Welcome to the JOSM online help system

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Getting Started

Within this help/wiki

• Introduction to JOSM
• How Tos about JOSM
• Audio mapping: playing voice notes and synchronizing them with your GPS tracks in JOSM

OSM-wiki resources

• ​JOSM page and ​JOSM Guide
• ​Where to get help? - more general articles and resources (including ​Map features)

Concepts

• Objects - explains what objects maps consist of and how these objects are described in detail
• Conflict - explains the basics of conflicts, why they occur, how they are detected and how you can resolve them
• Changeset - explains why you create a changeset when you upload data to the OSM server
• Preferences - some of the setting are not acceptable via settings menu or just spread everywhere in the editor
• Every "button" and menu item may be assigned with hot-key. Some default hotkeys may surprise editors from iD and Poltrach. All shortcuts will be present [Help/Preferences/Shortcuts] menu you can adjust and fine-tune them or reset at any moment.

JOSM tools

Selection:

• Select (S) - contain many modifiers
• Help/Action/LassoMode - unexplained, but you can switch between tool above and lasso by repeatedly tapping "S", then just draw a "lasso" around your objects
• Search (CTRL+F) - a very powerful tool with mini query language
• Help/Plugin/UtilsPlugin2#Selection

JOSM interface

Main articles:

• JOSM interface - this page will explain elements shown at picture below
• Help/JOSM interface customization.

JOSM Plugins

• A list of available plugins can be found at the plugin page
• Plugin descriptions within JOSM help
• Information and Documentation about various JOSM plugins can also be found starting from the ​JOSM-Plugin page in the OSM-wiki

JOSM error messages

• Error messages