From Parliamentary constituencies to council wards, Boundary-Line™ maps every administrative boundary in detail for you. And what's more, it's completely free to download and use.
OS Downloads API
Save valuable time by automating the discovery and download of detailed OS data.
OS Open Zoomstack
OS Open Zoomstack makes OS open data more accessible, customisable and easier to use. It provides a single, customisable map of Great Britain to be used at national and local levels.
OS Open Linked Identifiers
OS Open Linked Identifiers provides authoritative relationship between UPRNs, USRNs, TOIDs and meta data to enable reliable matching; for greater data connectivity.
OS Maps API
Accurate, up-to-date maps that offer the most convenient way to add detailed OS data to your application.
OS Terrain 50
A free to use topology GIS dataset, to help you visualise simple landscapes in 3D and bring your geographic analysis to life.
Get started with geographical analysis, simple route planning and asset management.
OS VectorMap District
How would you like your map to look?
OS Open Rivers
Understand how water bodies and watercourses in Great Britain join up.