|JOSM is an extensible editor for OpenStreetMap (OSM) for Java 8.|
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.
Launch josm.jnlp (version
Download josm-tested.jar (version
Windows installer (version 11526)
Getting Started | Help
- The Introduction page will guide you during your first edit.
- The official help system / documentation (can be reached with
<F1>from within JOSM).
- Ask members of the OpenStreetMap community on
- Plugins add more complex program features. (installation instructions)
- Presets allow you to select predefined tags for objects. (installation instructions)
- Rules check and fix invalid data. (installation instructions)
- Styles change the appearance of the mapview. (installation instructions)
- Backgrounds allow you to trace osm data from e.g. aerial imageries. (installation instructions)
What has been changed recently?
- Startup notes (most important changes)
- Summarized changelog (nicely summarized)
- SVN changelog (very detailed)
Found a bug? | Have an idea? | Make a suggestion?
- Please report any bug found: Create a new ticket using the Report Bug entry in the main menu Help.
- Discuss ideas and suggestions also in the bug tracker, on the josm-dev mailing list, or on the #josm IRC channel.
- Use JOSM
- Report bugs, discuss ideas, think of possible enhancements (see above).
- Participate in bug tracking
- Review bugs, up/down vote tickets, find duplicates, test bugs, add more descriptive texts.
- Correct/update/extend the online help
- Unify all JOSM-related Wiki pages and join them with the online help.
- Translate program/documentation.
- Design fancy new icons.
- Write code – get the code and write patches …
- This site is a combined online help and bug tracking system for JOSM and JOSM plugins.
- No login is required to use this site (neither for reading nor for changes to wiki or bug tracker).
- A login has the following advantages:
- Mail is sent for changes in your own bug tracker tickets. This is possible by entering an e-mail as user name 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 which have no e-mail address or which have not been used at least once are automatically deleted.
- Logins 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.