Java OpenStreetMap Editor

JOSM is an editor for ​OpenStreetMap written in Java 1.5. The current version supports stand alone GPX tracks, GPX track data from the OSM database and existing nodes, line segments and metadata tags from the OSM database.

News

News is announced ​here.

Changeover to API 0.4 on Saturday 05 May 2007 - JOSM seems to work, but there is a bug where, when you download overlapping data in multiple steps, JOSM thinks that there is a lot of changes to upload. This is being worked on.

To run JOSM with the new API, use the JOSM preferences editor or any external editor on josm/preferences and add

osm-server.version=0.4

(That setting defaults to 0.3 in the current JOSM version and thus will likely not be present in your preferences.)

About

• ​Download the latest JOSM version, and view the change log.
• If you are using lots of plugins and having troubles getting them to run, try ​this version.
• Tutorial videos are available at any mirror. You may need ​TSCC codecs for some AVI files.
• Get many plugins
• For install troubles, look at the InstallNotes page.
• For an very unfinished online help, press F1 within JOSM or click here
• Bugs are handled via trac.
• Get the source from svn co http://josm.openstreetmap.de/svn
• View keyboard Shortcuts