Atom

A hackable text editor for the 21st Century

Atom is a free and open-source[6][7] text and source code editor for macOS, Linux, and Microsoft Windows[8] with support for plug-ins written in JavaScript, and embedded Git Control. Developed by GitHub, Atom is a desktop application built using web technologies.[9] Most of the extending packages have free software licenses and are community-built and maintained.[10] Atom is based on Electron (formerly known as Atom Shell),[11] a framework that enables cross-platform desktop applications using Chromium and Node.js.[12][13] Atom is written in CoffeeScript and Less, but much of it has been converted to JavaScript.[14] Atom was released from beta, as version 1.0, on 25 June 2015.[15] Its developers call it a "hackable text editor for the 21st Century",[16] as it is fully customizable in HTML, CSS, and JavaScript.[17