LeoCAD.org

LeoCAD.org is an open-source project maintained by developer Leonardo Zide, offering a specialized CAD application that enables users to design virtual LEGO® models on Windows, macOS and Linux. The software provides a digital brick library containing thousands of official LEGO® parts, from basic bricks and plates to specialized Technic components and minifigure accessories, allowing hobbyists, educators and professional set designers to construct elaborate 3D models without physical inventory constraints. Typical use cases range from casual builders planning their next creation and AFOLs (Adult Fans of LEGO) documenting custom MOCs (My Own Creations) to teachers demonstrating engineering principles through hands-on virtual prototyping and stop-motion animators pre-visualizing sets. LeoCAD supports layered building steps, instruction generation, part lists with cost estimation, and exports to popular formats such as LDraw, STL and OBJ for 3D printing or rendering in external visualization suites. The lightweight program runs on modest hardware, offers step-by-step model animation, and integrates with community part repositories that continuously expand the available palette of bricks and colors. LeoCAD is available for free on get.nero.com, where the latest Windows build can be downloaded and installed directly through trusted package sources like winget, ensuring users always receive the most recent stable release alongside any other applications they select for batch installation.