Extension → MIME Type
Examples: .png, jpg, json
MIME Type Lookup
Convert file extensions to MIME types and MIME types to common extensions instantly. Built for developers, SEO teams, and anyone handling Content-Type headers.
MIME Type → Extension
Examples: application/pdf, image/webp
Popular MIME Types
| Extension | MIME Type | Description | Copy |
|---|
FAQ
What is a MIME type?
A MIME type (Multipurpose Internet Mail Extensions type) tells browsers and APIs what format a file is, such as text/css or application/json.
Why are MIME types important?
Correct MIME types help browsers render files properly, improve security behavior, and prevent upload/download issues in web apps and CDNs.
Can one MIME type have multiple extensions?
Yes. For example, image/jpeg commonly maps to both .jpg and .jpeg. This tool returns the most common extension.
Does this tool store my queries?
No. Everything runs client-side in your browser with no server-side processing.