OSMfocus can show details of nearby objects from the OpenStreetMap database such that they can be compared with real world observations. Correcting errors or adding missing information to OpenStreetMap and thus getting it 'into focus' is the main purpose of OSMfocus. OSMfocus is not a map, navigation tool or OpenStreetMap editor.

Discrepancies between the real-world and OpenStreetMap are best observed on-site while memorizing details for later comparison with OpenStreetMap is usually difficult and with a good likelihood of missing the actual differences.

OSMfocus shows key-value pairs as = and abbreviate two pairs that occur quite often, namely highway= and name= which are shown as :. Way objects which has just a single key-value pair of type 'building=*' are ignored when searching for nearby objects. To make better utilization of screen space, the following keys are not shown: 'kms:*', 'osak:*', 'created_by', 'addr:country', 'addr:postcode' and 'source'.

OSMfocus use location services and network access permissions…

OpenStreetMap is a map of the world, created by people like you and free to use under an open license.