Dune 3D for PC: How to Download & Install on Windows

Introduction

If you want a modern, simple CAD program for making precise parts without paying a subscription, Dune 3D is the free tool to try. It is a free, open-source parametric 3D CAD application by Lukas K, the developer of the Horizon EDA electronics tool, and it combines the solver and workflow from SolveSpace, the Open CASCADE geometry kernel and the Horizon EDA interface into one small, focused program. It is designed for the basics done well: sketch a shape, extrude or lathe it into 3D, and export it for 3D printing. There is no payment, no account and no serial number, and the download from the official Dune 3D site is the complete program.

This guide explains what Dune 3D is, what it can and cannot do, what your PC needs to run it, and how to download and install it from the official website only. You will also get a first-use walkthrough that takes you from installation to a working result in a few minutes. By the end, you should be able to install Dune 3D on Windows and use it in a real project.

Dune 3D is best for simple parametric CAD parts, 3D-printed enclosures, and learning CAD without a subscription. Because it is free and legitimate, you do not need a cracked copy or an unknown download site. The official website provides the installer, and the free version is a real, permanent tool, not a short trial.

What Is Dune 3D?

Dune 3D is a free CAD program that you install on your PC for making precise 3D models. In simple terms, it is a program where you sketch a 2D shape with lines, arcs and Bezier curves, add dimensions and constraints so the sketch stays exact, and then use tools such as extrude or lathe to turn the sketch into a solid 3D part. You can build enclosures, brackets, adapters and other functional parts, and export them for 3D printing or for other CAD programs.

What makes Dune 3D appealing is its simplicity and its modern code. Unlike the big, sprawling CAD programs, it does a small number of things and does them clearly, which makes it one of the easiest free CAD tools to learn, and its Windows installer makes setup simple. It supports DXF export, added in version 1.4.0, and it runs on Windows and Linux. Two honest notes: Dune 3D is a young project, so it does not provide the wide range of functions of more established tools such as FreeCAD, and it is best for simple parts rather than large assemblies. The current version is v1.4.0, released on 5 February 2026, and it is licensed under GPLv3.

Key Features

Parametric sketching: Sketch shapes with lines, arcs and Bezier curves, with dimensions and constraints that keep them exact.
Extrude and lathe tools: Turn a 2D sketch into a solid 3D part with extrude, lathe and other solid tools.
SolveSpace solver: Uses the SolveSpace constraint solver, so sketches stay fully defined and editable.
Open CASCADE kernel: Built on the Open CASCADE geometry kernel, the same core used by many professional CAD tools.
DXF export: Export sketches and profiles in DXF format, added in version 1.4.0.
Simple Windows installer: A straightforward Windows installer gets you from download to modelling in minutes.
STL export for 3D printing: Export finished parts as STL files, ready for any 3D printer slicer.
Free and open source: Dune 3D is free and open source under GPLv3, so it stays free forever.

System Requirements

Operating System: Windows 10 or Windows 11, 64-bit
Processor: A modern dual-core processor or better
RAM: At least 4 GB of RAM for basic use
Storage: Around 200 MB of free disk space for the program and your projects
Graphics: A graphics card that supports OpenGL, which almost every modern PC has
Other: A stable internet connection for the download, and a mouse for working in 3D

These are practical, modern Windows guidelines, not a word-for-word copy of an official specification table. The most important point is simple: Dune 3D is designed for normal Windows PCs, and a modest modern computer is enough to start.

How to Download Dune 3D (Official Method)

The only safe place to download Dune 3D is the official website. Do not download it from random file mirrors or "free download" portals, because those copies may be outdated or bundled with unwanted software. The official site is the source of truth for the current version.

Official download link: https://dune3d.org/

On the official Dune 3D website, download the Windows installer, an .msi file, to your Downloads folder. There is no account, serial number or payment involved at any point. If a site asks you to pay for Dune 3D, or offers a cracked version of it, leave that site and return to the official Dune 3D page.

Step-by-Step Installation

Follow these steps in order. Take your time with the install location and component choices, because those are the steps that most often cause problems later.

Download the installer from the official site — Open https://dune3d.org/ in your browser and download the Windows installer for Dune 3D.
Run the installer — Double-click the downloaded .msi installer file and follow the on-screen prompts on your Windows PC.
Choose the install location — Keep the default install folder unless you have a reason to change it, then note that folder for later.
Finish the installation — Wait for the installer to finish, then close it and open Dune 3D from the Start menu.
Confirm the first launch — Dune 3D opens with an empty document and its sketching tools. Click through any welcome screens.
Open the tutorial — Open the built-in tutorial from the help menu and follow its first steps to learn the workflow.
Sketch a test shape — Draw a simple rectangle in a sketch and confirm the constraint tools respond.

Tip: Dune 3D is a young project with a small, focused toolset, so it is best for simple parts and enclosures rather than large assemblies. Work through the built-in tutorial first: it is the fastest way to learn the sketch-and-extrude workflow.

First-Use Walkthrough: Your First 3D-Printed Enclosure

This walkthrough is a simple first project. It is not a full course, but it will help you see Dune 3D working on a real project and learn its main tools.

Open Dune 3D and start a new document — Open the program and create a new empty document.
Sketch the base rectangle — Draw a rectangle in a new sketch and add dimensions for its width and depth.
Extrude the base — Use the extrude tool to turn the rectangle into a solid base of a few millimetres thick.
Sketch the walls — Add a second sketch on top of the base and draw the wall outline.
Extrude the walls upward — Extrude the wall sketch upward to form the sides of your enclosure.
Add a lid lip — Add a small lip or step on the top edge, so a lid can sit on the enclosure.
Export as STL — Export the finished enclosure as an STL file, ready to open in your 3D printer slicer.

Is Dune 3D Free?

Dune 3D is free and open source under GPLv3. You download it from the official Dune 3D site, install it, and use it without paying and without a time limit. There is no paid version of Dune 3D itself. Be aware of two honest limits: it is a young project with fewer features than established CAD tools such as FreeCAD, and it suits simple parts and enclosures better than large assemblies.

That free status is important for this guide. All the steps here use the official download only, and they do not involve cracks, activators or licence keys. If you ever see a site offering a paid or cracked version of the free program, treat it as unsafe and return to the official site.

Frequently Asked Questions

Is Dune 3D safe to download?
Yes, when you download it from the official website only. The official installer is the version made by the developer. Avoid third-party sites that bundle extra software or ask for payment for a free program.

Does Dune 3D work on my Windows PC?
Yes, in most cases. Dune 3D runs on Windows 10 and 11 (64-bit), and the system requirements above cover a normal modern PC. Check the official site for the exact current version if your PC is older.

Is Dune 3D really free, or will it stop working?
The free version described in this guide is not a short trial. It stays usable after installation. There is no paid edition of Dune 3D itself.

Do I need a powerful PC to run Dune 3D?
No, not for basic use. A modern Windows 10 or 11 PC with 4 GB of RAM or more can run it for simple projects. Larger projects with many objects and effects will benefit from more RAM and a faster processor, but you can start and learn on a normal home PC.

Conclusion

Dune 3D is a useful, free addition to a Windows setup because it is a free open-source parametric 3D CAD application for precise mechanical parts and enclosures, and it can be downloaded safely from the official site. Start with a small first project, learn one tool at a time, and build from there.

To get started, download Dune 3D from the official website here: https://dune3d.org/ Install it with the steps above, test it once, and then use it in your next project. With a little practice, it can become a regular part of your workflow.