Open 2D Studio

Open 2D Studio is a free, open-source 2D CAD application built for architects,
engineers, and designers who need professional drafting tools without expensive
subscriptions.

Features:

- Drawing tools: Line, Rectangle, Circle, Arc, Polyline, Ellipse, Spline, Hatch
- Modify tools: Move, Copy, Rotate, Scale, Mirror, Offset, Trim, Extend, Fillet
- Structural tools: Beams, Piles, Walls, Slabs, Plate Systems, Gridlines, Levels
- Sheet management: Multiple drawings, sheets with title blocks, viewports
- Dimension tools: Linear, aligned, angular, radius, diameter, spot elevation
- Annotation tools: Text, leaders, section callouts
- Layer management with visibility, lock, and color control
- Snap and tracking: endpoint, midpoint, center, intersection, perpendicular, polar
- Grid and ortho mode
- Undo/redo with full history
- IFC export for BIM interoperability
- Print dialog with PDF export
- Customizable Quick Access Toolbar
- Multiple themes: Dark, Light, Blue, High Contrast
- No telemetry, no data collection, no subscriptions