ChemAxon’s Calculator Plugins provide solutions to a wide range of problems at all levels of chemical modeling. Implemented calculations and property predictions can efficiently calculate physico-chemical properties and molecular descriptors even for large compound libraries.
Calculator Plugins has many attractive features like trainable physico-chemical property prediction, a wide selection of life-science-related chemical descriptors, modeling in 2D and 3D, and many others. All these features come with nice GUIs, making them powerful cheminformatics tools.
To get started as a user with the Calculator Plugins, look at the User's Guide. However, if you want to develop your own plugin, have a look at our Developer's Guide pages. You can also find the scientific models behind the plugins here.