CAD Assistant

CityCAD Viewer is a free tool for opening and exploring URB-format models created with CityCAD. It is completely free of charge and does not require any user registration or product activation. You cannot draw or modify elements such as streets or buildings, but you can use CityCAD Viewer to change assumptions on costs, values, sustainability information and other settings for each land use. We created CityCAD Viewer to help CityCAD users share their city models with colleagues, clients and other stakeholders. It is intended to enable easier collaboration on masterplanning projects. Open, explore and save CityCAD models. Select elements in a CityCAD model and view information about them. Change the group or phase of elements in a city model. View all city analysis panels (except the ‘advisor’ tab and advanced appraisal features). Add and edit simple costs and values to elements. Export images, reports, data and KML files. Access online database information.

Open and see any 3D part or assembly clearly—without expensive CAD software. 3D‑Tool lets you open, view, measure, and mark-up 3D CAD models in a simple, affordable way. Designers, engineers, and project managers can review parts from many CAD systems without needing the original software. The Premium and Advanced versions support 20+ file formats and let you share annotated models with anyone using the Free Viewer app. The Free Viewer opens native 3D‑Tool files (Those exported by a paid version of 3D-Tool) and STL files, making collaboration easy. The Premium version adds a powerful converter that turns native CAD files into STEP or CAT formats for use in NC, CMM, and other systems that can’t open the originals. Cross Sections • Exploded Views • 3D/2D Measure • Model Compare • Draft & Wall Analysis • Collision Check • Custom Views • Annotations • Publish EXE/DDD/3D‑PDF • STL/OBJ/3DS/PLY Export