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About GIF Compressor Online
This tool reduces the file size of animated GIFs by reducing color depth, dropping similar frames, and applying lossy quantisation. GIF files for animations on the web are notorious for being large; optimisation can shrink them dramatically without much visible quality loss.
Use it to compress reaction GIFs for messaging apps with attachment limits, optimise GIFs embedded in articles or emails, or trim massive GIF files exported from video editors before sharing them.
For animations under a few seconds, GIF compression is fine. For longer or larger animations, consider converting to MP4 or WebP video, which can be 10-20x smaller at the same visual quality.
How to use this tool
How to shrink a GIF (especially animated ones)
Upload the GIF
Drop a `.gif` file into the "Image" field. Static GIFs and animated GIFs both work; for animated, the frame count, durations, and loop count are preserved.
Press Run
Result returns `bytesIn`, `bytesOut`, `savedPercent`, and the optimised file. Savings come from re-quantising the palette, de-duplicating identical frames, and tighter LZW encoding — not by dropping frames or changing dimensions.
Realistic expectations
Modern GIFs are usually already saved at small palettes (32-128 colours). Re-compression rarely saves more than 5–15%. For dramatic reductions, convert the GIF to MP4/WebM/WebP — those modern codecs are routinely 5–20× smaller for animation.
When to keep GIF
GIF is still the safest format for autoplay in email and forum posts where MP4 wouldn't render. For a website embedding, replace with `<video>` autoplay muted loop — better quality, 10× smaller, and most browsers handle it without buttons.