Meanwhile, for LibreCAD 2
2
0 series, Qt5 is mandatory

LibreCAD is a feature-packed and mature 2D-CAD application with some really great advantages:

Completely and Utterly Free

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

Open Source and GPLv2

Developed by an experienced team and supported by an awesome community, LibreCAD is also free to hack and copy

It's available in over 30 languages with cross-platform support for macOS, Windows, and Linux

from SourceForge
Find latest stable DMG packages there

from GitHub
Find latest stable DMG packages there

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

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

Check your distributions preferred package manager, if LibreCAD is available there
But the version may be a bit older

from GitHub
Find latest binary AppImage packages there

This is an option for all platforms

If we don't have the binary installer you are looking for, you can try to build LibreCAD from source code
How this works for each platform can be read in our Wiki

Source code could be downloaded from GitHub as ZIP archive

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

The LibreCAD team is a small group of dedicated people
Lots of things have been worked out, but plenty of bugs and 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 and 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 do in specific areas, or, most importantly, do what you do best and have fun doing it!
You don't have to sign a lifetime contract to 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, and 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 and the Libre-CAD-dev mailing list, we can help you get started and make progress
All you need is linked in download section and top links above

Developers usually make bad documentation for users, so if you like making documentation, great!
There have been extensive GUI changes in 2
1 series which need to be documented

Help localize LibreCAD, we currently support over 30 languages
Our translation server is over here: https://translate
librecad
org/
You can complete new languages, or request creating translations for a new language in the forum

LibreCAD Friends & Sponsors

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

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

BRL-CAD and LibreCAD 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 and students in participating in open source projects

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