Real-time Collaborative Coding

Code Together,
Instantly.

A real-time collaborative coding platform where developers write, edit,
and execute code together in a shared online editor.

main.js — CodeDuo
1 // Two developers, one editor ✨
2 function collaborate(developers) {
3 return developers
4 .map(dev => dev.writeCode())
5 .reduce(merge);
6 }

Everything you need to code together

Real-time Collaboration

Code together with live cursor tracking, instant sync, and awareness of who's editing what.

Multi-Language Support

Write in JavaScript, TypeScript, Python, C, C++, and Java with full syntax highlighting.

Secure Execution

Code runs in isolated sandboxed containers. Your code is executed safely and securely.

Instant Rooms

Create a room in one click, share the link, and start pair programming instantly.

VS Code Themes

16+ beautiful editor themes including One Dark, Dracula, Monokai, Nord, and more.

Integrated Console

Built-in I/O console with stdin support, stdout/stderr display, and execution metrics.

Supports your favorite languages

JavaScript
TypeScript
Python
C
C++
Java

Ready to code together?

Create a room and share the link. It's that simple.

<CD/> CodeDuo

Built for developers who love to collaborate.