LibreCAD started as a project to 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Since QCad CE was built around the outdated Qt3 library, it had to be ported to Qt4 before additional enhancements. This gave 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 and research on existing names, CADuntu was renamed to LibreCAD.

Porting the rendering engine to Qt4 proved to be a large task, so LibreCAD 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 LibreCAD has become Qt3 free except in the 1.0.0 series.

Meanwhile, for LibreCAD 2.2.0 series, Qt5 is mandatory.

Features

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.
  • No Language Barriers: It's available in over 30 languages with cross-platform support for macOS, Windows, and Linux.