When searching for the "best" , you are likely dealing with the transition from legacy DesignCAD files (.dw2) to the industry-standard AutoCAD format (.dwg) . Because DW2 is a niche, proprietary format, the "best" solution is often determined by whether you need a quick one-time fix or a professional workflow. The Top Contender: TurboCAD / DesignCAD
Based on these criteria, here are the top contenders. dw2 to dwg converter best