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Software · 3D, CAD & electronics

LeoCAD

Design virtual models you can build with LEGO bricks.

  • Completely free
  • Windows, macOS and Linux
  • Open source
  • No account

Overview

LeoCAD is a CAD program, available on Windows, macOS and Linux.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “CAD application for designing virtual models with LEGO bricks” — official website, 10 November 2026

At a glance

All of LeoCAD is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-2.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No account needed
  • Commercial use allowed

About

LeoCAD is a CAD program for creating virtual LEGO models. It's available for free under the GNU Public License v2 and works on the Windows, Linux and macOS Operating Systems.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Unspecified source (platforms) —
  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Facts collected from Winget (Windows Package Manager) (credit card, account, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 6 November 2026
  • Description from Flathub — AppStream (Flathub)

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