Most of the extending packages have free software licenses and are community-built and maintained. Developed by GitHub, Atom was released on June 25, 2015. MacOS 10.9 or later, Windows 7 and later, and Linux Ītom was a free and open-source text and source code editor for macOS, Linux, and Windows with support for plug-ins written in JavaScript, and embedded Git Control.
CoffeeScript, JavaScript, Less, HTML (front-end/UI)