.NET Reflector has been designed to host add-ins to extend its functionality, many of which are open source. Some of these add-ins provide other languages that can be disassembled too, such as PowerShell, Delphi and MC++. Others analyze assemblies in different ways, providing quality metrics, sequence diagrams, class diagrams, dependency structure matrices or dependency graphs. It is possible to use add-ins to search text, save disassembled code to disk, export an assembly to XMI/UML, compare different versions, or to search code. Other add-ins allow debugging processes. Some add-ins are designed to facilitate testing by creating stubs and wrappers.