CADClone

CADClone is a lightweight, modern, and zero-installation 2D Computer-Aided Design (CAD) application running directly in the browser and as an offline Progressive Web App (PWA). Designed for architects, engineers, designers, and students, it provides a familiar drafting experience with full AutoCAD-compatible command line parity and standard keyboard shortcuts.

Key Highlights:

• AutoCAD-Compatible Command Line: Type standard shortcuts like L (Line), REC (Rectangle), C (Circle), M (Move), CP (Copy), RO (Rotate), TR (Trim), EX (Extend), O (Offset), F (Fillet), CHA (Chamfer), DIM, H (Hatch), and PURGE.
• DXF Import & Export: Full client-side DXF parsing and export, ensuring seamless round-trip interoperability with AutoCAD, LibreCAD, QCAD, and standard vector software.
• PDF Underlay & Calibrate: Import architectural PDF blueprints or satellite imagery as canvas background underlays, calibrated to exact real-world scale (1:1) with a two-point distance reference.
• Multi-Tab Workspace: Open and edit multiple drawings concurrently with independent undo/redo stacks, layers, and viewports.
• Paper Space Layouts & PDF Vector Export: Switch between Model Space and Paper Space (A4, A3, A2, A1, A0) in Portrait or Landscape orientations, complete with technical title blocks and direct print to vector PDF.
• Intelligent OSNAP Engine: Magnetic object snapping supporting Endpoint, Midpoint, Center, Intersection, Perpendicular, Tangent, Nearest, and Quadrant with visual markers.
• Built-in ABNT & Architectural Blocks: Ready-to-use symbol library including doors, windows, sanitary fixtures, electrical symbols, furniture, north arrows, and level markers.
• 100% Offline & Private: Works completely offline via Service Workers and local caching. Your drawings never leave your browser unless you choose to export them.