MonoDevelop (also known as Xamarin Studio) is an open source integrated development environment for Linux, macOS,MonoDevelop on Mac OS X.

KDevelop is a free and open-source integrated development environment (IDE) for Unix-like computer operating systems and Microsoft Windows.

Anjuta is an integrated development environment written for the GNOME project.

MinGW (Minimalist GNU for Windows), formerly mingw32, is a free and open source software development environment for creating Microsoft Windows applications.

OpenJDK (Open Java Development Kit) is a free and open source implementation of the Java Platform.

WaveMaker Platform is a platform for rapid application development for web & mobile apps.