The ultimate OpenStreetMap validator
What are people mapping? OSMCha is an advanced (yet easy-to-use) tool to analyze bundles of OpenStreetMap edits, called changesets. Advanced filters, vandalism detection, and on-map visualization help you find and verify the changesets you care about.
Meet the team
News and talks
See all postsOSMCha has a new home at OpenStreetMap US
At the beginning of 2023 we announced OSMCha as a charter project of OpenStreetMap US. After almost 10 years of being generously hosted by Mapbox, OSMCha moved to a new home at...
The state of OSMCha
OSMCha is one of the main validation tools for OSM. It was created as an open-source software project in the spare time of a single developer. Then Mapbox supported its development and...
OSMCha Overview
Mappy Hour is back! Join us this month to hear from Wille Marcel about OSMCha: a validation tool for OpenStreetMap.
Welcoming OSMCha as an OSM US Charter Project
OpenStreetMap US is excited to announce our latest Charter Project - OSMCha! OSMCha is an open-source software project started in 2015 focusing on reporting, inspecting, and validating changes to OpenStreetMap. Its mission...
A highway to OSMCha
OSMCha is the main OpenStreetMap validation tool. It’s used both by corporate and community mappers. After many years being maintained exclusively by Mapbox, OSMCha is now entering a new phase. As Development...
