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OS OpenSpace API

The OS OpenSpace® application programming interface (API) enables you to embed and use our maps in business and non-business website or mobile applications.

Why choose OS OpenSpace API

  • Increase visitor engagement with your website or app.
  • Enhance your brand by association with ours.
  • Offer richly-detailed maps data of Great Britain, continuously updated .
  • Place name and postcode search tools included.
  • Design your map window using our Web-Map Builder code generation wizard.
  • Includes comprehensive support resources and documentation for Web developers.Free access.
  • Subject to fair-use limits, it's free and you may display ads on the page.

Compare the level of detail of OS OpenSpace in rural areas;

Ordnance Survey map of Cheddar

This is what you get from another free map provider:

Google map of Cheddar

On our maps, there is no 'white space' between main roads. This makes OS OpenSpace ideal for outdoor pursuits websites and apps.

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Existing users: manage your account

We also license OS OpenSpace Pro, a premium version that offers extra features suitable for corporate use.


Create a map and add your own information in just a few clicks with Web-map builder. Simply copy the HTML code that it generates and paste it into your intended web page for an instant, customised, free web map.

The OpenSpace Mobile SDK provides a complete toolset for building iOS mapping applications using Ordnance Survey maps. Start developing now.

OS OpenSpace community forum

Post questions and help others to make the most out of the OS OpenSpace web map platform.

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© Ordnance Survey 2019