Animated Portable Network Graphics
Writableimage · also known as APNG
APNG is an extension of the PNG format, adding support for animated images. It is intended to be a replacement for simple animated images that have traditionally used the GIF format, while adding support for 24-bit images and 8-bit transparency. APNG is intended as a simpler alternative to MNG. APNG is backwards-compatible with PNG; any PNG decoder should be able to ignore the APNG-specific chunks and display a single image.
Identify it
| Extensions | .png.apng |
|---|---|
| MIME types | image/vnd.mozilla.apngimage/pngimage/apng |
| Signatures | 89504e470d0a1a0a0000000d49484452 at byte 0 (APNG) |
| PRONOM | fmt/935 |
| Wikidata | Q433224 |
| Library of Congress | fdd000649 |
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Open it
- ImageMagickOpen source
- Q138052002Open source
- cjxlOpen source
- libjxlOpen source
- Mozilla FirefoxOpen source
- PixiEditorOpen source
- Q847465Open source
Convert it
| To | With | Fidelity | Command and losses |
|---|---|---|---|
| Portable Network Graphics | ImageMagick | Lossless | convert in.apng out.pngPixels kept; some metadata, colour profiles or layers may be dropped. |
| Tagged Image File Format | ImageMagick | Lossless | convert in.apng out.tifPixels kept; some metadata, colour profiles or layers may be dropped. |
| GIF 89a | ImageMagick | Lossy | convert in.apng out.gifReduced to 256 colours. |
| JPEG File Interchange Format 1.02 | ImageMagick | Lossy | convert in.apng out.jpgLossy compression. |
| WebP | ImageMagick | Lossy | convert in.apng out.webpLossy compression. |
Documentation
Sources
From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), Just Solve the File Format Problem (File Formats Wiki), Kaitai Struct format gallery, PRONOM, Wikidata. Updated 2026-10-24.