Wuffs is great. I use it in Substrata (https://substrata.info/) for loading PNGs. It is both faster and safer than LibPNG. It's something around 2x faster than LibPNG in my tests (depending on the PNG file), see timings here: https://github.com/google/wuffs/issues/13#issuecomment-17325...

So generally Wuffs is great and you should use it to decode your PNGs. There are some downsides: not all of the obscure bit depths and formats that PNG supports are loaded as-is, some are converted to more standard formats.

Also the Wuffs documentation is a bit hard to understand. It's a litle bit of a mission getting PNG decoding working. You can see my code for that here though: https://github.com/glaretechnologies/glare-core/blob/2c7174c...