"Animation PNG (APNG)" began to be supported on Chromium, which is based on Google Chrome


ByLinux Screenshots

Web browser provided by GoogleGoogle ChromeIs an open source web browser development project "ChromiumIt is based on. That Chromium is a new animated image format "APNGWe announced that it corresponded to.

7d2b8c45afc9c0230410011293cc2e1dbb8943a7 - chromium / src - Git at Google
https://chromium.googlesource.com/chromium/src/+/7d2b8c45afc9c0230410011293cc2e1dbb8943a7

Chromium seems to correspond to APNG by deciphering PNG images in two stages of "structure analysis" and "decode". This raises the possibility that Google Chrome will respond to APNG in the future.

◆ What is APNG in the first place?
An abbreviation for Animated Portable Network Graphics "APNG(Animation PNG) "is one of the animation image formats that extended" PNG "which is one of the still image format. There is "GIF" in the famous animation image format, but it is a standard made as an alternative to "Animated GIF (GIF animation)" which is an animation using this, it is cleaner than GIF (GIF is 256 colors It is compatible with file size because APNG supports full color) and compression ratio is also high.

At the time of article writing, major web browsers compatible with APNG are only Firefox (version 51 or later), macOS version of Safari (version 10 or later) and iOS version of Safari (version 10.2 or later).

Animated PNG (APNG)


The following images can be seen by playing balls by APNG compatible web browser, but if they do not correspond, they look just like stopped balls.
Animated PNG example bouncing beach ball.png
By Holger Will -[1], Public domain,Link

The animation GIF and the APNG of the illustration in which the elephant walks are displayed in the destination where you click on the following image, which also moves when you look at the APNG compatible web browser. Both images are transmitted through, but the boundary line between the image and the transparent part is better in APNG.

APNG sample


Furthermore, the following page compares the file size of animated GIF and APNG. You can see that APNG can make the file size compact if it is the same 8 bit.

APNG Software - Samples 1


If you can not wait for APNG support in Google Chrome, you can play animation as soon as you add "APNG" extension.

APNG - Chrome Web Store

in Software, Posted by logu_ii