QCAD — #5 Alternative to AutoCAD / Fusion 360
Precision 2D technical CAD drafting with ECMAScript automation and low-cost Pro perpetual option
Provides over 40 construction tools, 35 CAD fonts, imperial/metric dimensioning, and clean SVG/PDF/DXF plotting.
License: GPL-3.0 · Pricing: Open Core · Compare all AutoCAD / Fusion 360 alternatives · Official Website