QCad Download User-friendly 2D CAD solution for precise technical drawings and professional design projects Download User-friendly 2D CAD solution for precise technical drawings and professional design projects Vote (3 votes) Program license Trial version Developer Ribbonsoft Version 3.32.4 Works under Windows Also available for Mac Vote (3 votes) Developer Ribbonsoft Works under Windows Windows 98 SE Program license Trial version Version 3.32.4 Also available for Mac