-> MIME Type)
Categorized by Media Type (Audio, Video, Image, Font, Application, Text)
Covers modern web formats (AVIF, WebP, WASM, WOFF2)
How to Use This Tool
- Search by file extension (e.g. .webp, wasm) or MIME type (e.g. video/mp4).
- Filter by category (Application, Image, Text, Audio, Video, Font).
- Copy the exact MIME string to configure web server content types.
Why Use This Tool
- Prevent browser download glitches and CORS issues caused by incorrect Content-Type response headers.
- Comprehensive catalog of modern web formats including AVIF, WebP, WOFF2, and WebAssembly.
Pro Tips
- Always serve WebAssembly files with 'application/wasm' to enable WebAssembly.instantiateStreaming compilation in browsers
Frequently Asked Questions
What happens if a server sends the wrong MIME type?
If a server serves JavaScript as text/plain or WebAssembly as application/octet-stream, modern browsers with nosniff enabled will block execution for security reasons.
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