This example resizes an 800×600 GIF to 200×150 and reduces it from 3.5 MB to 0.8 MB. Other animations can produce different savings depending on their frames, motion, and colors.
Resize every frame of an animated GIF to new pixel dimensions. The source frame-delay values are passed through when the browser rebuilds the GIF, but downscaling can soften detail and file-size savings vary by animation. Large files may need more browser memory.
The source frame-delay values are passed to the encoder, so resizing changes frame dimensions rather than setting a new playback speed.
Smaller dimensions often reduce file size, but results vary with the number of frames, motion, colors, and source encoding. There is no target-size guarantee.
Yes. Leave Lock aspect ratio selected while editing width or height. Turn it off only when you intentionally want independent dimensions.
No. Resize GIF downloads an animated GIF. Use an image conversion tool for another format or a still image.
The browser decodes and resizes every frame locally. Many frames or large source dimensions can require more time and available device memory.