IT Consulting
Illustration of file extensions .webp, .json, and .pdf resolving to their MIME types next to a search box

MIME Type / Content-Type Lookup

Search by extension or MIME type (try .webp or "image"). Each result includes the exact Content-Type header value to send — text-based types get ; charset=utf-8, binary types don't. Runs entirely in your browser — the full list is embedded on the page.

ℹ️ About this list
  • Covers the file extensions someone doing web/DevOps work actually runs into — not exhaustive (there are hundreds of registered MIME types).
  • Search matches the extension, MIME type, and category, so typing "image" surfaces every image format at once.
  • The Content-Type line is the exact header value to send: text-based types (HTML, CSS, plain text, CSV, etc.) get ; charset=utf-8 appended, since text needs an explicit encoding; binary types (images, fonts, archives, etc.) don't take a charset parameter at all.
  • Runs entirely client-side — nothing you type here is ever sent anywhere.
💻 Show API usage examples (cURL)

Look up a single extension:

curl -sS https://devops.majbase.com/mime-lookup/api/extension/webp

Returns {"extension": ".webp", "mime_type": "image/webp", "category": "Image", "content_type_header": "image/webp"}, or a 404 with {"error": "..."} if it's not in the list. The leading dot is optional.

List every entry, or filter by keyword:

curl -sS https://devops.majbase.com/mime-lookup/api
curl -sS "https://devops.majbase.com/mime-lookup/api?q=image"

Returns a JSON array of matching entries in the same shape as above.