  In software engineering, a great number of new approaches are being actively
researched, and a lot of tools are being developed based on them. These tools
require a framework for their creation and an opportunity to be used by
potential developers. Modern IDEs provide both.
  In this paper, we describe the main capabilities of the IntelliJ Platform
that could be useful for researchers that are developing code analysis tools.
To illustrate the benefits of using the platform, we describe several use cases
that researchers might be interested in: mining software data, running machine
learning models on code, recommending refactorings, and visualizing data in the
IDE. We provide several examples of existing plugins that implement these
cases. Finally, to make it easier to start working with the platform, we
develop and provide simple plugins for each use case that could serve as a
template for a new project.
