IBM Rational Developer for i is described as 'Integrated development environment (IDE) for creating and maintaining applications on IBM i systems, from the developer’s desktop, supporting development in both host-connected and disconnected modes' and is a IDE in the development category. There are three alternatives to IBM Rational Developer for i for Windows, Linux, Mac and BSD. The best IBM Rational Developer for i alternative is Eclipse, which is both free and Open Source. Other great apps like IBM Rational Developer for i are MiWorkplace - Editor for IBM i and ILEditor.