LEGO Digital Designer

LEGO Digital Designer, or LDD, is a free computer program produced by the LEGO Group. The program allows users to build models using virtual LEGO bricks, in a computer-aided design like manner.

Free Mac OS X Windows

LDraw

LDraw is an open standard for LEGO CAD programs that allow the user to create virtual LEGO models and scenes.

Free Mac OS X Windows Linux

Konstruktor

Konstruktor provides a 3D environment on your screen in which you build Lego models out of predefined bricks and other subunits. The program comes with well over a...

Free Open Source Mac OS X Windows Linux

Mecabricks.com

Mecabricks is the first web service to publish and display 3D models made with LEGO® bricks. No need to install any plugin, it simply works.

Free Web

MLCAD

MLCad (Mike's Lego CAD) is a powerful CAD system specifically designed to create building instructions as known from Lego, for your own Lego models and creations....

Free Personal Windows

LeoCAD

LeoCAD is a CAD program for creating virtual LEGO models. It has an easy to use interface and currently includes over 6000 different pieces created by the LDraw...

Free Open Source Mac OS X Windows Linux

LDCad

ldcad is a multiplatform ldraw (virtual lego) editor that lets you edit ldraw model documents in real-time.

Free Personal Windows Linux

SR 3D Builder

SR3DBuilder is an advanced CAD to create and ANIMATE LEGO models on your PC. Features: Looking at some video worths more than 1000 words Support for PowerFunction and...

Free Personal Windows

Bricksmith

Bricksmith allows you to create virtual instructions for your Lego creations on your Mac. The magic is based on the LDraw library, a collection of 3D models of Lego...

Free Open Source Mac OS X