Developer Tools

MIME Type Lookup for Content-Type Mapping

Look up file extensions and MIME Content-Type values locally in your browser. Covers common formats for server config, upload checks, and API debugging.

MIMELookup

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Quick actions

Copy this tool URL or open the system share sheet on a supported device.

Use cases

  • Configure Nginx static type mappings
  • Verify accepted upload MIME types
  • Confirm which Content-Type an extension should use

How to use

  1. Enter an extension or MIME type
  2. Review matching results
  3. Copy the Content-Type you need

Example input and output

Extension

.json

MIME

application/json

FAQ

How complete is the built-in table?

It covers mainstream everyday formats. Rare or vendor-specific types may be missing.

Can one extension map to multiple MIME types?

A few formats have historical aliases. The tool shows its built-in mapping; custom server rules still win when they differ.

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