GIF (Graphics Interchange Format)
GIF is a bitmap image format best known for supporting simple animations. It uses lossless LZW compression but is limited to a 256-color palette per frame. GIF remains popular for short animated clips, reaction images, and simple graphics.
MIME Type
image/gif
Type
Binary
Compression
Lossless
Advantages
- + Native animation support without JavaScript
- + Universal browser support since the 1990s
- + Simple 1-bit transparency
Disadvantages
- − Limited to 256 colors per frame
- − Large file sizes for animations compared to video
- − No alpha transparency (only on/off)
When to Use .GIF
Use GIF for simple animations, reaction images, and small graphics with limited colors. For photographs, prefer JPEG or WebP.
Technical Details
GIF uses LZW compression with a maximum palette of 256 colors per frame. Animation is achieved by storing multiple frames with per-frame delay and disposal settings.
History
GIF was introduced by CompuServe in 1987 and became one of the first image formats used on the web. The animated GIF variant (GIF89a) was released in 1989.
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