QCAD

QCAD is a free, open-source application for two-dimensional (2D) computer-aided drawing (CAD).

With QCAD you can create building plans, interiors, mechanical parts or technical drawings such as schematics and diagrams. QCAD runs on Windows, macOS and Linux. The source code of QCAD is released under a popular Open Source license, GPL version 3 (GPLv3).

layers
Blocks (grouping)
35 CAD fonts included
Support for TrueType fonts
Various Metric and English units
DXF and DWG input and output
Scale printing
Printing on multiple pages
More than 40 construction tools
More than 20 modification vehicles
Creating and modifying points, lines, arcs, circles, ellipses, splines, polylines, text, sizes, hatches, fills, raster images
Various powerful asset selection tools
object snaps
measuring instruments
Parts library with over 4800 CAD parts