KDevelop is a free and open-source integrated development environment (IDE) for Unix-like computer operating systems and Microsoft Windows.
License: Open Source
NetBeans is a versatile IDE primarily focused on Java development with strong support for other languages and a rich set of features, while KDevelop is a lightweight and fast IDE that excels in C/C++ development and offers great customization options. The choice between them largely depends on the specific programming languages and frameworks being used, as well as the user's preference for lightweight versus feature-rich environments.