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MIME Type Checker

Enter a file extension or MIME type to look up the corresponding type. Supports 160+ common file formats including web, office, media, and archive types.

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How to use MIME Type Checker

  1. Enter a file extension (e.g., .pdf) or MIME type (e.g., application/json).
  2. Click Look Up.
  3. View the matching MIME type or extensions.
  4. Copy the result for your use.

What is MIME Type Checker?

MIME types (Multipurpose Internet Mail Extensions) are standard identifiers for file formats on the internet. They tell browsers and servers how to handle different file types.

This tool provides bidirectional lookup: enter a file extension (e.g., .pdf) to get the MIME type (application/pdf), or enter a MIME type to get common file extensions. Supports partial matching for convenience.

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FAQ

What is a MIME type?
A MIME type is a standard identifier that tells browsers, email clients, and servers how to handle a file. It consists of a type and subtype, like 'text/html' or 'image/png'.
Why are MIME types important?
Correct MIME types ensure browsers display content properly, servers send appropriate headers, and applications handle files correctly.

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Author

MW
Marcus Webb"The DevTool Craftsman"

Full-Stack Developer & Tools Architect

Marcus has been writing code since the dial-up era. He has contributed to open-source developer tools, built CI/CD pipelines for startups, and debugged production incidents at 3 AM more times than he would like to admit. His philosophy is that the best developer tool is the one that gets out of your way, and he writes about practical tooling that helps teams ship faster with fewer headaches.

📖 MIME Type Checker on Wikipedia·Developer Tools on Wikipedia·MIME Type Checker on Britannica

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