Version 150 (modified by stoecker, 10 years ago) (diff)

Maps page link

Java OpenStreetMap Editor


JOSM is an editor for OpenStreetMap (OSM) written in Java 1.6. 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 the latest JOSM version 17542 (may have more errors than "tested", be careful with this one).
  • Try JOSM applet (very new, may be defective - please report bugs, currently you need to be logged in before or loading and saving preferences wont work)
  • Get the source:
    • From the official Subversion repository (recommended): svn co
    • From the unofficial GitHub mirror: git clone git://
  • See DevelopersGuide
  • The linux package JOSM project launchpad

Help and Support


How to help

  • Help developing code (e.g. write patches for entries in bug tracker)
  • Review bugs in bug tracker: find duplicates, test bugs and add more descriptive texts
  • Translate JOSM into your language using Launchpad.
  • Translate StartupPage or VersionHistory into other languages
  • Update and translate the online help
  • Unify and translate all JOSM related Wiki pages and join them with the online help
  • Review translations
  • Review original texts (program, online help, ...)
  • Create fancy new icons for presets or tools without icons
  • ...