Where can I find a keyboard viewer for Mac OS X?

Question

How can I find a virtual keyboard viewer for my MacBook Pro running OS X Lion 10.7.5?

Solution

Go to System Preferences -> Keyboard and check the Show Keyboard & Character Viewer in menu bar.

Now in the menubar you can see a flag icon of the language you're using. Click on it and then click Show Keyboard Viewer.

Now you will have the following virtual keyboard viewer:

Comments

[slhck]

… or open /System/Library/Input Methods/KeyboardViewer.app.

[brevno]

If you open KeyboardViewer directly (or from an application like Alfred) and close the window by pressing the close button, the process stays open and keeps using about 0-5% CPU.