tldraw

What Is tldraw?

tldraw is a compact and user-friendly drawing app in the design-tools category, offered as a free, open-source platform. It provides an infinite canvas architecture built on TypeScript and React, optimized for whiteboarding, diagramming, and mind mapping tasks within design workflows. tldraw functions primarily as a developer SDK with a demo application, enabling users to create interactive sketches, annotations, and collaborative boards that integrate into web applications. Designers and developers use tldraw early in the process for ideation, prototyping wireframes, and visualizing concepts before moving to more structured tools.

What tldraw Does

• Delivers an infinite canvas with WebGL rendering for smooth handling of complex drawings and large-scale diagrams.
• Supports real-time multiplayer collaboration, including live cursor tracking, viewport following, and instant change synchronization across clients.
• Allows extreme customizability through its SDK, enabling modifications to shapes, behaviors, UI elements, themes, and programmatic control of canvas state.
• Includes tools for pressure-sensitive digital ink, geometric shapes, arrows with advanced geometry for connections, and bindings for shape interactions like drag-and-drop.
• Provides accessibility features such as screen reader support and extensive keyboard navigation for shapes and UI elements.
• Integrates with external APIs, including AI models like OpenAI GPT-4V or Gemini, for generating content from sketches or processing diagrams via natural language.

How tldraw Can Be Used

• Whiteboarding and brainstorming in team sessions, where multiple users draw, annotate, and follow each other's cursors in real time for remote project planning.
• Diagramming complex data structures, such as converting JSON, XML, or CSV into visual trees, graphs, or family trees with custom layouts and editable side panels.
• Wireframing and prototyping UI designs, including generating HTML code from hand-drawn sketches using integrated AI apps like makereal.
• Building custom applications, such as PDF annotators, interactive games, or enterprise tools with SSO, backend integrations, and domain-specific validations.
• Mind mapping and mind mapping with AI assistance for creating diagrams, artistic renderings, or dynamic prototypes connected to databases like Convex.

Who Is tldraw For?

tldraw serves individual developers, hobbyists, startups, SMBs, and enterprises needing flexible whiteboarding infrastructure. It fits developers building embeddable custom tools, designers creating wireframes or prototypes, and teams requiring real-time collaboration for diagramming and sketching. Experience levels range from those seeking immediate usability in the open-source app to advanced users extending the SDK for specialized workflows like data visualization or AI-driven design. Visit tldraw