A performant, lightweight, and simple plain text editor with syntax highlighting, line numbers, search and replace, page guide, and much more.




Atom is described as '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' and is a leading Code Editor in the development category. There are more than 100 alternatives to Atom for a variety of platforms, including Windows, Linux, Mac, BSD and Web-based apps. The best Atom alternative is Visual Studio Code, which is free. Other great apps like Atom are Notepad++, Sublime Text, Vim and VSCodium.
A performant, lightweight, and simple plain text editor with syntax highlighting, line numbers, search and replace, page guide, and much more.






Judge0 IDE is a free and open-source online code editor that allows you to write and execute code from a rich set of languages. It's perfect for anybody who just wants to quickly write and run some code without opening a full-featured IDE on their computer.

Teletype(beta) for Atom lets developers share their workspace with team members and collaborate on code in real time.


Codiad is an open source, web-based, cloud IDE and code editor with minimal footprint and requirements


CodeTasty is a programming platform for developers in the cloud. Enabling them to collaborate with others and offers features like code complete (js and php parsing), live preview, multiple layouts, revisions, terminal, dark/light theme.


Powerful, Collaborative Online/Offline web IDE
The IDE component is also available as an open source project on GitHub: https://github.com/FriendCode/codebox.

Kod is a programmers' editor for OS X
Source available at http://github.com/rsms/kod
Goals and features
Fully concurrent — loading files, syntax highlighting, etc is distributed across available CPU cores. Minimal waiting time.
Integrated scripting environment based on No.


Wing is a highly customizable Python IDE that uses both static and runtime code analysis to provide auto-completion, call tips, code documentation, goto-definition, find uses, refactoring, and many other features.


