Real-time collaborative whiteboard app built with React, TypeScript, Go, Redis, WebSockets, and Google Cloud Platform.
Designed to enable seamless visual collaboration between multiple users — perfect for brainstorming, wireframing, or classroom use.
- Real-time collaboration via native WebSockets
- Live presence tracking with dynamic user count
- Interactive whiteboard with drawing and color tools
- Persistent chat and canvas history stored in Redis
- Automatic cleanup of Redis data when all users disconnect
- Deployed on Firebase Hosting with CI/CD via GitHub Actions
- Backend built in Go — stateless WebSocket server deployed to Google Cloud Run
| Frontend | Backend | Cloud / DevOps |
|---|---|---|
| React | Go (Golang) | Firebase Hosting |
| TypeScript | Gorilla WebSocket | Google Cloud Run |
| Vite | REST/WebSocket APIs | GitHub Actions (CI/CD) |
| TailwindCSS | Redis | Docker |
- Room-based sessions with UUID for private collabrative canvas.
- Role-based access control as the host, guest, viewer-only, etc.
- Exporting the canvas as image or PDF.
- More tools including paint bucket, other types of brushes, and more.