Open Babel is computer software, a chemical expert system mainly used to interconvert chemical file formats. About Due to the strong relationship to informatics this program belongs more to the category cheminformatics than to molecular modelling. It is available for Windows, Unix, Linux, macOS, and Android. It is free and open-source software released under a GNU General Public License (GPL) 2.0. The project's stated goal is: "Open Babel is a community-driven scientific project assisting both users and developers as a cross-platform program and library designed to support molecular modeling, chemistry, and many related areas, including interconversion of file formats and data." History Open Babel and JOELib were derived from the OELib cheminformatics library. In turn, OELib was based on ideas in the original chemistry program Babel and an unreleased object-oriented programming library called OBabel. Major features chemical expert system interconversion of many chemical file formats substructure search, based on simplified molecular-input line-entry system (SMILES) fingerprint calculation 3D coordinate generation wrappers for Python, Perl, Java, Ruby, C# See also Avogadro – molecular builder and editor based on Open Babel Ghemical – molecular mechanics program based on Open Babel JOELib – Java version of Open Babel and OELib XDrawChem – 2D drawing program based on Open Babel Comparison of software for molecular mechanics modeling Blue Obelisk List of free and open-source software packages References External links E-BABEL – interactive version of the Open Babel at Virtual Computational Chemistry Laboratory chemCast Episode 003 – project lead developer Geoff Hutchison was interviewed on the podcast Design flaws in OELib Computational chemistry software Free chemistry software Free software programmed in C++ Chemistry software for Linux Software that uses wxWidgets File conversion software 2005 software