ILSpy is an open-source .NET assembly browser and decompiler developed by the SharpDevelop community. Designed to facilitate the analysis and exploration of .NET assemblies, ILSpy provides users with a user-friendly interface for viewing, navigating, and decompiling .NET code. With support for a wide range of .NET languages, including C#, Visual Basic .NET, and F#, ILSpy enables users to decompile and inspect assemblies written in different languages, making it a valuable tool for .NET developers, reverse engineers, and security researchers.