zlib.net by: Jean-loup Gailly Mark Adler ComponentAce

ZLIB.NET is a 100% managed version of ZLIB compression library which implements deflate and inflate compression algorithms (zlib format).

ZXing.Net by: Michael Jahn

ZXing.Net is a port of ZXing, an open-source, multi-format 1D/2D barcode image processing library originally implemented in Java. It has been ported by hand with a lot of optimizations and improvements. It is compatible with .Net 2.0/3.5/4.x/5.x/6.x/7.x/8.x/9.x, Windows RT Class Library and Components, UWP, .Net Standard 1.x and 2.0x, .Net Core App 3.x, Silverlight 4, Silverlight 5, Windows Phone 7.x and Windows Phone 8.x and Xamarin.Android

ZXing.Net.Bindings.SkiaSharp by: Michael Jahn

ZXing.Net Bindings for SkiaSharp - use SkiaSharp with ZXing.Net for barcode reading