When you need to add animation to a web page or email without using video, you have two traditional choices: animated GIF and animated PNG (APNG). They serve different use cases, and picking the wrong one costs you file size, quality, or compatibility. Here's how they compare.

What is animated GIF?

Animated GIF has been part of the web since 1989. It stores multiple frames in a single file and loops them at a specified frame rate. The critical limitation is its color palette: GIF supports only 256 colors per frame. Photographic content looks terrible as an animated GIF because gradients and natural colors are banded and dithered.

GIF's strengths are its near-universal compatibility and its simplicity. Every browser, email client, and even old messaging apps display animated GIFs correctly. If you need guaranteed playback in the most constrained environment, GIF still wins.

What is animated PNG (APNG)?

APNG (Animated Portable Network Graphics) is a PNG extension that adds animation support using the same 24-bit full color and 8-bit alpha channel that static PNG offers. APNG was proposed in 2004 and rejected by the PNG standards body, but browsers shipped support anyway, starting with Firefox in 2007.

APNG supports millions of colors and full alpha transparency per pixel, making it far superior to GIF for any animation involving gradients, photographs, or complex graphics. The downside: browsers that don't support APNG just show the first frame as a static image — they don't animate it.

Browser support comparison

Animated GIF: supported everywhere — Chrome, Firefox, Safari, Edge, IE11, email clients, messaging apps.
APNG: supported in Chrome 59+, Firefox 3+, Safari 8+, Edge 12+. Not supported in IE11. Global support is over 95% as of 2026.

For email, GIF is the safe choice. Apple Mail and most mobile clients support animated GIF. Outlook on Windows famously only shows the first frame of any animated image — so neither GIF nor APNG animates in Outlook.

File size comparison

File size depends heavily on content. For simple 2–4 color illustrations and icon animations, GIF and APNG produce similar file sizes. For anything photographic or multi-colored, APNG is significantly larger than GIF (because GIF's limited palette forces heavy compression through reduced color fidelity). For animations with transparency and smooth gradients, APNG is larger but looks far better.

Practical example: a 10-frame logo animation at 400 × 200 px might be 80 KB as GIF and 200 KB as APNG. A 10-frame product photo fade at the same dimensions might be 500 KB as GIF (with visible dithering) and 600 KB as APNG (with photo quality).

When to use GIF

Email newsletters (maximum compatibility).
Simple 2–8 color icon or badge animations.
When you need IE11 support.
Sharing in messaging apps or social media that might strip other formats.

When to use APNG

Animated logos with smooth gradients or shadows.
Short animated illustrations on web pages (not email).
Anything with transparency where GIF's 1-bit alpha isn't enough.
Sticker-style animations for Discord, Slack, or similar platforms.

Consider WebP and video instead

For web pages in 2026, animated WebP is smaller than both GIF and APNG with comparable quality. An even better alternative for longer animations is a short looping MP4 video played with autoplay muted loop playsinline — this can be 10× smaller than an equivalent GIF and looks perfect on all devices. Use our Image Converter to convert between these formats.

Quick decision guide

Need to animate in email: animated GIF (accepts Outlook will show only the first frame).
Simple web animation, any browser: animated GIF or APNG.
Quality matters, modern browsers only: APNG or animated WebP.
Longer animation, performance matters: looping MP4 video.