快速参考
About MIME Type Checker
Configuring web servers or handling file uploads requires knowing the correct MIME type. Our free online MIME Type Checker provides a searchable database to instantly find the standard content type for any file extension.
How It Works
The tool queries a comprehensive, up-to-date JSON database of IANA-registered MIME (Multipurpose Internet Mail Extensions) types. You can search by file extension (e.g., '.json') or by the MIME type itself (e.g., 'application/json').
Common Use Cases
- Setting the correct 'Content-Type' header for API responses
- Configuring Nginx or Apache servers to serve static files correctly
- Validating file uploads in web applications by checking their MIME type
- Understanding how browsers interpret different file formats
Frequently Asked Questions
A MIME type is a standard identifier used on the internet to indicate the nature and format of a document, file, or assortment of bytes. It tells the browser how to process the data.
If a server sends a CSS file but sets the Content-Type to 'text/plain', the browser will refuse to apply the styles. The MIME type ensures the browser handles the file securely and correctly.