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How to convert a GIF to MP4 on a Mac
By Himanshu Ranjan · Updated 8 November 2026
To convert a GIF to MP4 on a Mac, select it in Finder and run Convert › Convert GIF to MP4 in FileDial. FileDial says the result is much smaller than the GIF. There is also Convert › Convert GIF to WebM and Convert › Convert GIF to animated WebP. All run locally with no upload.
Why GIFs are so big
GIF dates from CompuServe in 1987, with the 89a version in 1989 adding animation. It is limited to 256 colours per image and uses LZW compression, which suits flat graphics better than photographic motion. Wikipedia notes that video offers much smaller file sizes, can exceed the 256 colour limit and compresses frames more efficiently, and that services such as Imgur and Telegram have converted GIFs to video formats.
That is the trade: GIF is universal and loops by default, but a short clip can weigh many times what an MP4 of the same clip does.
Convert in FileDial
Convert › Convert GIF to MP4 is a one-step conversion that FileDial describes as much smaller than the GIF. The new file is written beside the original, which stays untouched, and the result card shows before and after sizes.
- Select the GIF in Finder.
- Hold the right Option key to open the dial, or right-click and choose Open in FileDial.
- Choose Convert, then release on Convert › Convert GIF to MP4.
- Open the MP4 beside the GIF and check it plays as you expect.
MP4, WebM or animated WebP
Pick by where it will be shown. MP4 is the safe video format for chat apps, social platforms, email and slide software. WebM is a web video format that browsers play, and FileDial offers Convert › Convert GIF to WebM, described as much smaller than the GIF. Animated WebP keeps the image-like behaviour that loops in an img tag, and FileDial describes Convert › Convert GIF to animated WebP as often smaller than the GIF.
Video has differences you should know about. It may not loop or autoplay unless the page or app is set up to do so, and some places specifically require a real GIF.
- Sharing in chat or social media: MP4.
- Website with a video tag: MP4 or WebM, set to loop and mute.
- Image slot that must behave like a picture: animated WebP.
Edit the GIF first
If the file is still too long or too big, fix the GIF before converting. FileDial has Adjust › Change GIF speed…, Adjust › Reverse GIF, Resize › Crop GIF…, Markup › Add text to GIF… and Compress › Optimize GIF to size…, which uses fewer colours, frames or pixels until it fits. Convert › Split GIF into frames writes a folder of PNGs when you need individual frames.
To go the other way, Combine › Images to GIF builds one animated GIF from a set of pictures.
Where a real GIF is still needed
A few places insist on GIF: some email clients, older forums, some chat tools, and keyboard or sticker libraries. If you need a GIF but it is huge, optimise it rather than converting. Compress › Optimize GIF to size… reduces colours, frames or pixels until it fits.
Also consider the source. If your GIF came from a screen recording, the original video is better than any GIF made from it. Recording video and trimming it, then converting to the format you need, gives cleaner results than editing a GIF. FileDial has video tools for trimming and compressing if you still have the source.
When publishing on a website, a short muted looping video usually beats a GIF for loading time. Provide the MP4 first and a poster image, and you will usually serve fewer bytes to visitors.
- Need GIF: optimise it.
- Have the source video: use that.
- Website: muted looping MP4.
Mistakes to avoid
Do not assume MP4 will loop or autoplay. Many sites require video tags with loop and muted settings, and some chat apps handle video differently from GIFs. Do not convert tiny pixel-art GIFs to video without checking quality, since compression can blur hard edges.
Use the original screen recording or video when you have it, because it gives better results than anything derived from a GIF. FileDial is the right tool for converting existing GIFs, shrinking them, and editing them: speed, reverse, crop, text and optimisation. If you need a video from still pictures instead, Combine › Make a slideshow video… writes an MP4 in selection order.
A quick decision guide: for chat and social platforms, convert to MP4. For a web page, use MP4 or WebM in a looping, muted video tag. For an image slot, use animated WebP. For places that require a real GIF, keep it a GIF and optimise it to fit. For a still, split it into frames. Before sharing any screen recording as a GIF or video, check it does not show passwords, emails or customer data in the frames.
Stay offline
GIFs of screen recordings can show private data. FileDial never uploads files, and all tools work with Wi-Fi off.
Questions
Why is MP4 smaller than GIF?
GIF stores frames with a 256 colour palette and older LZW compression, while video codecs compress frames far more efficiently by encoding differences between them. Wikipedia notes video offers much smaller file sizes. FileDial describes its GIF to MP4 result as much smaller than the GIF.
Will the MP4 loop like a GIF?
Not automatically. GIFs loop by default, but a video loops only if the player or page is set to repeat it. Websites use looping and muted video tags for this, and some chat apps loop short clips. Animated WebP is closer to GIF behaviour.
Can I convert a GIF to WebM or WebP instead?
Yes. FileDial has Convert › Convert GIF to WebM and Convert › Convert GIF to animated WebP. It describes both as smaller than the GIF, with WebP often smaller. Use WebM for web video and animated WebP where you need an image-like loop.
How do I shrink a GIF but keep it a GIF?
Use Compress › Optimize GIF to size…, which reduces colours, frames or pixels until the file fits. You can also trim dimensions with Resize › Crop GIF… or speed it up with Adjust › Change GIF speed… Compress › Optimize GIF to size… cuts colours, frames or pixels, while Adjust › Change GIF speed… changes playback speed.