MIME Type Checker
Type a filename or file extension and instantly see the corresponding MIME type from a built-in lookup table covering over 80 common file formats. The tool identifies the MIME type, its broad category (image, audio, video, text, application, font), and whether the format is text-based or binary.
The lookup table covers web formats (HTML, CSS, JS, JSON, XML, SVG, WASM), images (PNG, JPEG, GIF, WebP, AVIF, TIFF, ICO), documents (PDF, DOCX, XLSX, PPTX, ODT), archives (ZIP, TAR, GZ, 7Z, RAR), audio and video (MP3, WAV, OGG, MP4, WebM, AVI), code files, and more.
Useful when configuring Content-Type headers, setting up web server MIME mappings, or debugging file upload handlers. Everything is instant and runs in your browser with no network requests.
By The Paper Room Editorial Team — Developer Tools
Frequently asked questions
How many file types are supported?▼
The built-in lookup table covers over 80 common file extensions across web, image, document, audio, video, archive, code, font, and data categories.
What if my extension isn't in the list?▼
The tool shows 'Unknown extension' for file types not in its built-in database. It covers the most common formats, but very specialized or proprietary extensions may not be included. The fallback MIME type in such cases would typically be application/octet-stream.
Is the MIME type the same as the Content-Type header?▼
The MIME type is the core value used in the Content-Type header. The header may also include parameters like charset (e.g., text/html; charset=utf-8), but the MIME type itself is the type/subtype portion.