Caps Warn is a great little utility that I've started using. The developer says that this program is designed for the following use:

"CAPS Warn is designed for people who type with one hand using Sticky Keys, or for anyone who presses the Caps Lock key frequently by mistake."

But that's not why I use it. My Keyboard & Mouse is the Logitech S530 wireless keyboard & Laser wireless mouse set. In order to conserve battery life, the wireless keyboard had no indicator for the Caps Lock. Since my keyboard doesn't tell me if my Caps Lock is on or not, this utility is really handy.

Caps Warn can be configured to do more than just Caps Lock notification, but I'll focus on that since it's how I use it. The default setting is to display a red outline of an Up Arrow if Caps Lock are turned off, and a filled in red arrow if Caps Lock are enabled.



This is with Caps Lock turned OFF:

This is with Caps Lock turned ON:

I prefer another setting which is more discrete, and doesn't use up precious menu bar space, and that is to have nothing show when Caps Lock are off, and it will display a small red box at the very top left of your screen, left and above the Apple Menu.

This is what it looks like:

By the way, regardless of which display option you choose, the notifications also light up if you engage the Shift key.

John Woodward developed this utility, you can find it at his website.

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