LDraw

LDraw is a digital platform used for creating, sharing, and viewing detailed virtual models of LEGO builds. It provides a standardized, text-based file format that describes each LEGO piece and its placement within a model. This allows enthusiasts and designers to collaborate, plan, and visualize complex LEGO structures on a computer before building physically. LDraw's extensive library and community-driven resources make it a valuable tool for hobbyists, educators, and professionals interested in precise LEGO design and engineering.