Aircad

About

A browser-based CAD system for 2D drafting and 3D modeling, with NURBS solid modeling, push/pull editing, built-in block libraries, version history and realtime multiplayer editing. An AI agent works inside the drawing to answer questions and propose edits that the user reviews before applying. The author says it reads and writes DXF, DWG, STEP and 3DM files and exposes a scripting API.