| Software | Best For | Platform | Key Feature | |---|---|---|---| | | Open-source 3D parametric modeling | Windows, Mac, Linux | Parameter-driven design with large community support | | Fusion 360 (Personal) | Hobbyists and small-scale projects | Windows, Mac | Professional tools free for non-commercial use | | Tinkercad | Beginners and students | Browser-based | Extremely easy to use, no installation required | | LibreCAD | Simple 2D drafting | Windows, Mac, Linux | Lightweight open-source 2D CAD | | SketchUp Free | Interior and architectural concepts | Browser-based | User-friendly web-based modeling | | OpenSCAD | Code-based 3D model creation | Windows, Mac, Linux | Ideal for programmers and script-based design |

For users who are concerned about hidden malware that antivirus scans might miss, the safest option is to completely reinstall your operating system. This will remove any hidden threats. Before doing this, back up your important files, but exercise caution as backup files may also contain infected data.