NaroCAD for PC: How to Download & Install on Windows

Introduction

If you want to design mechanical parts in 3D without paying for a CAD licence, NaroCAD is the free program that lets you do it. It is a free and open-source parametric 3D CAD program for Windows, built on the Open CASCADE kernel, with sketches, extrusions, booleans and STEP and IGES import and export, and it is one of the few truly free CAD programs that runs natively on Windows. There is no payment, no account and no serial number, and the download from the official SourceForge page is the complete program.

This guide explains what NaroCAD 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 NaroCAD on Windows and use it in a real project.

NaroCAD is best for parametric 3D CAD, mechanical part design, and learning CAD modelling. 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 NaroCAD?

NaroCAD is a free 3D CAD program that you install on your Windows PC and use to design parts and models. In simple terms, it is a program where you draw a 2D sketch, turn it into a 3D shape by extruding or revolving it, and combine shapes with booleans to build a finished part: you sketch a profile, extrude it into a solid, cut holes in it, and export the result as a STEP or IGES file for manufacturing or 3D printing. You open it, sketch, and build.

What makes NaroCAD useful is its parametric design and its openness. Because it is parametric, you can change a sketch dimension later and the whole model updates, which is how professional CAD works, and because it is open source, the program is free forever with no licence server and no subscription. It also imports and exports STEP and IGES files, so it can exchange models with other CAD programs. Three honest notes: NaroCAD is a legacy program, with the last release, version 1.6.0, dating back several years; it is Windows-only, with no Mac or Linux version; and its interface and toolset are simpler than a modern commercial CAD package, so it suits learning and simple parts better than complex assemblies.

Key Features

Parametric 3D modelling: Parametric modelling lets you change a sketch dimension later and watch the whole model update.
Sketch-based design: Sketch-based design turns 2D profiles into 3D solids by extruding, revolving and sweeping.
Boolean operations: Boolean operations combine shapes with union, subtraction and intersection.
STEP and IGES exchange: STEP and IGES import and export let you exchange models with other CAD programs.
Open CASCADE kernel: An Open CASCADE kernel gives you solid modelling that is compatible with professional CAD.
Free and open source: NaroCAD is free and open source, with no licence server and no subscription.
Windows native: A native Windows program that installs and runs like any other desktop CAD tool.
Lightweight and simple: A lightweight program with a simple interface, so it runs well on older laptops.

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 download and program files
Graphics: Any graphics card with OpenGL support
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: NaroCAD is designed for normal Windows PCs, and a modest modern computer is enough to start.

How to Download NaroCAD (Official Method)

The only safe place to download NaroCAD 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://sourceforge.net/projects/narocad/

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

Open the official NaroCAD SourceForge page — Open https://sourceforge.net/projects/narocad/ in your browser.
Download the Windows installer — Find the latest release, version 1.6.0, and download the Windows installer to your Downloads folder.
Run the installer — Double-click the downloaded installer file and follow the setup wizard to install NaroCAD.
Choose the install location — Accept the default install location, or choose a folder with enough free space.
Finish the installation — Wait for the installer to finish, then close the setup wizard.
Launch NaroCAD — Open NaroCAD from the Start menu or the desktop shortcut and confirm it opens without an error.
Create your first sketch — Start a new document and draw your first 2D sketch, so you know the program is working.

Tip: If the installer asks about extra components, keep the default choices unless you know you need something different. Most install problems come from changing a folder or skipping a component.

How to Model Your First Part with NaroCAD

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

Start a new document — Open NaroCAD and start a new document.
Draw a 2D sketch — Draw a simple 2D profile, such as a rectangle, on the sketch plane.
Extrude the sketch into a solid — Extrude the sketch into a 3D solid, so you have your first part.
Cut a hole in the part — Draw a circle on the top face and cut it through the part, so you have a hole.
Change a dimension — Change the sketch dimension and watch the model update, to see parametric design in action.
Export the part as STEP — Export the finished part as a STEP file, so you can share it or print it.
Save your project — Save the NaroCAD project, so you can open it again and keep working on it.

Is NaroCAD Free?

NaroCAD is free and open source. You download it from the official SourceForge page, install it, and use it without paying and without a time limit. There is no paid version of NaroCAD itself. Be aware of three honest limits: it is a legacy program, with the last release, version 1.6.0, dating back several years; it is Windows-only, with no Mac or Linux version; and its toolset is simpler than a modern commercial CAD package, so it suits learning and simple parts best.

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 NaroCAD 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 NaroCAD work on my Windows PC?

Yes, in most cases. NaroCAD 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 NaroCAD 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 NaroCAD itself.

Do I need a powerful PC to run NaroCAD?

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

NaroCAD is a useful, free addition to a Windows setup because it is a free open-source parametric 3D CAD program for designing mechanical parts on Windows, 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 NaroCAD from the official website here: https://sourceforge.net/projects/narocad/ 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.