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 postsCharter Projects Face Uncertain Future as Financial Support Ends
Many of the best OpenStreetMap tools emerge organically as personal projects built by members of the global community. Informal structures can be great for getting a project off the ground, but at...
Inside OSMCha’s New Upgrade
OSMCha, the OpenStreetMap changeset review and validation tool, got quite a bit faster recently. If you’ve used OSMCha over the past year or so, you may have noticed that it often took...
OpenStreetMap & 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.
