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MIME Type

image/gif

Image

MIME type for GIF images, including animated GIFs.

MIME type reference, HTTP example, browser usage, common mistakes, and related content.

What is the image/gif MIME type?

The MIME type image/gif is used to tell browsers, APIs, and servers how a file or response body should be interpreted.

MIME stands for Multipurpose Internet Mail Extensions, and MIME types are now a standard part of HTTP responses and web content delivery.

When a browser or client receives a response with image/gif, it uses that information to decide how the content should be processed, rendered, downloaded, or executed.

Example

Content-Type: image/gif

HTTP example

HTTP/1.1 200 OK
Content-Type: image/gif
Content-Length: 1256

Common file extensions

.gif

Common use cases

  • Animated graphics
  • Simple web images
  • Legacy visual assets

Common mistakes

  • Using the wrong MIME type for the file being served
  • Returning text/plain instead of image/gif
  • Forgetting required parameters like charset when relevant
  • Using a deprecated MIME type in older server configurations
  • Serving assets with a mismatched Content-Type header, causing browser parsing issues

How browsers use it

Browsers use the Content-Type response header to decide how a response should be handled. For example, HTML is rendered as a page, CSS is parsed as styles, JavaScript is executed as script, and images are displayed visually. If the MIME type is incorrect, the browser may refuse to load the file correctly or may treat it as plain text or a download instead.

Browser support

Very broad browser support, including support for animated GIFs.

Developer note

Still very common online, especially for simple animations and memes.

Related MIME types