Welcome to JOSM online help system

You can improve this help by clicking on "Open in Browser" below.

If you have reached this page from pressing F1 in JOSM, then you can get more specific help on a particular window, dialog, or tool, if you have the mouse cursor over that item prior to pressing F1.

Table of Contents

Getting Started

• Introduction to JOSM
• How Tos about JOSM
• Working with Relations
• ​FAQ about OSM in general

JOSM interface

• Main Menu (note: depending on which plugins you have installed you may have more options on this menu)
  • Files
  • Edit
  • View (shown when Osmarender plugin is installed)
  • View
  • Tools
  • Connection
  • WMS (shown when wmsplugin plugin is installed)
  • Layer

• Main Toolbar (the toolbar above the main JOSM window). This toolbar is highly customisable, with the ability to add and remove menus items from the preferences dialog.
  • Download from OSM
  • Upload to OSM

• Edit Toolbar (the toolbar down the left hand side of the main JOSM window)
  • Zoom
  • Selection
  • Move
  • Add Node
  • Connect nodes
  • Delete
  • AutoScale

• Views
  • Map View
  • Layer List Dialog
  • Properties Dialog
  • History Dialog
  • Selection List Dialog
  • Authors Dialog
  • Conflicts Dialog
  • Command Stack Dialog
  • Relations List Dialog

• Shortcuts

JOSM Preferences

You can set your preferences for display and other options.

JOSM error messages

• Error while parsing