OnlineBoard • Best free online whiteboard app in your browser
Onlineboard allows you to create a whiteboard where others see everything in real-time as you draw it. No login, multiple colors, export to PNG.
Categories:
Free browser-based real-time collaborative whiteboard for teams, educators, and friends to brainstorm, draw, and share ideas without installation.
🚀 Overview
Onlineboard.eu is a free online whiteboard that runs directly in your web browser, enabling real-time collaboration on an infinite canvas. Users can draw, zoom, pan, and interact with others' cursors instantly, mimicking a physical whiteboard experience remotely.
It solves the problem of remote collaboration where teams, teachers, or friends need to sketch ideas, diagrams, or even play games like tic-tac-toe without laggy tools or installations. Built for anyone from remote workers and educators to casual users, it emphasizes low-latency real-time syncing and simplicity—no accounts required to join via URL.
The project was created to deliver a 'game-changing' drawing experience where collaborators see strokes as they happen, optimized for performance across devices including desktops, tablets, and mobiles.
✨ Key Features
- Real-time collaboration with synchronized cursors and low-latency drawing visibility, crucial for explaining ideas during remote calls
- Infinite zoomable canvas with panning and viewport following, plus tools like multi-color pens, eraser, infinite undo, and straight lines
- Easy sharing via URL (no login for participants), customizable permissions (view/write), and export to PNG
- Cloud backup and board management for logged-in users, plus emotes for quick feedback (👍, 😂, etc.)
- Upcoming: Custom color sets and advanced PRO features currently free in beta
🛠 Tech Stack
- Frontend: JavaScript, HTML5 Canvas (inferred from real-time browser drawing)
- Backend: Not publicly disclosed
- Database: Not disclosed
- Auth: Keycloak
- Hosting: Not specified
👥 Who Is This For?
This project is useful for:
- Remote teams who want to brainstorm and diagram in real-time
- Teachers looking for simple online whiteboards for classes
- Indie makers and friends building fun remote games or casual sketching
📸 Screenshots / Demo
- Live demo: https://onlineboard.eu/new
- GitHub: https://github.com/onlineboard
🔥 Project Status
- 🟢 Actively building
Last updated: 2026-03-24
❓ FAQ
Is this project free?
Freemium (Basic use is free without registration; PRO features like advanced backups are free during beta, with paid plans planned).
Is the source code available?
No — proprietary software. GitHub org exists for related tools and forks.
Can I contribute?
Provide feedback, report issues via the site's manual/support contact, or suggest features. No open contributions to core code.
📬 Contact & Links
- Website: https://onlineboard.eu
- GitHub: https://github.com/onlineboard
- Twitter/X: N/A
- Email: Contact via site/manual
- Facebook: https://www.facebook.com/onlineboard.eu
Built with ❤️ and kept warm on WarmIndex.
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