How to convert AVI to GIF online
- 1
Drop your AVI file
Drag your Audio Video Interleave file onto the box above, or click it to pick a file.
- 2
Wait while it converts
Conversion starts on its own and runs on your device, not on a server. Video takes roughly as long as the clip plays, so keep the tab open.
- 3
Download your GIF
Click Download to save the Graphics Interchange Format file.
AVI vs GIF: format overview
Audio Video Interleave
Microsoft · 1992
- Compression
- lossy
- Transparency
- No
- ✓ Universal Windows compatibility
- ✓ Simple container format — widely supported
- ✗ Large file sizes (minimal compression)
Graphics Interchange Format
CompuServe (Steve Wilhite) · 1987
- Compression
- lossless
- Color depth
- 8-bit
- Transparency
- Yes
- ✓ Universal animation support in browsers
- ✓ Supported everywhere including email clients
AVI magic bytes: 52 49 46 46 xx xx xx xx 41 56 49 20
GIF magic bytes: 47 49 46 38 39 61
Why convert AVI to GIF?
AVI files are a legacy Windows video format that has been around since the early 1990s. They appear frequently as output from older screen recording tools, vintage editing software, surveillance systems, and hardware encoders that have not been updated in years. While VLC can play AVI files, modern platforms like Slack, Discord, Google Chat, and most content management systems either reject AVI uploads outright or require additional codecs that users may not have installed.
GIF solves the sharing problem immediately. Short clips extracted from AVI files and converted to GIF can be pasted into chat threads, embedded in documentation sites like Confluence or Notion, used as tutorial animations on a help center, or included in email newsletters without any compatibility concerns. Tools like GIPHY and Tenor also accept GIF uploads, making it easy to build a shareable animation library from older video content.
The technical trade-offs of GIF are worth understanding before converting. AVI files often contain audio, which GIF cannot store, so sound will be lost in the conversion. Color depth drops to 256 colors per frame, which introduces visible banding in photographic video but is generally acceptable for screen recordings and simple animations. To keep file sizes reasonable, clip length should be kept short, ideally under eight seconds. The converter makes the GIF 480 pixels wide at 15 frames per second, which is rarely noticeable and keeps the file far smaller.
Quality & file size: AVI to GIF
Typical sizes: AVI 200–600 MB (1 minute 1080p); GIF 5–50 MB (animated clip (3s)).
Frequently asked questions
How large can my video files be?
Your AVI file never leaves this tab — FormatDrop has no endpoint that receives file data. How it works