Do you upload my GIF?
No. Decoding, editing, and re-encoding all happen locally in your browser — the file never leaves your device.
GIF Compressor — Compress GIF Online Free, No Upload | CutFast
Compress GIF files locally in your browser. Reduce colors and drop frames to shrink file size — no uploads, no watermark, no signup.
Frequently asked questions
Why did my GIF get bigger after editing?
Re-encoding rebuilds every frame with a fresh palette. If the original was heavily optimized, try fewer colors or frame dropping to shrink it back.
Is there a file size or frame limit?
There is no hard limit, but very large GIFs with hundreds of frames take longer and use more memory since everything runs on your device.
Does transparency survive the edit?
Yes. Transparent pixels are detected and preserved in the re-encoded GIF.