- BigTinCan Mapper - BlackBerry and Android app to allow POIs to be added to OSM on the move. Includes overview and download.
- Java OpenStreetMap Editor (JOSM) - An cross-platform editor for OpenStreetMap written in Java. Site includes download, documentation, and development information.
- Keep Right - Data consistency checks for OpenStreetMap. Provides a scrollable zoomable map, with potential errors marked for further investigation.
- NOVAM Viewer - Tool to help mappers check and merge imported public transport stop data from NaPTAN.
- OpenStreetBugs - Scrollable map with the ability for users to file a "bug" indicating an error in the mapping data at a particular location.
- OpenStreetMap Watch List (OWL) - A service for identifying recent changes to a specific area. Provides a visual map and RSS feed output.
- OSM Amenity Editor - Online interface to allow editing and addition of points of interest on the map.
- OSM Error - Tool for OpenStreetMap contributors to export a GPX file of errors and missing attributes to take in to the field to help collect new information.
- OSM Inspector - Flag up a range of potential problems and errors on an interactive map.
- OSM Relation Analyzer - Tool to allow mappers to inspect a relation describing a route, to see whether or not it is continuous and closed.
- OSM Restriction Analyser - Tool to help visualise an check turn-based restrictions on highways in OpenStreetMap data.
- OSM Taginfo - A system for finding and aggregating information about OpenStreetMap tags. Provides sorted lists of common values found for each tag, with links to data downloads and tag documentation.
- Potlatch - An online flash-based OpenStreetMap editing client. Site provides documentation, tutorials, FAQs, and development information.
- Vespucci - An OpenStreetMap editor for Android. Includes screenshots, code download, and project information.
- Walking Papers - Site provides printable maps of local areas designed to help OpenStreetMap contributors record further details in the field. Scans can then be uploaded and used when editing the map.
