Video to GIF Converter

Why GIF file size explodes — and how this tool keeps it small

A GIF is an ancient, simple format: every frame is a full still image limited to a palette of just 256 colours, and frames are stored with only light, lossless compression. There is no motion compression the way modern video has — a GIF cannot say "this part of the frame did not change" and reuse it efficiently the way H.264 does. So GIF size scales almost directly with three things: how many frames (the frame rate × the length), how many pixels per frame (the width), and how busy the picture is. Double the frame rate and you roughly double the size; double the width and you roughly quadruple it. That is why a few seconds of video can become a 30 MB GIF if you are not careful — and why the controls on this page matter more than on any other converter.

The two-pass palette: the real quality trick

The single biggest quality decision in a GIF is which 256 colours it gets to keep. A lazy converter uses one generic, web-safe palette for every clip, which leaves skin tones blotchy and skies banded. This tool instead runs two passes:

1. palettegen (pass one) scans your specific clip and builds a custom 256-colour palette tuned to its colours. It uses stats_mode=diff, which weights the palette toward the pixels that actually change between frames — the moving subject — rather than wasting precious palette slots on a static background. Your subject gets the colour detail; the parts nobody is looking at get less.
2. paletteuse (pass two) renders every frame against that custom palette, using ordered (Bayer) dithering to scatter the small colour errors into a fine, even pattern. Dithering is what hides banding in gradients without the heavy speckle you get from no dithering at all — so the GIF looks sharp and compresses well.

This is the same technique professional GIF workflows use, automated for you. It is also the reason this converter is positioned as a GIF specialist rather than a general format tool.

Approximate file size by fps × width × length

Use this as a rough planning guide — busy, high-motion footage runs larger, flat or simple footage smaller:

If your GIF comes out heavier than you want, drop the frame rate first (10–12 fps is plenty for most loops), then the width, then the length. The tool warns you on screen whenever an output lands above 10 MB.

GIF or MP4 — which should you use?

Reach for a GIF when you need something that auto-plays, loops and stays silent inline — in chat apps, README files, docs, knowledge bases, email signatures and old forums where a real video player will not embed. Reach for an MP4 for anything longer, anything with sound, or anywhere file size matters: an MP4 of the same clip is typically 5–10× smaller than the GIF and far sharper. If small-and-shareable is the goal, run your clip through the Video Compressor instead; for a different container entirely, use the Video Format Converter. For a tighter, punchier GIF, trim the clip first so you only convert the moment that matters.

Limits

Without an account you can convert one file up to 100 MB and 5 minutes long, with the GIF span itself capped at 10 seconds. A free account raises that to 200 MB, 10 minutes and a 15-second GIF span. Those caps keep each conversion fast, because the GIF is rendered while you wait, and they keep GIF output sizes sane.

Privacy

Your upload is processed securely on the server, used only to render your GIF, and auto-deleted shortly afterwards — nothing is kept and no account is required to use the tool.