APNG

Animated portable network graphics
File type: Bitmap image file
An apng file extension is related to the Animated portable network graphics files.
What is apng file?
File type category:
Bitmap image file
Date updated: June 27, 2025
Animated portable network graphics (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 a simpler alternative to MNG, providing a spec suitable for the most common usage of animated images on the Internet. APNG is backwards-compatible with PNG; any PNG decoder should be able to ignore the APNG-specific chunks and display a single image.
How to open apng file?
Use XnView to open *.apng files.
How to convert apng file?
XnView is able to export *.apng to other picture formats.
Suggested software to open apng file:
Associated software actions with the apng file
Software applications that can open apng files:
Firefox (Microsoft Windows)
Photopea (On-line services)
Software applications that can edit apng files:
Photopea (On-line services)
Software capable of saving apng files:
Photopea (On-line services)
Programs for viewing apng files:
Firefox (Microsoft Windows)
Opera browser (Microsoft Windows)
Firefox for Mac (Apple macOS / Mac OS X)
Opera browser for Mac (Apple macOS / Mac OS X)
Firefox for Linux (Linux/Unix)
Opera browser for Linux (Linux/Unix)
XnView MP (Multiplatform)
Software apps that export apng files:
gif2apng (Microsoft Windows)
Software apps that print apng files:
XnView MP (Multiplatform)