JOSM – Java OpenStreetMap Editor

Stable version: 19481 Development version: 19481

JOSM needs help with translations and the online help. Please help in the JOSM I18n contest.

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 see the OSM Wiki page ​Contact channels for more ways to contact the OpenStreetMap community

News

• 2026-02-01 weeklyOSM: The weekly round-up of OSM news, issue ​#810, is now available.
• 2026-02-01 (stable version 19481)
  • Added languages Laotian, Nynorks and Latvian.
  • The Debian repository and newer Ubuntu repositores have a new signing key.
• More news ...

Contributing to JOSM

• Help translating JOSM into your language! Currently 99% of program texts are done.

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Remember the golden rules of OpenStreetMap:

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