dotPeek decompiles any .NET assemblies and presents them as C# code.
Supported file types include:
- Using the File > Open command.
- Via drag-and-drop of a file (or a selection of files) to dotPeek window.
- For .dll files: By double-clicking a file in Windows Explorer (provided that Windows Explorer integration is configured.)
- For .dll and .exe files: By right-clicking a file in Windows Explorer and selecting Browse with JetBrains dotPeek.
In addition, assemblies from Global Assembly Cache can be opened via File > Open from GAC. One thing to note about the Open from GAC dialog is that you can batch-select assembly items there, and you can also filter out assemblies by entering their CamelHumps - the capitals that different parts of assembly names start with. For example, to find all assemblies with names containing Microsoft.VisualStudio.Modeling in the list of GAC assemblies, you can type mvsm: