Compress GIF — Smaller Files, Same Look

Dimensions come first. File size scales with pixel count, so going from 640 px wide to 480 px removes about 44% of the pixels before a single encoder setting is touched. Frame count is next and scales almost linearly: halving the frame rate roughly halves the file.

Colour count is third and less linear than people expect — 256 to 128 colours often costs almost nothing visually while saving 20–30%, but 32 to 16 usually looks obviously worse for a much smaller gain. Dithering is last, and it can increase size: it trades flat compressible areas for noise that compresses worse, in exchange for smoother gradients.

GIF is a 1987 format with a 256-colour ceiling and no interframe motion compensation. A five-second video clip that is 3 MB as a GIF is often under 300 KB as an MP4 or WebM at better quality. If the destination accepts video — and most chat apps, docs tools and social platforms now do — that is a 10× win no amount of tuning will match.

GIF remains the right answer when you need a file that plays inline, loops forever, and works in email clients and old wikis with no player. Then it is worth the bytes, and the levers above are what you have.