Rasmol is described as 'RasMol is a computer program written for molecular graphics visualization intended and used primarily for the depiction and exploration of biological macromolecule structures, such as those found in the Protein Data Bank' and is an app in the Education & Reference category. There are more than 10 alternatives to Rasmol for a variety of platforms, including Mac, Windows, Linux, Android and Wine. The best alternative is Avogadro, which is both free and Open Source. Other great apps like Rasmol are UCSF Chimera (Free), Jmol (Free, Open Source), VMD - Visual Molecular Dynamics (Free, Open Source) and UGENE (Free, Open Source).
Jmol is a free, open source molecule viewer for students, educators, and researchers in chemistry and biochemistry. It is cross-platform, running on Windows, Mac OS X, and Linux/Unix systems. The JmolApplet is a web browser applet that can be integrated into web pages.
QuteMol is an open source (GPL), interactive, high quality molecular visualization system. QuteMol exploits the current GPU capabilites through OpenGL shaders to offers an array of innovative visual effects.
RasTop is a molecular visualization software adapted from the program RasMol, which was initially developed by Roger Sayle. RasTop is particularly adapted for educational purposes and for the rapid analysis of macromolecules at the bench.