Design buildings, collaborate in real time, and ship faster — entirely in your browser. No install. No lock-in.
No credit card required
Capabilities
Built from the ground up for the browser. Runs offline, syncs in real time, and integrates with every format your team uses.
2D & 3D drafting
Full-featured drafting tools — walls, doors, windows, slabs, roofs — with snap, trim, and parametric constraints.
Real-time collaboration
CRDT-backed multiplayer editing. Every cursor, every change, live — with conflict-free merging and version history.
AI design assistant
Describe a floor plan in natural language. The AI generates geometry, assigns materials, and checks building codes automatically.
IFC native
Import and export IFC 2x3 and IFC4. Full round-trip fidelity — properties, type hierarchies, and spatial structure intact.
Offline-first
Works entirely offline with IndexedDB persistence. Sync resumes automatically when your connection returns — zero data loss.
Open source
MIT-licensed core. Contribute, extend, and build on top of OpenCAD. No vendor lock-in, ever.
14
Days free, no card needed
IFC4
Native import & export
MIT
Open-source license
Create your account and get 14 days free. No credit card. Cancel any time.