LDraw is described as 'open standard for LEGO CAD programs that allow the user to create virtual LEGO models and scenes' and is an app in the Photos & Graphics category. There are more than 10 alternatives to LDraw for Windows, Mac, Linux, Online / Web-based and Sketchup. The best alternative is SketchUp, which is free. Other great apps like LDraw are LEGO Digital Designer (Free), LeoCAD (Free, Open Source), Mecabricks.com (Free) and Stud.io (Freemium).
- 14 alternatives
- Free, CAD-like design tool for building LEGO models using official LEGO bricks and parts. View 10 alternatives to LEGO Digital Designer
Discontinued as of 2018, as it's website shows (https://web.archive.org/web/20180209234326/https://www.lego.com/en-us/ldd/)
- Free • Proprietary