Jmol is computer software for molecular modelling chemical structures in 3-dimensions.[3] Jmol returns a 3D representation of a molecule that may be used as a teaching tool,[4] or for research e.g., in chemistry and biochemistry. It is written in the programming language Java, so it can run on the operating systems Windows, macOS, Linux, and Unix, if Java is installed. It is free and open-source software released under a GNU Lesser General Public License (LGPL) version 2.0. A standalone application and a software development kit (SDK) exist that can be integrated into other Java applications, such as Bioclipse and Taverna.

Developer(s)Jmol development team
Initial release2001 (2001)
Stable release
14.31.34[1]  / 7 March 2021 (7 March 2021)
Written inJava
Operating systemCross-platform
PlatformSystems with Java and Web browsers without Java
Available in16 languages
List of languages
Catalan, Chinese, Czech, Danish, Dutch, English, French, German, Hungarian, Indonesian, Italian, Korean, Portuguese, Spanish, Turkish, Ukrainian[2]
TypeMolecular modelling
LicenseLGPL 2.0

A popular feature is an applet that can be integrated into web pages to display molecules in a variety of ways. For example, molecules can be displayed as ball-and-stick models, space-filling models, ribbon diagrams, etc.[5] Jmol supports a wide range of chemical file formats, including Protein Data Bank (pdb), Crystallographic Information File (cif), MDL Molfile (mol), and Chemical Markup Language (CML). There is also a JavaScript-only (HTML5) version, JSmol, that can be used on computers with no Java.[6]

The Jmol applet, among other abilities, offers an alternative to the Chime plug-in,[4] which is no longer under active development. While Jmol has many features that Chime lacks, it does not claim to reproduce all Chime functions, most notably, the 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 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.


See also


  2. Jmol translations
  3. Chen, Jim X. (2008), Springer (ed.), Guide to Graphics Software Tools, p. 471, ISBN 978-1-84800-900-4
  4. Herráez, A (2006), "Biomolecules in the Computer: Jmol to the Rescue", Biochemistry and Molecular Biology Education, 34 (4): 255–61, doi:10.1002/bmb.2006.494034042644, PMID 21638687, S2CID 36319720
  5. Herráez, A (2007), Lulu (ed.), How to Use Jmol to Study and Present Molecular Structures, Volume 1, p. 21, ISBN 978-1-84799-259-8
  6. "JSmol". Archived from the original on 2018-01-01. Retrieved 2015-11-02.
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