links to plug-in help pages are missing, a lot of shortcuts from plugins are missing

JOSM Keyboard Shortcuts

The following shortcuts are the default setting. This list might be outdated. You can always look in the JOSM shortcut preferences to see all active shortcuts (except for the different mode modifiers).

You can change default shortcuts in "Shortcuts Preferences" tab

Annotated keyboard diagram based on this page

​Announcement at user blogs ​png version with ​svg source

Modes and dialogues

Main shortcut	Activation steps	page	multiple hotkeys?
S		Select objects	yes, many
S	toggled by S	LassoMode	1
A		"Standard Mode", it will draw "connected" lines	yes, 4
A	+ hold Alt	it starts a new way, rather than continuing an existing way
A	+ hold Shift	it will create isolated nodes
A	+ hold Ctrl	it will disable "snapping" to existing ways and nodes
A	toggled by A	It will enable "angle-snapping" mode
W		Improve Way Accuracy	yes, 4?
Ctrl+Delete		Delete...	yes, 3
Ctrl+Delete	+ hold Alt	the way and its' associated unused nodes are deleted.
Ctrl+Delete	+ hold Shift	will remove segments under cursor and additionally split way in two
Ctrl+Delete	+ hold Ctrl	the objects and all its references are deleted
X		Stretch a part of a way (create a building or something else)	yes, 6
X	toggled by X	Dual aligment (this mode uses two reference segments (neigbors of the original segment) and moves the nodes each according to its own reference segment)
X	+ hold Ctrl while dragging a single node	will move node along one it's adjacent segments
X	and double click at way	a double click at a way segment inserts a new node
X	+ hold Ctrl	move segment parallel to base segment
X	+ hold Shift	Always create nodes
X	+ hold Alt	Don't alter original way, create new way instead
Alt+A	then press CTRL+SHIFT+1 ... CTRL+SHIFT+5	To insert one of latest tags from "Add value" dialogue	yes, many

Tools

F3	Search presets
Shift+D	Add a node by known coordinate
Ctrl+Shift+C	Copy coordinates of selected node to buffer
Ctrl+F	Search
Shift+F3	Search objects by preset
Shift+B	Distribute nodes
Shift+J	Join overlapping Areas
B	Draw a building, aligned to the first building
Ctrl+Alt+B	Set buildings size
{{{Shift+T}}	Terrace a building
{{{Ctrl+Shift+Alt+V}}	[Help/Action/ReverseTerrace Reverse a terrace]
C	Combine Ways
F	Follow line
G	Unglue ways
J	Join Node to Way
N	Move a node to the nearest way segment
L	Align nodes into a straight line
M	Merge Nodes
O	Align nodes in circle
P	Split Way
Q	Orthogonalize Shape
R	Reverse Way
Shift+Y	Simplify Way
Del	Delete object but don't change into delete mode
Ctrl+A	Select all
Ctrl+B	[Action/CreateMultipolygon Create a multi-polygon]
Ctrl+C	Copy Way/Node etc to buffer
Ctrl+X	Cut Way/Node etc to buffer
Ctrl+V	Paste from buffer
Ctrl+Shift+V	Paste only the tags
Ctrl+D	Duplicate selected objects
Shift+M	Mirror selected nodes and ways
Shift+O	Create circle
Shift+P	Create parallel line
Shift+Q	Undo Orthogonalization for certain nodes
Escape	Unselect all
Shift+←	Move objects
Shift+↑	Move objects
Shift+→	Move objects
Shift+↓	Move objects

Objects

Ctrl+Shift+P	Remove selected objects from the layer
Ctrl+Alt+U	Reload the currently selected objects from the server
Ctrl+Alt+D	Download parent ways and relations
Ctrl+Alt+M	Reload the modified objects in the current data layer from the server
Ctrl+Alt+Shift+D	Delete tags from selected elements
Alt+Shift+U	Undelete an OSM object ("Undelete" plugin)
Shift+V	Perform validation checks for current layer or selected objects

Objects history

Ctrl+H	Show history dialog
Ctrl+Shift+H	Show history at ​http://www.openstreetmap.org
Ctrl+I	Advanced object info dialogue

