Operating System Compatibility: Windows, macOS, Linux.We’re employing the term ‘free’ fairly loosely here – so you’ll find 100% free open-source options, pared-down free versions, and everything in between. You’ll find accessible user-friendly picks, feature-rich options for advanced designers, programs better suited to technical ends, and ones with a more artist-friendly seasoning. Thanks to the proliferation of free CAD software, with little compromises compared to paid CAD programs, even cash-strapped budding bedroom designers can get their hands on one. To help you out, we’ve pulled together the top free CAD software tools so you can create professional-level pieces, without the cost. Many of the top professional software used in industry languishes behind pricey paywalls, out of reach of the average designer.