Avogadro Free download Powerful open-source 3D molecular editor for visualizing, modeling, and analyzing complex chemical structures Free download Powerful open-source 3D molecular editor for visualizing, modeling, and analyzing complex chemical structures Vote (1 votes) Program license Free Developer Avogadro Chemistry Version 1.100.0 Works under Mac Also available for Windows Vote (1 votes) Developer Avogadro Chemistry Works under Mac Mac OS X Program license Free Version 1.100.0 Also available for Windows