GIFs can hold up to 256 colors, but most animations look fine at 64–128. Reducing the palette is one of the best compression techniques for GIFs.
Upload your GIF
Go to GifMash and upload your GIF. The tool will display the original dimensions and file size.
Use the Quality slider to reduce colors
Drag the Quality slider to 60–79% to reduce to 128 colors, or 40–59% to reduce to 64 colors. GifMash automatically adjusts the palette.
Preview and download
Compare the before and after visually. If artifacts appear, increase the quality level slightly and re-compress.
Reduce GIF colors
The Quality slider automatically reduces colors to the right level for your target.
Up to 256 per frame — the GIF format uses an indexed palette limited to 256 entries.
Yes — most GIFs look identical at 128 colors. Gradients and photos degrade faster than flat cartoons.