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 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 now.
• Join the ​forum or ask at ​help.openstreetmap.org

News

• Upcoming changes
  • JOSM software (Java archive, Windows and MacOS release) will no longer be signed. The code signing rules changed and are no longer acceptable for JOSM team. When using systems relying on signing in future warning requests will appear again.
  • OpenStreetMap is deprecating Basic Authentication and OAuth 1.0a. JOSM will be removing OAuth 1.0a support in early 2024, and may hide or remove Basic Authentication support at the same time. We recommend that all new users use OAuth 2.0 and existing users switch to it. See #22810 and the OpenStreetMap Operations ticket ​#867 for further details.
• 2023-11-26 weeklyOSM: The weekly round-up of OSM news, issue ​#696, is now available.
• 2023-08-30 (stable version 18822)
  • Fix #23105: Add action to select shared/common child objects (patch by Woazboat, modified)
• 2023-08-01 (stable version 18789)
• More news ...

• Stable version: 18822 Development version: 18904

• Help translating JOSM into your language! Currently 81% of program texts are done.

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Remember the golden rules of OpenStreetMap:

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