Java OpenStreetMap Editor

JOSM is an editor for ​OpenStreetMap (OSM) written in ​Java 1.5. Currently it supports loading stand alone GPX tracks and GPX track data from the OSM database as well as loading and editing existing nodes, ways, metadata tags and relations from the OSM database.

Download and Development

• Note that there are fairly regular updates, so always try running one of the two latest versions (and also latest plugins). <!-- DON'T CHANGE THAT URL! The tested version link is based on this text! -->
• Download the ​latest more or less stable JOSM (1344) version (also as ​fixed link)
• Download the ​latest JOSM version (may have more errors, be careful with this one)
• View the ​change log. Major changes are noted in the JOSM startup notes.
• Help translating JOSM into your language using ​Launchpad.
• Get the source from svn co http://josm.openstreetmap.de/svn/trunk

Help and Support

• Help (Translations: Deutsch, Français)
• Tutorial videos are available at any mirror. You may need ​TSCC codecs for some AVI files.
• For install troubles, look at the InstallNotes page and/or ​http://wiki.openstreetmap.org/index.php/JOSM
• Report bugs via trac. When reporting a bug please include the version (version number can be found in menu Help -> About).

• Get many plugins (Easier installation via JOSM preferences).
• Problems with plugins? Have a look at the ​JOSM download directory.

• Requests for new features can also be made via trac or via the JOSM developer mailing list (josm-dev@…). You can ​subscribe here.

How to help

• Programmers: Help developing code (e.g. write patches for entries in bug tracker)
• Update and translate the online help
• Unify and translate all JOSM related Wiki pages and join them with the online help
• ​Translate JOSM into other languages
• Review translations
• Review original texts (program, online help, ...)
• Review bugs in bug tracker: find duplicates, test bugs and add more descriptive texts
• ...