Find out how to get started using OS OpenData - our free to use geospatial data. You'll need GIS mapping software to get the most from it.
Getting started guide (PDF)
View examples of our products including OS Open Zoomstack and OS Open Greenspace. Our getting started guide tells you how to use our free GIS mapping data.
More free map data
We also offer a wide range of commercial products which you can develop, test and include in your applications. These are available via manual and automated downloads or data APIs that integrate with user software.