Jmol is an open-source Java tool for molecular modelling chemical structures in 3D. Jmol returns a 3D representation of a molecule that may be used as a teaching tool, or for research e.g. in chemistry and biochemistry. It is free and open source software, written in Java and so it runs on Windows, Mac OS X, Linux and Unix systems. There is a standalone application and a development tool kit that can be integrated into other Java applications, such as Bioclipse and Taverna.
The Jmol applet, among other capabilities, offers an alternative to the Chime plugin, which is no longer under active development. While Jmol has many features that are not available in Chime, it does not claim to reproduce all Chime functionality (most notably, Chime's Sculpt mode). Chime requires plug-in installation and Internet Explorer 6.0 or Firefox 2.0 on Microsoft Windows, or Netscape Communicator 4.8 on the Mac OS 9. Jmol requires Java installation and operates on a wide variety of platforms. For example, Jmol is fully functional in Mozilla Firefox, Internet Explorer, Opera, Google Chrome and Safari.