Question 1

How does GIF compression work?

Accepted Answer

We run gifsicle, the standard open-source GIF optimizer, compiled to WebAssembly. It removes redundant pixels between frames, applies lossy LZW compression and can reduce the color palette or dimensions when you need a smaller file.

Question 2

Are my GIFs uploaded to a server?

Accepted Answer

No. Compression runs entirely in your browser, so your files never leave your device. It also works offline once the page has loaded.

Question 3

Will compressing a GIF ruin the quality?

Accepted Answer

Light settings (compression 30–60) are usually invisible. Higher compression adds grain, fewer colors can cause banding, and lowering the size shrinks the file the most. Target presets try the gentlest settings first.

Question 4

How do I get a GIF under a specific size?

Accepted Answer

Choose a target such as Email (1 MB) or Discord (10 MB). The compressor tries progressively stronger settings and stops at the first result that fits.

Question 5

Is there a file size limit?

Accepted Answer

There is no hard limit, but very large GIFs (over 50 MB) can take a while because processing happens on your own device.

GIF Compressor

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