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.

Dec 29, 2020
This update adds 1315 new files to the core library, including 829 new parts and 66 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

Curved Patterned Part/Sticker Question
Jan 20, 2021
"My question pertains to patterned parts/stickers. Once you add pattern to the curved part, even..."
i need someone to help me make this robot arm work
Jan 18, 2021
"there's this robot arm made by Magnus Forsberg that refuses to import correctly into stud.io's..."
Parts 72490c01, 72490a, & 72490b
Jan 18, 2021
"Hello, I was just trying to build a Lego Blimp/Zeppelin for Lego Ideas in Stud.io, but sadly none..."
Braided String donor
Jan 17, 2021
"I've done a string and modified its path to suit my needs (top part). Is there any way to add a..."
1:87 model vehicles?
Jan 11, 2021
"This is mainly idle curiosity, since I think I can guess at the answer and the reasons behind it,..."
Signpost cantilever (Classic town and Legoland)
Jan 10, 2021
"I've submitted the missing part (Signpost cantilever with Shell pattern) in set 601 as u454p01...."
invalid character 'O' during part review
Jan 9, 2021
"Hi, I just ran into a funny PT error: I did a part review and received the crazy error message:..."
Recommended Digital Calipers for measuring parts (+ rare Clutch Test Implements.)
Jan 8, 2021
"I recently got my hands on some rare parts which are used to test LEGO parts.  They are described..."

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