GIF Resizer

The GIF Resizer scales an animated GIF down to smaller pixel dimensions while keeping the animation playing, processing everything locally in your browser. Smaller dimensions are one of the most reliable ways to cut a GIF's file size because the same frame count covers far fewer pixels, which both reduces raw data and helps compression find more repetition.

The tool decodes each frame, resamples it to the new width and height, then re-encodes the full animation with its original timing. It typically preserves aspect ratio so the result is not stretched, and it re-quantizes colors as needed for the smaller raster. Because GIF is an indexed format, downscaling can subtly shift edge colors, so the tool builds a fresh palette suited to the resized pixels.

Resizing is ideal for fitting GIFs into chat platforms with strict attachment limits, embedding lightweight demos in documentation, generating thumbnails, or meeting the dimension caps some forums and email clients enforce. It is the first tool to try when a GIF is heavy mainly because it is physically large on screen.

For maximum savings, combine a dimension reduction with the GIF Optimizer to also trim the palette, since the two effects multiply. If you only need a still preview, the GIF Frame Extractor can pull a single frame, and when your destination supports modern formats the APNG/WebP Converter often produces a smaller animated file at the same dimensions.