Errors in the Map Data
- Quality assurance – Exhaustive list of tools for improving map data quality. Includes tools which show potential mapping bugs.
- Notes – Easily add error reports on the OpenStreetMap main website.
Maintainers of OSM-related software generally have an issue tracker at the same place as their development repository. In most cases, this is github. Please check the wiki page for the individual project to find out where the maintainer wants bugs reported.