Tldraw is an open-source toolkit that empowers developers to build collaborative whiteboard apps and custom canvas-based interfaces using React. At its core is the tldraw SDK, which abstracts the complexities of real-time drawing, multi-user synchronization, and shape management—allowing teams to focus on product features rather than low-level canvas code. Whether you’re building tools for brainstorming, diagramming, mind mapping, or product design, tldraw provides the foundation to make it interactive and scalable.
Used by companies like ClickUp, Mobbin, Craft, and Glean, the SDK is designed for flexibility and extensibility. It supports custom shapes, multiplayer collaboration, plugin development, and precise control over drawing behaviors. The project is actively maintained and supported by a growing open-source community, with over 39,000 stars on GitHub and extensive documentation to help developers get started quickly.
