This article talks about understanding the PNG pixel data and compression, which is wonderful. Recently I made a tool to understand another aspect of the PNG fi

This article talks about understanding the PNG pixel data and compression, which is wonderful. Recently I made a tool to understand another aspect of the PNG file format, which is the full list of chunks, metadata chunks, and chunk fields. https://www.nayuki.io/page/png-file-chunk-inspector https://www.nayuki.io/page/png-file-chunk-inspector