GIF to Video (MP4/WebM)
Convert an animated GIF to a much smaller MP4 or WebM video locally in your browser.
Loading GIF to Video (MP4/WebM)… If nothing happens, please enable JavaScript.
Animated GIFs are everywhere, but they are a remarkably inefficient way to store moving pictures. The format dates from 1987 and was designed for simple, low-colour graphics, not full-motion video, so a short looping clip saved as a GIF can easily be several megabytes when the same animation as an MP4 or WebM would be a small fraction of that. Converting a GIF to a real video format keeps the same motion and quality while dramatically cutting the file size, which means faster page loads, lower bandwidth, and clips that are far easier to share.
Frequently asked questions
Is my GIF uploaded to a server?
Why convert a GIF to MP4 or WebM at all?
Should I choose MP4 or WebM?
How much smaller will the video be?
Will the animation still loop?
Does the converted video have sound?
Is there a size limit on the GIF?
Does it work offline?
About GIF to Video (MP4/WebM)
This tool converts GIFs to MP4 (H.264) or WebM (VP9) entirely inside your browser using a WebAssembly build of FFmpeg. Your GIF is read locally, re-encoded with a modern video codec, and returned as a download, with nothing uploaded to any server. MP4 is the safest choice for broad compatibility (it plays everywhere, including inside messaging apps and on older devices), while WebM with VP9 can squeeze the size down even further and is ideal for the web on modern browsers.
The reason the savings are so large comes down to how the formats compress. A GIF stores each frame almost independently and is limited to 256 colours, so it cannot take advantage of the fact that most of a video changes very little from one frame to the next. Modern video codecs do exactly that: they store the differences between frames and use full colour, which is enormously more efficient for real footage. The MP4 output is also given an even width and height and a widely supported pixel format so it plays reliably across players, and a faststart flag so it can begin playing before it has fully downloaded.
How the web quietly replaced GIFs with video
For years the animated GIF was the internet's universal language for short, looping clips, despite being a format from 1987 that was never meant for video. Its appeal was simple: it played automatically, looped forever, and worked everywhere without a player or a play button. The cost was hidden in the file size. Because a GIF is capped at 256 colours and stores frames in a way that cannot exploit how little changes between them, a few seconds of motion could weigh several megabytes, which added up fast on busy pages full of reaction clips.
The big platforms noticed. Around the mid-2010s, sites that served enormous numbers of looping clips quietly stopped delivering actual GIFs and started serving short, silent, auto-looping MP4 or WebM videos behind the scenes, while still calling them GIFs in the interface. The user experience looked identical (a clip that plays and loops on its own) but the bytes sent across the network dropped dramatically, often by an order of magnitude, which saved both the platforms and their users a huge amount of bandwidth.
That is exactly the trick this tool puts in your hands. By converting a GIF to an autoplay-friendly video, you get the same seamless loop with a fraction of the data. Pair the output with an HTML video element marked autoplay, muted, loop, and playsinline, and you have a modern, lightweight replacement for the animated GIF that behaves the same to anyone watching but is far kinder to load times and data plans.