Additional Plugins for JOSM

name	download	author	description
annotation-tester	​http://www.eigenheimstrasse.de/josm/plugins	Imi	Adds the annotation tester to the help menu. You can start the jar-file as standalone as well ;) TODO: Please describe what annotation testing is (or add a link)?!?
landsat	​http://www.free-map.org.uk/downloads/josm/	Nick Whitelegg	Landsat background. Note: This plugin is discontinued. It should still work but is superseded by the wmsplugin (below) which can do everything that landsat does and more.
lang-*	​http://www.eigenheimstrasse.de/josm/plugins	Imi	Translations of JOSM into UK-english, french, romanian and german
livegps	​http://trac.openstreetmap.org/browser/utils/josm/plugins/livegps/livegps.jar	Frederik Ramm	Supports live GPS input ("moving dot") through a connection to "gpsd"
mappaint	​http://www.free-map.org.uk/downloads/josm/	Nick Whitelegg	An alternative render for the map with colouring, line thickness, icons after tags. You need an ​elemstyles.xml saved into ~/.josm/plugins/mappaint/. "Trunk" version of that file is at ​elemstyles.xml
nearclick	​http://josm.eigenheimstrasse.de/download/plugins/nearclick.jar	Imi	Simulates a click when you do a small and short drag. This is usefull for tablet pens, when you have problems just clicking the tablet without the mouse moving (general Java<->tablet problem).
osmarender	​http://www.eigenheimstrasse.de/josm/plugins	80n (xml) and Imi (plugin)	Displays the current screen as nicely rendered SVG in FireFox. Activate with new menu item View/Osmarender. You need to have FireFox installed and set the Firefox executable under Preferences/MapSettings.
plastic_laf	​http://www.eigenheimstrasse.de/josm/plugins	Imi	The Plastic look and feel from www.jgoodies.com
slippymap	​http://trac.openstreetmap.org/browser/utils/josm/plugins/slippymap/slippymap.jar	Frederik Ramm	Displays a slippy map grid in JOSM. Can load tiles from slippy map as background. Alpha version!
tways	​http://thomas.walraet.net/tways/	Thomas Walraet	Mass wayfication of segments. It creates one way per "segment chain", ie segments that follow each others with the same alignment and no intersection.
UtilsPlugin	​http://kleptog.org/temp/UtilsPlugin.jar	Martijn van Oosterhout	Several utilities I made to make my life easier: Merge Points, Join Point and Segment, Merge Ways, Way Deduplicator. Also prototype JosmLint (checks for problems with map while editting.)
validator	​http://personales.ya.com/frsantos/validator.jar	Francisco R. Santos	Data validator. It checks for problems in data, and provides fixes for the common ones. Spellcheck integrated for tag names.
waypoints	​http://www.free-map.org.uk/downloads/josm/	Nick Whitelegg	Import waypoints with names from GPX into datalayer. Note: josm-latest.jar has this feature integrated.
wmsplugin	​http://chippy2005.googlepages.com/wmsplugin.jar	Display background images from any WMS source. Also supports using Metacarta's ​Map Rectifier to display warped WMS images

Installation

Copy the jar files into ~/.josm/plugins. On Windows, this is C:\Documents and Settings\<login name>\Application Data\JOSM instead. Create a folder in there called 'plugins', and put the .jar files in there.

On Mac OS X you won't see these folders in the Finder, open Terminal to find the folders (UNIX folders with a dot as prefix are hidden). In the Finder you can "Go" > "Go To Folder..." and enter "~/.josm".

Want to create plugins? Go here: DevelopingPlugins