JOSM Applet

JOSM can be used in different ways. It is a standalone application, a webstart application and a Java applet. This page describes the usage as Java applet.

The URL for the access to JOSM as Java applet is applet. This URL supports additional arguments:

argument	default	description
width	100%	width of the applet area
height	100%	height of the applet area
url	-	URL to be loaded at startup

The applet has some differences compared to the normal JOSM.

• Not all options are available. For example all functions accessing local files are disabled.
• Preferences are stored on the JOSM server (not OSM server).
  • Either you are logged in on the JOSM website or the applet will ask you to provide login data on startup.
  • You can use the applet also without login, but you can't load/save preferences in this case.
  • You need to upload preferences to server to keep them in following sessions (last entry in edit menu).
  • It is recommended to use OAuth, or OSM username will be saved in plaintext on JOSM server (password is removed).

NOTE: Do not confuse JOSM and OSM logins. They are separate.