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I built a real-time multiplayer 3D IDE with WebRTC voice chat and AI generation from scratch πŸš€

A developer built IA Code Studio, a real-time multiplayer 3D IDE with WebRTC voice chat and AI prompt-to-3D generation. The platform integrates a Monaco editor with an AI co-pilot for Three.js scenes, Firebase-powered multiplayer sync, and a DVR time-travel debugger. It offers free and pro tiers for collaborative 3D development.

read3 min views4 publishedJun 19, 2026

Hi DEV community! πŸ‘‹

I want to share a project I've been working on: IA Code Studio (https://ia-codestudio.com). It is a next-generation interactive WebGL playground and IDE designed to make building Three.js scenes, 3D widgets, and interactive websites as fast and collaborative as possible.

#

Here is the backstory of how it was built, the architecture behind it, and the features we packed into it.

#

🌟 The Core Features

πŸ€– 1. AI Prompt-to-3D Co-pilot Writing boilerplate code for WebGL and Three.js can be tedious (setting up renderers, cameras, lights, orbit controls, etc.).

The Solution: I integrated an AI assistant directly into the Monaco editor. You can prompt the AI in English or French to build a scene (e.g., "create a glowing wireframe grid with rotating metal spheres"), and it compiles and runs the WebGL code in real-time.

πŸ‘₯ 2. Real-Time Multiplayer Sandbox (DevSocial Hub)

Coding is better with friends. I wanted a way for developers to pair program in 3D: #

Real-time Sync: Powered by Firebase, multiple developers can join the same room code and code simultaneously. #

3D Laser Cursors: We created synchronized 3D raycasting cursors, so you can point at elements in the 3D preview and your teammate sees exactly where you are looking. #

WebRTC Voice Chat: No need for Discord or Zoom. We built high-fidelity peer-to-peer microphone voice channels directly into the browser tab using WebRTC.

βͺ 3. DVR Time-Travel Debugger & Time Machine (Local Version Control)

DVR Panel: A floating panel that lets you travel back and forth between execution states to see how variables change. #

Time Machine History: Automatically takes local snapshots of your code every 5 minutes and lets you restore any version with 1-click. All snapshots persist in localStorage

so they survive page refreshes!

πŸ“¦ 4. Standalone 1-Click Compiler

Once you are happy with your 3D creation (like our prebuilt Steampunk Chrono or Webcam Avatar widgets), you can export the entire workspace as a single, self-contained, offline-ready HTML file or a ZIP bundle. #

πŸ› οΈ The Tech Stack #

I wanted the application to load instantly and run smoothly, so I opted for a lightweight stack: #

Frontend: Vanilla HTML5, CSS3 (Glassmorphism design system), and Modern ES6+ JavaScript. #

3D Engine: Three.js (WebGL renderer, OrbitControls). #

Editor: Monaco Editor (the core engine behind VS Code). #

Database & Sync: Firebase (Firestore real-time listeners for cursor sync, Auth, and Hosting).

#

  • WebRTC Protocol: RTCPeerConnection API with Firestore-based signaling for the voice channels.

#

πŸš€ Try It Out!

The platform is live and offers a Preemium plan:

  • 🎁 Free Tier: You can try 3 of our interactive components/widgets completely free of charge.
  • ⚑ Pro Tier ($10/month): Unlock the full power of the AI co-pilot, real-time multiplayer coding sandboxes, custom 3D vector extruders, and unlimited exports. πŸ‘‰ Live Website: https://ia-codestudio.com I would love to get your feedback:
  • What features should we add next?
  • How does the platform feel? Let me know in the comments below!
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