MIME Type Lookup
Translate between file extensions and MIME types in both directions. Type `.png` and learn it's `image/png`; type `application/vnd.openxmlformats-officedocument.wordprocessingml.document` and learn it's `.docx`. The lookup table covers images, audio, video, text, documents (Word, Excel, PowerPoint, OpenDocument, PDF, EPUB), archives, fonts, web manifest types, certificates, and the generic application/octet-stream catch-all.
Privacy
Runs entirely in your browser — nothing is sent to any server.
Cost
Free. No sign-up, no watermark.
Type
Reference
Related tools
Tools that work with the same formats — most users open one of these next.
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Frequently asked
Is MIME Type Lookup free to use?
Yes. MIME Type Lookup is completely free with no sign-up, no watermark, and no usage limits. Toolsly does not charge for any of its tools.
Do my files and data stay private?
Yes — MIME Type Lookup runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.
How does MIME Type Lookup work?
Open MIME Type Lookup, paste or fill in the input fields, and the result updates instantly. Everything runs in your browser — no upload, no waiting.
Which browsers does MIME Type Lookup support?
Any modern browser works — Chrome, Firefox, Safari, and Edge on desktop and mobile. MIME Type Lookup uses standard web APIs and does not require any plugin, extension, or sign-up.