* 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 700,000 times and used by over 40 related projects
* How to cite Open Babel: The Open Babel and Pybel papers