Free CSD Products
The CCDC offers a selection of products and services free of charge for the benefit of the scientific community.
The services detailed below cover a wide range of crystallographic tools — from data collection, validation and visualisation to teaching, research and analysis.
Blog: What’s the difference between free Mercury and full licence Mercury?
Free CSD Products and Services
Crystal Structure Visualisation and Exploration Made Easy. Advanced features in Mercury are available with a CSD-Core in the full Mercury software.
The most complete collation of observed molecular and crystallographic symmetry properties to date.
A command-line tool for performing crystal structure reduced cell checks against the CSD.
View, retrieve, edit and update your deposited data and share your structures with co-workers pre-publication.
Open source products are public and community-supported.
While they may have originated from or use CCDC data, we do not actively maintain or support these products.
CSD GitHub Repository
Find a range of scripts for use with the CSD data and software, to support automated, repeatable analyses using the CSD-Python API. You can download and use, or modify the scripts here, and share your scripts with the community!
DASH is a versatile and interactive package for solving crystal structures from powder diffraction data.
In 2021 it was made open source and is now maintained by the community, allowing new features to develop.
Given a whole protein and no prior knowledge, the Fragment Hotspots application identifies the location and quality of binding sites in minutes.
Not only do high scoring regions coincide with ligand binding site, but the very highest scoring regions specifically highlight fragment binding sites.