Crop an animated GIF and make the file dramatically smaller.
Crop an animated GIF to the region that matters and cut its file size without turning it into a blurry mess. The optimizer reduces the color palette and frame rate with a live preview of the animation and the resulting size.
GIF decoding, cropping, and re-encoding all happen locally in your browser — the animation is never uploaded, and every frame is preserved in sync.
Animated GIF in · optimized GIF out
No. Everything runs locally in your browser using the Canvas and File APIs. Your files are never uploaded to a server, and nothing is stored after you close the page.
Mainly by reducing the color palette (GIFs store up to 256 colors per frame) and by lowering the frame rate. Cropping away unused edges also shrinks every frame.
Yes. Every frame is cropped identically and re-timed correctly, so the loop plays exactly like the original — just smaller.
It depends on the source. Reducing colors from 256 to 128 and trimming the frame rate typically cuts 30–70% of the size with little visible difference.
Not in this tool — it keeps GIF as GIF so the file works everywhere GIFs do. For video files, use the Video crop tool.