JOSM logo

JOSM is an extensible editor for OpenStreetMap (OSM) for Java 11+.

It supports loading GPX tracks, background imagery, and OSM data from local sources as well as from online sources and allows to edit the OSM data (nodes, ways, and relations) and their metadata tags.

JOSM is open source and licensed under GPL.

open Start josm.jnlp (newest tested version, currently 18969)

Preferred distribution channel, all platforms, monthly automatic update (how to start; changelog)

download Download josm-tested.jar (version 18969)

All platforms (how to run; changelog)

Windows MSI installer, Windows EXE installer (version 18969), or from Microsoft Store (see how to install)

macOS app (version 18969), or use homebrew (see how)

Development version of josm-latest.jnlp or josm-latest.jar (version 18996), macOS dev builds, Ubuntu repository and all Download options.

Getting Started


Recent changes

Found a bug? | Have an idea? | Make a suggestion? | Like to contribute?

  • Report any bug found! Via the Report Bug form in the Help menu it is easy.
  • Create and discuss ideas and enhancements as ticket and contact the team.
  • Contribute with updates, corrections and translations to unify all JOSM-related pages and join them with the online help.
  • Participate in bug tracking with reviewing bugs, up/down vote tickets, find duplicates, test bugs, add more descriptive texts.
  • Design fancy new icons.
  • Develop OSM by getting the source. See the developers guide for build instructions and other details.

This site

  • This site is a combined help and bug tracking system for JOSM and JOSM plugins.
  • No login is required to use this site (neither for reading nor for editing the wiki or the bug tracker).
  • But logging in has advantages:
    • Mail is sent for changes in your bug tracker tickets. This is possible by entering an e-mail as a username in the tickets too, but then be aware that the address is openly visible and you are unable to change that later.
    • Page settings are remembered (e.g. input field size and a lot of other stuff).
  • Logins that have no e-mail address or which have not been used at least once are automatically deleted.
  • Accounts to edit the OpenStreetMap database are separate from the logins on this server.
  • Copyright (CC-BY-SA and LGPL since April 2014) of this site is stated in the footer.



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Last modified 3 weeks ago Last modified on 2024-02-02T22:26:47+01:00
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