GIF vs MP4 vs WebP: what Threads actually serves

You tap a looping clip on Threads, call it a “GIF,” and try to save it — only to end up with an MP4. That’s not a bug. Like most modern platforms, Threads stores almost no real GIFs; it serves looping MP4 video instead. Here’s what’s really behind those clips, why it matters, and how to get the format you actually want.

The short version

When you add a “GIF” from the in-app picker, the platform converts it to a small, silent, auto-looping MP4 before it ever reaches the feed. So when you download one of those clips, you get an MP4 — which is a good thing. MP4 is smaller, sharper, and plays everywhere. The word “GIF” survives as a label, but the file underneath is video.

Why platforms dropped real GIFs

The GIF format is over 35 years old and was never built for smooth motion. It’s capped at 256 colors, handles gradients poorly (hello, banding), and produces files several times larger than an equivalent video. A 3-second clip that’s 5 MB as a GIF can be a few hundred kilobytes as MP4 at far better quality. For a feed that has to load fast on mobile data, MP4 wins on every axis.

The three formats side by side

So which should you keep?

Keep the MP4 if you just want to save or re-share the clip

For watching, re-posting, or sending to someone, the MP4 is the better file in every way. Don’t convert it to GIF “to be safe” — you’d only make it bigger and uglier.

Convert to GIF only when something genuinely needs a GIF

A few places still expect a true animated image rather than a video — some chat tools, certain wikis or forums, slide decks, or email signatures. In those cases, convert the MP4 to GIF with any free “MP4 to GIF” tool. Keep it short and small; GIFs balloon fast.

WebP sits in the middle

Animated WebP is a modern compromise — much smaller than GIF, far more colors — used mainly on websites. If you control where it’ll be displayed and you know WebP is supported there, it’s a fine choice. If you’re unsure, MP4 (for video) or GIF (for an image) are the safer bets.

How to convert an MP4 clip to a GIF

1. Save the clip first so you have the MP4 file on your device.
2. Open any reputable “MP4 to GIF” converter (desktop apps and trustworthy web tools both work).
3. Trim to the few seconds you actually need — shorter clips make dramatically smaller GIFs.
4. Export, and check the file size; if it’s huge, lower the dimensions or frame rate a touch.

Avoid uploading anything private to unknown conversion sites, and stick to well-known tools.

Will I lose quality saving the clip?

No extra loss from downloading. You get the MP4 the post serves, at the dimensions the creator’s clip was encoded to — no re-compression on our end. Any quality limit was set when the platform first encoded the loop, and that affects every viewer equally. Converting MP4 → GIF afterward does reduce quality, which is exactly why you should only do it when a GIF is truly required.

FAQ