It disproves the common misconception that Animated PNG files are always too big, as it actually creates APNG files smaller than the original GIFs. Command-line version is very easy to use, and available for all major OSes. GUI version for Windows is also available.Command line: gif2apng [options] anim.gif [anim.png]-z0: zlib compression-z1: 7zip compression (default)-z2: Zopfli compression-i##: number of iterations (default -i15) for 7zip and Zopfli-kp: keep palette from GIF as is, do not optimize it.Mass conversion, if you need to process all GIFs in the current directory:for %%f in (*.gif) do gif2apng %%fExample:GIF = 97 864 bytesAPNG = 77 472 bytesIn this example, APNG is 20% smaller than original GIF (source). It's clear that bandwidth savings from switching to APNG could be quite significant, considering it's a lossless conversion. Alternative solutions like HTML5 video codecs or lossy animated WebP could produce noticable artifacts on computer graphics type of animation like the above example.Command-line version of gif2apng is available for all major OSes, there is also a GUI version for Windows. C++ source code is available under zlib license.GIF vs APNG vs WebP comparison: http://littlesvr.ca/apng/gif_apng_webp.html