. Autodesk has consolidated its 123D apps into other products. Official Replacement : Users are encouraged to transition to Fusion 360 , which offers more professional features, or for a simpler entry-level experience. Compatibility
You may still find .dmg (installer) files on third-party hosting sites like Softonic or FileHorse, but these are unsupported and may contain security risks or performance bugs . 2. Compatibility Hurdles on Modern Macs Autodesk 123d Design Download Mac
Safe ways to get similar functionality
: The software was designed for older Intel-based Macs. It does not run natively on Apple Silicon (M1/M2/M3 chips) and often displays graphical glitches or fails to boot entirely. which offers more professional features