CapsLock Indicator for Windows

Quick overview

CapsLock Indicator is a compact, open-source utility (created by Jonas Kohl) that displays the current state of Num Lock, Caps Lock, and Scroll Lock in your system tray. It’s especially helpful on laptops and other keyboards that lack physical LED indicators, since the app gives an immediate visual cue for each lock key.

Core capabilities

• No installation required — run it from any folder after downloading.
• Shows real‑time icons in the notification area for Num Lock, Caps Lock, and Scroll Lock.
• Lets you receive on‑screen alerts when a lock key changes.
• Offers options to control background, text, and border colors for the indicators.
• Can be configured to launch automatically and minimize to the tray at startup.
• Designed to be lightweight and easy to use, with minimal setup needed.

Appearance and notification controls

• Designed for ease of use with a shallow learning curve.
• Option to enable automatic startup so the app is ready as soon as Windows boots.
• Change the visual style: tweak icon backgrounds, borders, and label text.
• Fine-tune how notifications appear and for how long they are displayed.
• Select which lock icons you want visible in the tray.
• Remains portable — you can copy it to a USB stick and run it on other machines.

Getting started

1. Download the program and unzip it to a folder of your choice.
2. Launch the executable — no installer or admin rights are necessary.
3. Open the Settings panel to choose which icons to show, pick colors, and adjust notification behavior.
4. If desired, enable the option to start the tool automatically on boot so it hides to the tray immediately.
5. After configuring, leave the utility running in the tray; access the settings anytime to make changes.

Who should use this

• Laptop users whose keyboards don’t have dedicated indicator LEDs.
• People who frequently switch typing modes and want instant feedback.
• Users who prefer a small, portable tool that doesn’t require installation.

Alternate option

If you’d like a different lightweight choice, consider NumCapsScroll Indicator — another free, portable utility that provides similar tray indicators for lock keys.