Changesets

Ctrl+Alt+C	Changeset manager
Ctrl+Alt+Q	Close open changesets

interface and appearance

Tab	Toggle dialogs
F11	Fullscreen mode
Ctrl+W	Toggle between wireframe and mappaint mode

Layers

Ctrl+Shift+M	Merge the currently selected objects onto another data layer
Ctrl+M	Merges the content of current active layer into another layer of the same kind
Ctrl+F4	[HelpAction/DeleteLayer Merges the content of current active layer into another layer of the same kind]
(absent)	Duplicate selected OSM data layer

Toggle and switch between first 10 layers of Layer List Dialog

Shift+A + press 1	Activate layer 1, counting from the top
...	...
Shift+A + press 9	Activate layer 9, counting from the top
Shift+A + press 0	Activate layer 10, counting from the top
Alt+1	Show/hide layer 1, counting from the _bottom_
...	...
Alt+9	Show/hide layer 9, counting from the _bottom_
Alt+0	Show/hide layer 10, counting from the _bottom_

Viewport

Z	Zoom in by dragging
+	Zoom in
-	Zoom out
Ctrl+,	Zoom in
Ctrl+.	Zoom out
Ctrl+←	Move viewport
Ctrl+↑	Move viewport
Ctrl+→	Move viewport
Ctrl+↓	Move viewport
1	Zoom to data
2	Zoom to layer
3	Zoom to selection
4	Zoom to conflict
5	Zoom to download
6	Zoom to problem
8	Zoom to previous
9	Zoom to next
Shift+A	Cycle through the different Auto zoom modes
Ctrl+J	Opens the Jump To Position dialog
Ctrl+Shift+F	Enable/Disable automatic centring of the map view to last placed node

Workflow

Ctrl+Spacebar	Autocompletion in all menu items
Ctrl+Shift+↓	Download
Ctrl+Shift+↑	Upload
Ctrl+L	Open location
Alt+Shift+↓	Download from Overpass API
Ctrl+Shift+O	Download object
Ctrl+Alt+Shift+U	Upload Selection
Ctrl+U	Update data
Ctrl+Z	Undo
Ctrl+Y	Redo
Ctrl+N	New Layer
Ctrl+O	Open file
Ctrl+S	Save file
Ctrl+Shift+S	Save as
Ctrl+E	Export to GPX
F1	press anywhere to open main Help page
F1	press over element in question to open context-sensitive Help page
Shift+F1	About screen (with JOSM version number)
F12	Preferences
Ctrl+Alt+Shift+J	Restart JOSM
Ctrl+Q	Exit JOSM

Audio menu

.	Play/pause
F8	Next Marker
F5	Previous Marker
F7	Forward
F6	Back
F9	Faster
F4	Slower

Toggle Dialogs

Alt+Shift+L	Layer List Dialog	List of all open layers. Note that it contains different menus for the different layer types.
Alt+Shift+P	Tags/Memberships Dialog	Tags and memberships of selected objects.
Alt+Shift+C	Selection Dialog	Selection list window.
Alt+Shift+R	Relations List Dialog	List of all relations.
Alt+Shift+O	Command Stack Dialog	List of all commands (undo buffer)
Alt+Shift+A	Authors Dialog	List of Authors of selected objects
Alt+Shift+C	Conflict List Dialog	List of unsolved conflicts.
Alt+Shift+V	Validator Dialog	Validator window
Alt+Shift+F	Filter Dialog	Filter objects and hide/disable them.
Alt+Shift+M	Map Style Dialog	Configure the map painting style.
Y	Photo Dialog	(only if photos are loaded; defaults to open as unsticked window)

Was explained at Help/ToggleDialogs.

(continue cleanup/sort below)

all modes

Click-RightMouse	Click and drag to move the map.
Scroll-Wheel	Zoom in and out.

Note: In ​gnome desktop environment "Alt"-Click is used for moving the window. The "AltGr" key can be used instead; note that on some keyboards the "AltGr" key is simply the right-hand "Alt" key.

See also

• Auto generated list of shortcuts

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