GIF is the oldest animation format on the web, and the least efficient.
It's also the only one that works almost everywhere.
Here is how it compares to the alternatives, with a real file-size test and a simple rule for choosing.
Same animation, four formats
We converted our 12-frame, 560 x 350 sunset test animation to each format with common settings. The source was the original GIF, so every format started from the same 256-color frames.
| Format | Settings | Size | vs GIF |
|---|---|---|---|
| GIF (original export) | 256 colors | 303 KB | - |
| GIF (optimized) | Balanced preset | 107 KB | -65% |
| APNG | Lossless | 148 KB | -51% |
| WebP | Lossless | 94 KB | -69% |
| WebP | Lossy, quality 75 | 61 KB | -80% |
| MP4 (H.264) | CRF 23 | 19 KB | -94% |
On longer, video-like clips the gap grows even wider, because video codecs reuse information between frames far more cleverly than GIF can.
Feature comparison
| GIF | WebP | APNG | MP4 | |
|---|---|---|---|---|
| Colors per frame | 256 | 16.7 million | 16.7 million | 16.7 million |
| Transparency | On/off only | Full alpha | Full alpha | None |
| Lossy option | Via lossy LZW | Yes | No | Yes |
| Modern browsers | Yes | Yes | Yes | Yes, as video |
| Email clients | Nearly all | Few | Few | No |
| Chat apps | Widely | Varies | Rarely | Usually, as video |
| Sound | No | No | No | Yes |
GIF: universal but heavy
GIF's 256-color limit and simple compression make it large and sometimes grainy. Its strength is that virtually every app, email client and forum can show it, and it plays automatically everywhere.
Choose GIF for email, chat, documentation that renders in many places, and anywhere you can't control the viewer. Then make it as small as possible with Compress GIF.
Animated WebP: the modern image choice
WebP supports full color, smooth alpha transparency and both lossy and lossless compression. All current major browsers display it.
It's a great replacement for GIF on your own website, especially for stickers and UI animations with transparent edges. Upload support in apps and email is less reliable.
APNG: lossless with real transparency
APNG is PNG with frames. Quality is perfect and transparency is smooth, but there is no lossy mode, so files stay fairly large.
It's a good fit for short icons and stickers where crisp edges matter more than size.
MP4: smallest by far, but it's a video
For anything that looks like footage, a muted looping MP4 is dramatically smaller. That's why big GIF sites serve video behind the scenes.
On your own site, use it like this:
<video autoplay muted loop playsinline width="560" height="350">
<source src="clip.mp4" type="video/mp4">
</video>The muted and playsinline attributes are what allow autoplay on phones. MP4 has no transparency, and many emails and chat apps won't autoplay it.
Which should you use?
- Email or chat: GIF, compressed. Check the caps in GIF Size Limits for Discord, Slack, X, WhatsApp and Email.
- Your own website, video-like clip: MP4, with a GIF fallback only if needed.
- Your own website, graphic with transparency: animated WebP.
- Pixel-perfect sticker or icon: APNG or a carefully optimized GIF.
Whatever you choose, inspect the result. The GIF Metadata Viewer shows a GIF's frames, timing and palettes, and Split GIF exports frames you can encode in any other format.
Frequently asked questions
Is WebP better than GIF?
For file size and color quality, yes: animated WebP supports millions of colors and real alpha transparency, and is usually much smaller. GIF is still the safer choice where you can't control the viewer, such as email and some chat apps.
Why do sites like Giphy serve MP4 instead of GIF?
Because video is far smaller for the same clip. A muted, looping MP4 looks like a GIF to visitors while loading several times faster.
Can MP4 have a transparent background?
Standard H.264 MP4 cannot. If you need transparency, use animated WebP, APNG or GIF.
Does every browser support animated WebP and APNG?
All current versions of Chrome, Edge, Firefox and Safari display both. Very old browsers and many email clients do not.