RStudio is a comprehensive IDE for the R programming language, offering a customizable workbench, syntax highlighting editor, and the ability to execute code directly from the source editor. It supports authoring Sweave and TeX documents, and can run on Windows, Mac, Linux, and even as a server for multiple users. The software is licensed under AGPLv3, with the source code available on GitHub. Users can access online documentation and a community forum for support. Controversially, some may argue about the licensing terms, but overall, RStudio provides a powerful tool for R programming enthusiasts.
https://github.com/rstudio/rstudio