Mapumental was a web-based application for displaying journeys in terms of how long they take,[1] rather than by distance, a technique also known as isochrone or geospatial mapping.

[2][3] It was developed by British organisation mySociety but was withdrawn in 2020.

[4] Users input one or more postcodes and Mapumental displays a map overlaid with coloured bands, each of which represent a set increment of time.

Initial work on the project was done by Chris Lightfoot, using open data from Railplanner, Transport Direct and the Transport for London Journey Planner.

[10][11][12][13][14] It is now provided as a commercial service by mySociety to clients such as the Fire Protection Association.