MIME type - MDN Web Docs Glossary: Definitions of Web-related terms 编辑

A MIME type (now properly called "media type", but also sometimes "content type") is a string sent along with a file indicating the type of the file (describing the content format, for example, a sound file might be labeled audio/ogg, or an image file image/png).

It serves the same purpose as filename extensions traditionally do on Windows. The name originates from the MIME standard originally used in E-Mail.

Learn more

General knowledge

• Internet media type on Wikipedia

Technical reference

• List of MIME types
• Properly Configuring Server MIME Types
• Details information about the usage of MIME Types in a Web context.
• Incomplete list of MIME types
• How Mozilla determines MIME Types
• MediaRecorder.mimeType