What is LDraw?

LDraw™ is an open standard for LEGO CAD programs that allow the user to create virtual LEGO models and scenes. You can use it to document models you have physically built, create building instructions just like LEGO, render 3D photo realistic images of your virtual models and even make animations. The possibilities are endless. Unlike real LEGO bricks where you are limited by the number of parts and colors, in LDraw nothing is impossible.

Get Started

Find out how to get started on Windows, Mac or Linux

LDraw All-In-One-Installer

Windows users can use the LDraw All-In-One-Installer, in short AIOI, if they want a quick and easy way to install the LDraw Parts Library and many of the popular 3rd party tools as well.

News
Feb 16, 2019

An updated version of the LDraw All-In-One-Installer, in short AIOI, has been released.

[More]
May 8, 2018

An updated version of the LDraw All-In-One-Installer, in short AIOI, has been released.

[More]
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Parts Update 2018-02

Date: 8 Dec 2018
This update adds 1019 new files to the core library, including 540 new parts and 21 new primitives.

Find tutorials
Here you can learn techniques to enhance your proficiency with various programs of the LDraw System Of Tools. Easy to follow step by step instructions teach you everything from using software programs to creating stunning renderings.
Recipient 2017
Chris Dee
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LDraw is a completely unofficial, community run free CAD system which represents official parts produced by the LEGO company.