This plugin hasn’t been tested with the latest three major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

OS OpenSpace Maps


A plugin to display UK Ordnance Survey OpenSpace maps with markers and tracks.

Important Notice

Ordnance Survey has now withdrawn the OpenSpace service as of August 2021, having replaced it with their new OS Maps API on the OS Data Hub. The new service is much superior and there is a new OS DataHub Maps plugin available to use it. The new plugin uses the same shortcode and is compatible with the OpenSpace plugin, so you should not have to change your shortcodes. It contains several new features such as fullscreen view and elevation profiles.

If you want to display OS maps, install the OS DataHub Maps plugin instead and create a free account on the OS DataHub server. Do not install this plugin as you will not be able to activate an OS OpenSpace account and existing OpenSpace accounts will stop working soon (if they haven’t already).

Full instructions for using the OS DataHub Maps plugin and getting an account are available on the plugin homepage


This plugin works using the [osmap] shortcode anywhere in your post, page or custom post type content. It allows maps with markers or GPX/KML files to be shown.

The following attributes can be passed:

  • height="600" sets the height of the map div
  • width="800" sets the width of the map div. Leave blank to use available width.
  • scale="5" sets the initial zoom level
  • color="red" or color="#ff0000" (colour is also acceptable) sets the colour of the track shown from a file.
  • track="3" sets the width of the track shown from a file.
  • gpx="" specifies a gpx file to be displayed
  • kml="" specifies a kml file to be displayed
  • markers="NY1234512345;Marker 1|54.454198,-3.211527;Marker 2" a list of positions and (optionally) labels separated by | with a ; between the position and label. Positions can be 6, 8 or 10 figure grid references or decimal lat long. Labels, if present, must be simple text.
  • markerfile="" specifies a text file containing marker definitions, one per line. As above, position and label are separated by ;. In this case the label can include any text including HTML, should you wish to include links or other formatting.
  • centre="54.454198,-3.211527" sets the map centre point, to override the default centre or if not using markers or track files

Scale uses the OS scale values which are essentially multipliers on 1:10000 scale, so 5 represents 1:50000 and 100 represents 1:1M. The available scale values are 1, 2, 2.5, 4, 5, 10, 20, 50, 100, 200, 500, 1000, 2500. These are also listed on the help tab when you are editing a post or page.

To upload a KML or GPX file just use the WordPress media uploader and then copy the address of the uploaded file into the shortcode.


  • [osmap height="300" width="300" color="blue" gpx=""] displays a 300px by 300px window containing a blue track from the file specified.

  • [osmap markers="NY2000008000;Wasdale"]shows a default size and zoom window with a marker placed and the popup text “Wasdale”


  • A map embedded in a WordPress post
  • The settings page


  1. Go to the Plugins page in the admin area, search for openspace navigate to the plugin page and click install.
  2. Or download and extract into the /wp-content/plugins/ directory. This will create a subfolder called os-openspace-maps containing the plugin files.
  3. Activate OS OpenSpace Maps through the ‘Plugins’ menu in WordPress
  4. Before the plugin will work you need to add your API key to the settings page on the dashboard.
  5. If you are running WordPress Multisite you (or your network administrator) will have to add KML and GPX files to the allowed file types under ‘Network Settings’ if you wish to upload these files.


Where can I get support?

You can find more information on the plugin homepage

Ask questions in the support forum on the WordPress plugin page


21 March 2018
Hi, Other plugins with similar functionality have height profiles - could you add that to the plugin please, then it would be really great. Thanks H Freeman
3 September 2016
Initially I tried this and couldn't get the maps to display at all. After picking up a few clues on the OS Openmaps forums, I made a couple of simple tweaks to the code in the plugins folder and fixed it. Apparently, if your wordpress site is https - something that's becoming more popular - then you'll probably need to make these tweaks. I have written the instructions in the Support section.
Read all 4 reviews

Contributors and Developers

“OS OpenSpace Maps” is open source software. The following people have contributed to this plugin.


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Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Change Log


  • Delete options on uninstall
  • Add warning about service withdrawal and link to new plugin


  • Fix a warning with PHP 7.3


  • Fix a warning with PHP 7.2


  • Fix order of initialisation which was causing a crash on update


  • Admin option to disable mousewheel zoom
  • Admin option to add GPX file download link
  • Option for GPX track width
  • Improved selection of map scale in shortcode attributes
  • Can define multiple markers in a text file
  • Can create map with neither markers nor GPX track
  • Works with http:// and https:// sites
  • Security problems addressed and settings validated
  • Fix incorrect map centring when using only lat/long coordinates
  • Improved help text


  • CSS fix for stripy map tiles after the OS changed OpenSpace


  • Fixed problem with WordPress versions earlier than 3.3
  • Added hooks and filters to allow plugins to modify output
  • Added proxy for GPX and KML files not on the wordpress host


  • Bug Fix


  • Multiple markers with auto zoom
  • API key checking
  • New help tabs added to options and post editing screens
  • Add multiple maps to post or pages
  • Able to use lat long for markers


  • Bug Fix


  • Only adds one row to the options table
  • Fixed feed bug


  • Initial Release