Free open-source molecular editor and visualization package
To manually install IQmol with Homebrew, use the following command:
Current version of IQmol.app: 3.1.5
ARM: http://iqmol.org/downloads/IQmol-3.1.5.dmg
Intel: http://iqmol.org/downloads/IQmol-3.1.5.dmg
Website: http://iqmol.org/