xuất hiện Source 2D-CAD is a không lấy phí Open Source CAD application for Windows, Apple & Linux. Support và documentation are không lấy phí from our large, dedicated community of users, contributors & developers.

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You, too, can also get involved!



About us

How it started started as a project to lớn build CAM capabilities into the community version of QCad for use with a Mechmate CNC router.

Since QCad CE was built around the outdated Qt3 library, it had to lớn be ported khổng lồ Qt4 before additional enhancements. This gave sầu rise to CADuntu.

The project was known as CADuntu only for a couple of months before the community decided that the name was inappropriate. After some discussion within the community và retìm kiếm on existing names, CADuntu was renamed to lớn

Porting the rendering engine khổng lồ Qt4 proved to lớn be a large task, so initially still depended on the Qt3 support library. The Qt4 porting was completed eventually during the development of 2.0.0 series, thanks to our master developer Rallaz, and has become Qt3 không tính tiền except in the 1.0.0 series.

Meanwhile, for 2.2.0 series, Qt5 is mandatory. Features is a feature-packed & mature 2D-CAD application with some really great advantages:

Completely and Utterly Free

No worries about trials, subscriptions, license costs or annual fees.

mở cửa Source và GPLv2

Developed by an experienced team and supported by an awesome community, is also miễn phí to lớn hachồng và copy.

No Language Barriers

It"s available in over 30 languages with cross-platsize tư vấn for macOS, Windows, và Linux. Download


Help is needed for macOS deployment.

from SourceForge Find latest stable DMG packages there.

from GitHub Find lakiểm tra stable DMG packages there.


from SourceForge Find latest stable EXE installer there. Also automated nightly build installer for bleeding-edge versions.

from GitHub Find lademo stable EXE installer there. Also special prerelease installer for beta testing versions.


Cheông chồng your distributions preferred package manager, if is available there. But the version may be a bit older. For Debian/Ubuntu distributions, you can use our Launchpad PPAs for stable or daily versions.

Build from source

This is an option for all platforms.

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If we don"t have the binary installer you are looking for, you can try lớn build from source code. How this works for each platform can be read in our Wiki .

Source code could be downloaded from GitHub as ZIPhường archive.

Or you can clone or fork our repository, which is recommended if you plan lớn contribute.

Join Community

The team is a small group of dedicated people. Lots of things have sầu been worked out, but plenty of bugs và features are still waiting to be solved. How can you help? We need all the skills in the community as coders, writers, testers or translators.

An open source community is a dynamic thing; people come & go as their private situation drives or stops them contributing. So, it will always help if you have existing resources we can use, know what other projects bởi vì in specific areas, or, most importantly, bởi vì what you vì chưng best & have sầu fun doing it! You don"t have sầu to lớn sign a lifetime contract to lớn contribute. Whether you can help others in the forum, garden the wiki, or apply one or many patches, our broad user base will appreciate your work.

Come join our community, và contribute in any way you like.


If you are an outstanding developer in C++ or a beginner we can use your help. With a bit of determination, the IRC channel, Zulip chat và the Libre-CAD-dev mailing danh sách, we can help you get started and make progress. All you need is linked in tải về section & top link above sầu.


Developers usually make bad documentation for users, so if you like making documentation, great! There have been extensive sầu GUI changes in 2.1 series which need to be documented.


Help localize, we currently tư vấn over 30 languages. Our translation VPS is over here: . You can complete new languages, or request creating translations for a new language in the forum . Friends & Sponsors

As a non-profit, community driven open source project is dependent on having good relationships with friends và sponsors.




BRL-CAD is a powerful open source cross-platform solid modelling system that includes interactive sầu geometry editing, high-performance ray-tracing for rendering & geometric analysis, a system performance analysis benchmark suite, geometry libraries for application developers, & more than 30 years of active development.

BRL-CAD và collaborate in Google programs. We participate under the umbrella of BRL-CAD in Google Code-in and Google Summer of Code where we mentor school pupils và students in participating in open source projects.




JetBrains has generously supplied us with CLion licenses for the development of This powerful IDE helps you develop in C và C++ on Linux, OS X & Windows, enhancing your productivity with a smart editor, code chất lượng assurance, automated refactoring, & deep integration with CMake build system.

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