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

• Note that there are fairly regular updates, so always try running a recent version (and also recent plugins).
• Access ​JOSM-WebStart without installation
• Download the ​tested JOSM version 19253
• Download the ​Windows JOSM installer version 19253
• Download the ​Mac OS X JOSM package version 19253
• Prepare a USB_Stick to use JOSM on any foreign Windows machine.
• For download scripts use version check for ​latest and ​tested (or ​both) to reduce download bandwith
• View the ​change log. Major changes are noted in the JOSM startup notes.

Extensions

• Get many plugins, presets or styles (Easier installation via JOSM preferences).
• URLs of usable WMS services can be viewed and added at Maps page.
• 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.
• Follow ​the unofficial JOSM feed on Twitter

Development

• Download the ​latest JOSM version 19259 (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 http://josm.openstreetmap.de/svn/trunk
  • From the unofficial ​GitHub mirror: git clone git://github.com/openstreetmap/josm.git
• See Developers Guide or Translations Guide
• The Ubuntu JOSM project on ​launchpad

Help and Support

• Start of Help pages of the software (reached with <F1> from within JOSM)
• Tutorial videos are available at any mirror. You may need ​TSCC codecs for some AVI files.
• Further help is available when using ​various OSM mailinglists. It's best to ask questions ​on the newbies list or the language specific talk lists.

Problems

• 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).
• Understand JOSM release system

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
• ...