Atom is an open-source, Electron based text editor with a massive ecosystem of plugins and themes that are easily accessible through a built-in package manager. Being built with Electron, it uses web technology (HTML, CSS, JavaScript and Node.js) and offers the same editing experience across Mac, Windows and Linux desktops. Different from most editors, it uses that same technology for themes so the UI is highly configurable through HTML, CSS and JavaScript.

FEATURES
- Same familiar workflow across platforms.
- Built-in package manager.
- File system browser.
- Advanced find-and-replace that works across multiple files and folders.
- Smart autocompletion.

A text editor is at the core of a developer’s toolbox, but it doesn't usually work alone. Work with Git and GitHub directly from Atom with the GitHub package.

Create new branches, stage and commit, push and pull, resolve merge conflicts, view pull requests and more—all from within your editor. The GitHub package is already bundled with Atom, so you're ready to go!

Cross-platform editing
Atom works across operating systems. Use it on OS X, Windows, or Linux.

Smart autocompletion
Atom helps you write code faster with a smart and flexible autocomplete.

Multiple panes
Split your Atom interface into multiple panes to compare and edit code across files.

Built-in package manager
Search for and install new packages or create your own right from Atom.

File system browser
Easily browse and open a single file, a whole project, or multiple projects in one window.

Find and replace
Find, preview, and replace text as you type in a file or across all your projects.

Packages
Choose from thousands of open source packages that add new features and functionality to Atom, or build a package from scratch and publish it for everyone else to use.

Customization
It's easy to customize and style Atom. Tweak the look and feel of your UI with CSS/Less, and add major features with HTML and JavaScript.

Themes
Atom comes pre-installed with four UI and eight syntax themes in both dark and light colors. Can't find what you're looking for? Install themes created by the Atom community or create your own.

Under the hood
Atom is a desktop application built with HTML, JavaScript, CSS, and Node.js integration. It runs on Electron, a framework for building cross platform apps using web technologies.