Bringing together all the context builders need.
tldraw provides a fully controllable canvas for AEC teams to plan and ideate - collaboratively with their team and clients, based on their own data and sets of rules.
Why tldraw
Custom geometry, custom UI
Every shape and tool is replaceable. Add walls, ducts, beams, fixtures, even component families. The canvas is yours.


Clouds included
We learned from the best: the cloud shape is a must-have in a world of eternal angles. So we added it for you.

Precision drawing primatives
Snapping, alignment, measurement, and a coordinate system designed for technical work. Build BIM, MEP, and fully generative design.
Get Started
Two lines of code, a multiplayer canvas, and the same architecture that powers tldraw.com (http://tldraw.com).
What tldraw enables

Rapid prototyping
Bring all your proprietary context and rules together, as well as any custom LLMs, and rapidly iterate designs on an infinite canvas. All alongside your colleagues, safely on your own servers.

Annotation, review, and approvals
Mark up site plans, 3D snapshots, and engineering drawings. Multi-user review, threaded comments, and version history are all supported by the SDK.
"We chose tldraw because we can really see ourselves continuing to build in the long term with it. It's very extensible."
Build it with tldraw
Get Started
Two lines of code, a multiplayer canvas, and the same architecture that powers tldraw.com (http://tldraw.com).

