## What Is APNG?
**APNG** (Animated Portable Network Graphics) extends the PNG format with multi-frame animation support. Developed by Mozilla in 2004, it offers key advantages over GIF: 24-bit color (millions vs. 256), 8-bit alpha transparency (vs. binary on/off), and lossless compression.
## APNG vs GIF vs Animated WebP
| Feature | GIF | APNG | Animated WebP |
|---------|-----|------|--------------|
| Color | 8-bit (256) | 24-bit | 24-bit |
| Transparency | 1-bit (on/off) | 8-bit (alpha) | 8-bit (alpha) |
| File size | Small | Large | Very small |
| Compatibility | Universal | Modern browsers | Chrome/Firefox/Edge/Safari 14+ |
## Browser Compatibility
Chrome ✅, Firefox ✅ (invented it), Safari ✅ (since v8), Edge ✅, Internet Explorer ❌.
## Create APNG with FFmpeg
```bash
# PNG frames to APNG
ffmpeg -framerate 10 -i frame%03d.png -plays 0 output.apng
# GIF to APNG
ffmpeg -i animation.gif -plays 0 animation.apng
# APNG to animated WebP (smaller file)
ffmpeg -i animation.apng -c:v libwebp -lossless 0 -quality 80 -loop 0 animation.webp
```
## When to Use Each Format
| Use Case | Format |
|----------|--------|
| Animated logo on web (lossless) | APNG |
| Optimized web animation | Animated WebP |
| Telegram/iMessage sticker | **APNG** (official standard) |
| Animated email | GIF (only universally supported) |
## Conclusion
APNG is superior to GIF in quality. For web, use animated WebP for better compression. For messaging app stickers, APNG is the official format.
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