What's the engine behind this?
This page runs on Gifsicle — the well-known command-line tool that's been the industry standard for GIF optimization for years, this time compiled to WebAssembly and running entirely in your browser.
Drop up to 20 files here (static or animated). Powered by Gifsicle — the same engine professional tools use — all processed right inside your browser.
Drop your files here
or click to choose from your device — GIF only, 20 files max
Our online GIF compressor significantly reduces the file size of your animated GIFs using lossy compression, without sacrificing the smoothness or quality of the animation. GIF files tend to be large because they contain multiple frames, which can seriously slow down your website. This tool runs entirely in your browser, so your files are never uploaded to a server.
This page runs on Gifsicle — the well-known command-line tool that's been the industry standard for GIF optimization for years, this time compiled to WebAssembly and running entirely in your browser.
The quality slider controls how much distortion is allowed in the LZW compression — the lower the number (more aggressive compression), the smaller the file, but the more likely you are to see noise in flat, uniform colors. For most web GIFs, 70–85 is a good balance.
Yes — unlike JPEG/PNG, which are single-frame, GIF can be multi-frame/animated, and Gifsicle works directly on the file structure rather than one frame's pixels — so frame count, timing between frames, and the loop count all stay intact.
No. Compression is applied to the color quality of each frame, not the number or speed of frames, so the animation stays smooth.
Since a GIF is made up of multiple image frames, its file size is usually much larger than a single static image. Lossy compression reduces this by lowering the color precision of each frame.
No. All processing happens directly in your browser, and no files are ever sent to a server.
You can upload GIF files up to 150MB
Yes, this GIF compressor is completely free to use, with no sign-up required.