- Konstruktor provides a 3D environment on your screen in which you build Lego models out of predefined bricks and other subunits.
- Free • Open Source
The official website is no longer available. Last version, 0.9.0-beta1, released in January 2011, and the sourcecode are still available on Github.
- MakerBrane is the only universal digital 3D toy builder. Build online with everything from LEGO to Meccano, K'nex, primitives and furniture. Design play sets, share them, view them in 3D in any browser. Nothing to install, it works even from school!.
- Free • Proprietary
- Sketchup Automation Tools is a Handy Toolbar Launcher that works special in Sketchup Pro Software. What this Launcher can do is instead of moving the Mouse Pointer to the Toolbars, the Toolbars comes to you in a Single Mouse/Stylus/Touch Click.
- Paid • Proprietary