Processing is described as 'Open source programming environment and library built to handle images, animation, and interactivity. It is used by students, artists, designers, researchers, and hobbyists for learning to code, prototyping, and producing full applications' and is a popular app in the development category. There are more than 10 alternatives to Processing for a variety of platforms, including Mac, Windows, Linux, Web-based and Figma apps. The best Processing alternative is OpenFrameworks, which is both free and Open Source. Other great apps like Processing are Processing.js, Cinder, Vuo and Vvvv.