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LeoCAD project preview
DesignAlternative to LEGO Digital DesignerAlternative to MecabricksAlternative to BrickLink Studio

LeoCAD

Virtual LEGO CAD design program compatible with the LDraw standard parts library.

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LicenseGPL-2.0
GitHub stars1.8k
Last commit1 weeks ago
Tags6 topics
Qt5DesignBrick ModelingCppLego CadLdraw Bricks
Overview

Why consider LeoCAD?

LeoCAD is a cross-platform CAD application for creating virtual LEGO models. Written in C++ and Qt, it accesses over 10,000 official LEGO brick parts from the LDraw library, complete with snapping connection points and step-by-step building instruction generator.

Guided learning

Learn LeoCAD by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of LeoCAD

LeoCAD allows builders to design custom brick structures and export parts lists directly for BrickLink purchasing.

Installation

bash
1# Ubuntu
2sudo apt install leocad
3
4# macOS via Homebrew
5brew install --cask leocad

LeoCAD is licensed under the GNU General Public License v2.0 (GPL-2.0).

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LeoCAD FAQs

LeoCAD is listed as a Design tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

LeoCAD is listed under the GPL-2.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

LeoCAD is listed as an alternative to LEGO Digital Designer. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.