CADDeck
CADDeck is a free 3D design platform focusing on assembly modeling, version control, and collaboration. Multiple users can co-edit designs in real time, with a built-in chat. The system keeps a revision history, allowing rollbacks. CADDeck includes parametric sketching tools for dimensioning. A cloud rendering module generates photo-realistic images. By combining real-time collaboration with parametric modeling, CADDeck suits teams or open-source communities wanting a no-cost, browser-based CAD environment with shared editing capabilities.