SpinStudioJ offers general functionalities about instrument control, data acquisition, data processing, and data analysis. The plug-in architecture based on Eclipse RCP is highly flexible and extensible for the integration of new hardware components and data processing algorithms. Existing third party Eclipse RCP based plug-ins also can be easily integrated into the software system. The extension point is the general extension mechanism provided by the Eclipse RCP framework. General operating systems such as Windows, Mac OSX, Unix, and Linux are supported, due to the platform independence of the Java programming language.