MIME Type Lookup Online - Search File Content Types
Look up common MIME types by extension or by a partial content-type value.
About this tool
The local reference covers common web, document, image, audio, video, archive and WebAssembly extensions. An empty query lists every built-in entry.
How to use
- Enter or select the source data.
- Run the tool locally with the required options.
- Review and copy or download the result.
Features
- Extension-to-MIME lookup.
- Partial MIME value search.
- Leading dots are accepted.
Common use cases
- Choose an HTTP Content-Type header.
- Check a common file extension.
- Review MIME values during development.
Common issues and tips
- The table is intentionally concise and does not contain every registered MIME type.
- A matching MIME type does not validate actual file contents.
Privacy
Processing runs locally in your browser. Input and generated output are not uploaded to Tools12345.
Frequently asked questions
Can I enter .json?
Yes, a leading dot is removed.
Does an empty query work?
Yes, it lists the built-in table.
Does this inspect a file?
No.