GIF to MP4 converter
Convert animated GIFs to MP4 for dramatically smaller file sizes. Runs in your browser, no upload needed.
Drop your GIF here
or click to browse: JPG, PNG, WEBP
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What this tool does
GIF was designed in 1987 and is limited to 256 colors per frame — H.264 MP4 encodes the same animation in full color at a fraction of the file size, typically 5–20× smaller. The converted MP4 is also natively supported by every major platform and social network, which means faster uploads, faster loads, and no palette-banding artifacts. The entire conversion runs inside your browser using WebAssembly, so your file never leaves your device.
Why use it
GIF was standardized in 1987. Its 256-color palette, invented when monitors could not display more, makes every frame look like a posterized watercolor compared to the original footage. More practically: a GIF that plays for three seconds at 15fps can easily weigh 8 to 12 MB, enough for Twitter, Discord, and Slack to reject it or convert it silently on their side.
The places you actually want to share short loops (Slack, Discord, Reddit, Twitter/X) all accept MP4 as an auto-playing, auto-looping silent video. To the viewer it looks and behaves exactly like a GIF, but the file is 5 to 20 times smaller and the color rendering is sharp instead of banded. Converting a GIF to MP4 before uploading is the difference between a 10 MB attachment and a 600 KB one.
How it works under the hood
GIF stores each frame as a separate indexed-color image. There is no motion compensation, no P-frames, and no temporal compression: each frame is essentially a standalone bitmap. The conversion re-encodes those discrete frames using libx264 at CRF 23 with the yuv420p pixel format, required for H.264 compatibility across all platforms.
A pad=ceil(iw/2)*2:ceil(ih/2)*2 video filter runs first to ensure even dimensions, because H.264 requires width and height divisible by 2 and GIFs frequently have odd pixel dimensions. The -movflags +faststart flag moves the MP4 container's metadata header to the beginning of the file so the video can begin playing in a browser before the download finishes. The output has no audio stream (-an) because GIF carries none.
Tips and best practices
GIFs with large flat color areas (meme text, simple icons) compress extremely well: expect 15 to 25x reduction. GIFs with photographic content or lots of noise compress less, typically 5 to 10x. If your GIF is already small (under 500 KB), converting to MP4 may not be worth it. The overhead of the MP4 container and H.264 headers makes the break-even point around 200 to 300 KB.
If you need the converted MP4 to loop on your own website, add loop and autoplay attributes to the HTML video tag. The MP4 file itself does not store a loop instruction, but every modern browser respects those attributes and replays the clip indefinitely.
Browser tool vs alternatives
Online converters that require uploading a GIF send your file to a third-party server and give you a download link that expires. For GIFs containing proprietary animations or anything you would rather not share with an unknown server, that is a problem. Command-line FFmpeg can do this conversion in one command, but generating the correct flags (specifically the pad filter for odd dimensions and +faststart for streaming) is non-obvious without prior FFmpeg experience. This tool runs the correct flags locally in your browser with no setup.
Read the guide
How to Convert GIF to MP4 for Smaller File Sizes
What to do next
Frequently Asked Questions
Why convert GIF to MP4?
MP4 files are typically 5–20× smaller than GIFs at the same visual quality, thanks to modern H.264 video compression. They also support millions of colors instead of GIF's 256-color palette, so the converted file often looks sharper too.
Will the animation be preserved?
Yes. The MP4 plays back the same animation as the original GIF, just at a smaller file size and with improved color fidelity.
Does the MP4 have audio?
No. GIFs don't have audio tracks, so the MP4 output is silent. If you need to add audio, you can use the Add Audio to Video tool after conversion.
How much smaller will the file be?
Results vary depending on the content of the GIF, but you can typically expect the MP4 to be 5–20 times smaller. A 10 MB GIF often converts to under 1 MB.
What is the maximum GIF file size this tool accepts?
50 MB. Very large GIFs may also be slow to process depending on your device's CPU speed.
Which platforms accept MP4 instead of GIF?
Most major platforms including Twitter/X, Reddit, Discord, and Slack play MP4 as an auto-looping silent video, which behaves identically to a GIF but loads much faster.
Does the MP4 loop like a GIF?
The MP4 file itself does not have a built-in loop flag. Most platforms and players will loop it automatically when autoplay is enabled, which replicates the GIF looping experience.
Does it work on mobile?
Yes. The tool works on mobile browsers. Processing speed depends on your device's CPU, so very large GIFs may take longer on lower-end phones.
Last updated: 2026-09-05