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.

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.

Sep 06, 2020
This update adds 712 new files to the core library, including 510 new parts and 15 new primitives.
Give Back to LDraw.org

Enjoying LDraw? Please give back to the community. You can do this in several ways:

Become a parts author and submit parts to the Parts Tracker
Join us on the forums and help other users
Help out with various needed tasks

Here you can learn techniques to enhance your proficiency with various programs of the LDraw System Of Tools.

Recent parts submitted to the Parts Tracker

Recent LDraw images from flickr.com

Recipient 2020
Lasse Deleuran

Latest Forum posts

POV-Ray rendering in 2020
Oct 20, 2020
"I've been exploring lego rendering using the LDraw system over the last few months, and it's been..."
LDraw AIOI, LDView, the LDraw parts library, and LGEO.xml
Oct 20, 2020
"I've been learning my way around rendering using LDView & POV-Ray. Along the way I've learnt..."
James Jessiman Memorial Award for 2020 awarded to Lasse Deleuran
Oct 20, 2020
"The LDraw.org Steering Committee is pleased to announce that the 2020 James Jessiman Memorial..."
Some Gear Rotations are "disconnected"
Oct 18, 2020
"Hello I am new with LDCad (but not with CADD) and I am baffled with the following issue. For..."
Wiki fixed and site updates
Oct 16, 2020
"I've updated the wiki to the latest Mediawiki version. Apparently, some backend stuff has been..."
Creating patterns from official instructions
Oct 16, 2020
"According to Brickset's random set browser, my next project is 4012 Wave Cops . This will..."
Space / Insectoids
Oct 15, 2020
"Topic for the Space / Insectoids theme"
6436 Duplo Arch 4 x 10 x 3 with Glass (Skylight)
Oct 13, 2020
"Hi, I wonder if this could be done in LDRAW. really I'm mostly interested in the glass itself..."

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LDraw is a completely unofficial, community run free CAD system which represents official parts produced by the LEGO company.

LDraw™ is a trademark owned and licensed by the Estate of James Jessiman
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