JOSM – Java OpenStreetMap Editor

Getting Started

• Download some existing data from OSM using Download data on the File menu or the download button . If you have questions during your very first edit, the Introduction (en) page will assist you.

Getting Help

• Online help: Help on the Help menu or press F1 as required to get context sensitive help. Open Help (en) now.
• Join the ​forum or ask at ​help.openstreetmap.org

News

• JOSM now has its ​own song 😂
• 2024-04-14 weeklyOSM: The weekly round-up of OSM news, issue ​#716, is now available.
• 2024-04-10 (stable version 19039)
  • Fix #21533: Native Apple Silicon support (macOS installation files are "universal binaries")
• 2024-03-18 (stable version 19017)
  • OpenStreetMap is deprecating Basic Authentication and OAuth 1.0a. JOSM has removed OAuth 1.0a support in early 2024, and Basic Authentication should be avoided wherever possible. We recommend that all new users use OAuth 2.0 and existing users switch (en) to it. See #22810 and the OpenStreetMap Operations ticket ​#867 for further details.
  • JOSM will no longer finish startup with Java 8. Please upgrade to Java 11 or later.
  • Count any missing tag on any object as tag conflict (en) when merging nodes, combining ways and replacing geometry (#23305). See #23555 for further upcoming enhancements.
• 2024-02-06 (stable version 18969)
• 2024-01-17 (stable version 18940)
  • Use the appropriate Bing layer -- notably, there may be some quality differences, and the imagery may be newer or older than what would be seen on the previously used Bing imagery layer. There should no longer be a difference as compared to Bing imagery from ​Rapid or ​iD.
• More news ...
• Stable version: 19039 Development version: 19039
• Help translating JOSM into your language! Currently 60% of program texts are done.

---

Remember the golden rules of OpenStreetMap:

• Don't copy from other maps
• Have fun!