Atheos Cloud IDE

Atheos is a lightweight, self-hosted, web-based IDE framework forked from Codiad, designed for developers who need a fast, minimal-resource coding environment in the browser.

🚀 Overview

Atheos is a web-based IDE that runs on your own server with minimal requirements—no database needed, just PHP and a web server. It solves the problem of bloated desktop IDEs or expensive cloud services by providing a simple, performant alternative for interactive development directly in the browser.

It's built for solo developers, hobbyists, indie makers, and small teams looking for self-hosted collaborative coding without heavy overhead.

The project was created to modernize and maintain Codiad, incorporating cleaner code, modern UX, reduced traffic, and new features like built-in Git while keeping the small footprint.

✨ Key Features

Web-based code editor supporting 40+ languages with syntax highlighting, 20+ themes, smart auto-complete, and error checking
Real-time collaborative editing, multi-user permissions, and screen splitting
Plugin library & marketplace, file management, advanced search, LocalStorage redundancy
Built-in Git integration, quick backups, i18n support, and maximum screen space
Optional: Docker support, terminal plugin, ongoing plugin development

🛠 Tech Stack

Frontend: JavaScript, SCSS
Backend: PHP 7+
Database: None (file-based storage)
Auth: Custom multi-user system
Hosting: Self-hosted (Apache/Nginx), Docker

👥 Who Is This For?

This project is useful for:

Developers who want a lightweight, browser-based IDE without desktop installations
Self-hosters seeking minimal server footprint for coding
Teams looking for collaborative, open-source web development tools

📸 Screenshots / Demo

Live demo: None publicly available
GitHub: https://github.com/Atheos/Atheos

🔥 Project Status

🟡 Maintained

Last updated: 2025-01-10

❓ FAQ

Is this project free?

Yes — Open Source under MIT license. (Free to self-host and use with no costs.)

Is the source code available?

Yes — https://github.com/Atheos/Atheos

Can I contribute?

Yes — Browse issues on GitHub for tasks, submit pull requests, develop plugins using standardized modules, or share feedback via issues or email the maintainer.