GitHub’s Atom is billed as a hackable text editor for the 21st Century. It’s an open source esktop application based on web technologies, specifically HTML, JavaScript, CSS, and Node.js integration. It runs on Electron, a framework for building cross platform apps using web technologies.
Atom consists of over 50 open source packages integrated around a minimal core. With Node.js support, and a full set of features, Atom is an excellent way to edit code.
It’s easy to customize and style Atom. You can tweak the look and feel of your UI with CSS/Less and add major features with HTML and JavaScript. Atom is ideal if you like to tinker with your editor. Atom has more than 1 million active users.
Features include:
- Cross-platform editing.
- Built-in package manager – choose from thousands of open source packages that add new features and functionality to Atom.
- Smart autocompletion.
- File system browser.
- Multiple panes.
- Find, preview, and replace text as you type in a file or across all your projects.
- Pre-installed with four UI and eight syntax themes in both dark and light colors. Over 1000 themes are available.
- Supported languages include: HTML, CSS, Less, Sass, GitHub Flavored Markdown, C/C++, C#, Go, Java, Objective-C, JavaScript, JSON, CoffeeScript, Python, PHP, Ruby, Ruby on Rails, ShellScript, Clojure, Perl, Git, Make, Property List (Apple), TOML, XML, YAML, Mustache & SQL.
Website: atom.io
Support: GitHub
Developer: GitHub Inc.
License: MIT License

Atom is written in JavaScript. Learn JavaScript with our recommended free books and free tutorials.
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