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OS OpenData

Get started with free digital map data

We offer 12 quality assured, regularly updated products that enable you to analyse your data, build interactive websites and create stunning visuals – and they're all free. All we ask is an acknowledgement.

OS OpenData can be combined with other open datasets available from a variety of sources. Many organisations and individuals have already done just that to create a diverse range of innovative applications – could yours be next?

What's available

From a map of Britain, OS OpenData products take you right down to street level. They encompass backdrop maps, boundaries, postcodes and more.

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OS OpenData Licence

As long as you credit OS OpenData, you're free to use these products in any way you wish, provided that it's not against the law.

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Support forum

As you start your OS OpenData journey, there's an active community of knowledgeable people ready to offer useful advice.

Ask a question

View maps

Look at maps of Great Britain using OS OpenData products; you can zoom right in to street level and see electoral boundaries.

Open viewer

Getting started

To use your OS OpenData files, you'll need to get software to use it. There's a wide range to choose from, including free open-source options.

Go!

Linked data

As part of the Web of Data, we have published APIs to three of our datasets. So, to look up a postcode or similar, just write code to query our database.

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Been here before?

If you already know what you want, get your free data today as either a download or DVD.

Order now

OS OpenSpace

Using the OS OpenSpace API, you can embed and annotate our maps for free on your non-commercial website or mobile app.

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Support centre

Get support for the full range of OS OpenData products: useful downloads: FAQs, user guides,downloads – it's all here.

Get help

Trying other products

Use our commercial products to develop, test and demonstrate your applications for free; the terms of our Innovation Licences apply.

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