Are you working with or artistic logos ? Do you prefer desktop software or a quick web tool ?
If you need a strictly 2D CAD experience that feels like classic AutoCAD, LibreCAD is the answer. It is entirely free and lightweight. It is frequently used alongside external tracing tools to refine architectural layouts or mechanical parts after the initial raster-to-vector conversion. Best Browser-Based Tools
Remove "noise" or speckles in a photo editor before converting.
💡 To get results that rival Scan2CAD, ensure your chosen tool offers:
Inkscape is the gold standard for free vector graphics. While it is primarily a design tool, its "Trace Bitmap" feature is incredibly robust. It uses the Potrace engine to turn high-resolution scans into clean paths. It is best for artistic designs and logos that need to be exported as DXF files for laser cutting or basic CAD work.
QCAD is an open-source 2D CAD application that is often more intuitive for technical users than general drawing software. The community edition is free and provides a solid environment for cleaning up converted files. While it doesn't always "auto-trace" as aggressively as others, it is the best place to manually digitize a scan with high precision.