Free and Open Source

Selected CCDC and CSD linked tools are available for free and/or as open source.

Ideal for teaching, data checking, and basic viewing of structures.

CSD-Community

This range of tools is supported by the CCDC, with regular updates and developments.

Covers data collection, validation, and visualisation as well as data sets just for teaching or academic research.

Learn more here.

Access Structures / WebCSD

Anybody can search and view crystal structures stored in the Cambridge Structural Database (CSD) using the WebCSD browser-based search and visualisation.

Learn more here.

Open Source

This range of cheminformatics software is public and community-supported.

While they may have originated from or use CCDC data, we do not actively maintain and support these.

We are happy for the scientific community to continue growing, advancing, and customising them.

• Access the scientific repositories in our CCDC Open Source GitHub here.
• DASH, the program for crystal structure solution from powder diffraction data, is now open source. More details here.

• Fragment Hotspot maps are free to use via our web app. This tool allows you to identify the location and quality of binding sites in a whole protein, with no prior knowledge.