tldraw
Free tierFree and instant collaborative whiteboarding for everyone
Free tier available·All audiences·Powered by OpenAI·API available·Open source
Key strengths
Real-time multiplayer collaboration with zero setupOpen-source and embeddable as an SDK/libraryInfinite canvas with rich drawing and diagramming toolsAI-powered features for generating diagrams and UI mockupsLightweight, instant, and browser-based — no install required
Free tier + paid plans
London, United Kingdom
Founded 2021
Self-hostable
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- Embedding a collaborative whiteboard into a SaaS product or internal tool using the
<Tldraw />React component with a custom sync backend. - Building AI-powered diagramming tools by integrating LLM APIs with tldraw's canvas snapshot export to convert sketches into code, diagrams, or UI components.
- Creating custom diagramming DSLs using tldraw's extensible shape/tool system to render domain-specific nodes (e.g., architecture diagrams, flowcharts, circuit schematics).
- Prototyping and design handoff by programmatically creating and manipulating shapes via the
EditorAPI, then exporting to SVG for downstream pipelines. - Real-time multiplayer experiences using
@tldraw/syncwith a self-hosted WebSocket server and CRDT-based conflict resolution for offline-first scenarios.