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 postsOpenStreetMap & Geography's Five Themes
Join us for a Mappy Hour on Wednesday, May 21st from 8-9 pm ET. Hear from Bill Wetherholt, Professor at Frostburg State University, about how OpenStreetMap can be used in the classroom...
OpenStreetMap US Tech Updates
Learn what’s new with MapRoulette, OSMCha, OSM Sandbox, Public Domain Map, OpenTrailMap, and other OSM US tech projects.
OpenStreetMap US Wrapped: A Year in Review for 2024
2024 was a year of exciting growth for both OpenStreetMap and the OpenStreetMap US team. Let’s celebrate some of the highlights! The Team Grew OSM US welcomed Jake Low, Software Engineer, and...
Join OSM US in Welcoming Jake Low to the Team!
Please join us in welcoming Jake Low to the OpenStreetMap US team! Jake is a software developer and will be working primarily on MapRoulette and OSMCha, both of which are OpenStreetMap US...
