jarvisbox

GIF to MP4 Converter

Convert an animated GIF into an MP4 video — typically 5–20× smaller for identical motion. Useful for embedding heavy reaction GIFs on a website or for posting where MP4 is preferred. Runs locally with ffmpeg.wasm.

100% client-side · ffmpeg.wasm · no upload

Pick a GIF file to begin.

How to convert GIF to MP4

  1. Pick your .gif file.
  2. Pick a quality preset. CRF 23 is a balanced default; CRF 28 is smaller.
  3. Keep yuv420p on if you need playback on iOS Safari and most embedded players.
  4. Press Convert to MP4 and download the result.

Common use cases

Frequently asked questions

Will the MP4 loop automatically?

The MP4 itself does not loop — the player has to. In HTML, add autoplay loop muted playsinline on the <video> element.

What if the GIF has a non-even width?

H.264 requires even dimensions; this tool pads odd widths/heights by one pixel so encoding never fails on rare sizes.

Why is the first run slow?

ffmpeg.wasm is ~25 MB and is downloaded once, then cached for instant subsequent runs.

Related: GIF Maker · Animated WebP Maker · Video to GIF · All animation tools

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