The Open Chemistry project is a collection of open source, cross platform libraries and applications for the exploration, analysis and generation of chemical data. The project builds upon various efforts by collaborators and innovators in open chemistry such as the Blue Obelisk, Quixote and the associated projects. We aim to improve the state of the art, and facilitate the open exchange of ideas and exchange of chemical data leveraging the best technologies ranging from quantum chemistry codes, molecular dynamics, informatics and visualization.