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JSmol is a JavaScript framework that allows web developers to create pages that utilize either Java or HTML5 (no Java), at will. This enables Jmol to display interactive 3D molecular structures on devices that do not have Java installed, or for which Java is not available (such as smart phones and some tablet computers, e.g. iPad) or has not been installed because of concerns for Java being a security threat.

JSmol/HTML5 (no Java) is virtually identical to JSmol/Java in terms of rendering. The Java mode gives faster performance and smoother rotation than the HTML5 mode by a factor of 6 to 10, typically. In many cases this is not noticeable. Where it is noticed is with rending structures involving 20,000+ atoms or with surface creation. Rendering in the HTML5 mode can be sped up substantially with judicial use of PlatformSpeed.

More information about JSmol:

  • Jmol JavaScript Object: A full discussion of what JSmol is and how it can be implemented on a web page. Technical information about the libraries used to implement both the Java and HTML5 modes and to interact with them via scripts and user interface controls such as buttons, links, and menus.
Maybe you want to go straight to
  • JSmol pros and cons describes the problems JSmol has with large models and certain web browsers.

Installing Jmol / JSmol
Running Jmol / JSmol
Jmol / JSmol Tutorials
Jmol + JSmol Documentation