On, the rest of Atom, including the core application, its package manager, as well as its desktop framework Electron, were released as free and open-source software under the MIT License. Initially, extension packages for Atom and anything not part of Atom's core were released under an open-source license. can be installed via apm.Ītom's default packages can apply syntax highlighting for multiple programming languages and file formats.

All types of packages, including but not limited to: Syntactic highlighting support for other languages than the default, debuggers, etc. Packages can be installed, managed and published via Atom's package manager apm. Like most other configurable text editors, Atom enables users to install third-party packages and themes to customize the features and looks of the editor. Facebook then developed the Nuclide and Atom IDE projects to turn Atom into an integrated development environment (IDE), but development stopped in December 2018. One can even make a package to wrap all of this functionality into a single package, written in their choice of CoffeeScript or JavaScript.Ītom was developed by GitHub as a text editor. There is an init script one can customize using CoffeeScript, a style sheet to customize the looks of Atom, and a keymap to map or re-map key combinations to commands. Ītom is a 'hackable' text editor, which means it is customizable. Its developers call it a 'hackable text editor for the 21st Century', Īs it is fully customizable in HTML, CSS, and JavaScript. Ītom was released from beta, as version 1.0, on 25 June 2015. Atom was initially written in CoffeeScript and Less, but much of it has been converted to JavaScript. Atom is based on Electron (formerly known as Atom Shell), a framework that enables cross-platform desktop applications using Chromium and Node.js. Most of the extending packages have free software licenses and are community-built and maintained. Developed by GitHub, Atom is a desktop application built using web technologies. MacOS 10.9 or later, Windows 7 and later, and Linux Ītom is a free and open-source text and source code editor for macOS, Linux, and Microsoft Windows with support for plug-ins written in JavaScript, and embedded Git Control. CoffeeScript, JavaScript, Less, HTML (front-end/UI)

Free text editor atom