Hollie Lubbock discusses open data and its uses in cultural institutions. She notes that open data, which is freely available and reusable, has been used by the NHS to find £200m in possible drug cost savings. Cultural institutions are also developing shared thesauri and APIs to make their collections data more open and linkable. The future may require open data for government funding. When museums share data using common standards, it enables new tools for cross-collection searching and collaboration across institutions.