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Open Babel: The Open Source Chemistry Toolbox

Open Babel is a chemical toolbox designed to speak the many languages of chemical data. It's an open, collaborative project allowing anyone to search, convert, analyze, or store data from molecular modeling, chemistry, solid-state materials, biochemistry, or related areas.

Ready-to-use programs, and complete programmer's toolkit Read, write and convert over 110 chemical file formats Filter and search molecular files using SMARTS and other methods Supports molecular modeling, cheminformatics, bioinformatics Organic chemistry, inorganic chemistry, solid-state materials, nuclear chemistry Downloaded over 325,000 times and used by over 40 related projects More about Open Babel Open Babel on SourceForge To support Open Babel, please cite J. Cheminf. 2011, 3:33

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Navigation Get Open Babel (downloads, installation, release notes) Need Help? (getting support, reporting bugs, making suggestions...) Capabilities (features, file formats, related projects, academic papers...) Using Open Babel Programs (manuals, tutorials, support lists...) Develop with Open Babel (how does it work, examples, developer documentation...) Get Involved (tell others, report bugs, suggest features, citing Open Babel...)

News 2016-09-21 Open Babel 2.4.0 Released 2012-10-11 Open Babel 2.3.2 Released 2011-10-17 Open Babel 2.3.1 Released 2011-10-07 Open Babel Paper Published 2011-03-24 Pre-registration open for 2nd Open Babble 2010-10-26 Open Babel 2.3.0 Released 2010-07-06 Silicos NV contributes Spectrophore code 2009-07-31 Open Babel 2.2.3 Released 2009-07-10 Open Babel 2.2.2 Released 2009-02-03 Open Babel 2.2.1 Released 2008-07-04 Open Babel 2.2.0 Released 2008-03-20 Paper on Pybel published 2008-02-26 New OpenBabel.org Website 2007-07-07 Open Babel 2.1.1 Released 2007-04-07 Open Babel 2.1.0 Released News Archive »