Tldraw Computer

Original Article ↗ Hacker News Discussion ↗

What Tldraw Computer Is

  • Visual, node-based interface for building LLM workflows on an infinite canvas.
  • Users wire together text, images, and instructions so outputs of one block feed into others, with branching, looping, and iteration.
  • Described as similar to Yahoo Pipes / ComfyUI / Orange Data Mining, but for LLMs.

User Impressions and Use Cases

  • Many find the interface “toy-like” but compelling and potentially powerful.
  • Strong enthusiasm for it as a creative playground for AI tinkering, data transformations, idea pipelines, and “agentic” systems.
  • Example use cases mentioned: image workflows, literature review helpers, tweet/news bots, process mapping, and generating semi-functional websites.
  • Some see it as exactly how they’d like to develop systems: start with fuzzy AI-driven blocks, later swap in more deterministic components.

Comparison to Other Tools

  • Compared with draw.io and Excalidraw: those are diagram tools; this actually “runs” workflows.
  • Also compared to Heuristica, Wordware, Dify, ComfyUI: same broad space (visual AI pipelines), but Tldraw Computer emphasizes a more playful, canvas-native UX.

Licensing, Business Model, and Core Product

  • Tldraw’s core business is an SDK for whiteboards/infinite canvases; Computer is positioned as R&D, marketing, and “fun.”
  • The main tldraw SDK recently moved from Apache 2.0 to a more restrictive “watermark-ware” license; older MIT/Apache versions exist but are not actively developed.
  • Excalidraw is noted as more permissively licensed (MIT).

Access, UX, and Reliability Issues

  • Requires email signup; reliance on an auth provider that blocks “disposable” domains, including some users’ preferred aliasing services.
  • Some friction: login redirects away from the original demo, projects found via “Examples,” blog page harder to re-access when logged in.
  • Reports of projects reverting to default state and reliance on browser local storage; user accounts and better cloud persistence are promised.
  • Mobile touch support is currently broken in key text interactions.

Education and Kids

  • Seen as a promising tool to introduce kids to programming and AI through visual workflows.
  • One educator reports it’s “90% there” for generating code for assignments but notes missing headers, broken indentation, and HTML formatting issues, so supervision is needed.

Desired Features and Open Questions

  • Requests for: arbitrary code components, personal API keys / local models, structured-output controls, randomization tools, exportable workflow specs (e.g., JSON, BPMN-like), and a simpler UI-design / component-dragging mode.
  • Source for Computer is not currently available; future extensibility via data endpoints is hinted at but unclear.