Keyboard and Mouse Tester – Check Your Keys and Clicks Instantly Online

Published: 13 Nov 2025

Your keyboard and mouse are the two most important tools for using a computer.
When even one key or click stops working, it can slow down your work or gaming.
Our online Keyboard and Mouse Tester helps you check both devices quickly — no software needed.

💡 What Is a Keyboard and Mouse Tester?

The Keyboard Tester shows you which keys are working when you press them, while the Mouse Tester checks the left, right, and middle clicks, as well as scroll movement.
Both tools are free and run directly in your browser.

🧠 How to Use the Keyboard Tester

  1. Open the Keyboard Tester Tool on your screen.
  2. Press any key — the same key will light up on the screen.
  3. Check all keys, including Shift, Spacebar, and Enter.
  4. If a key doesn’t respond, clean your keyboard or reconnect it.

🖱️ How to Use the Mouse Tester

  1. Open the Mouse Tester Tool.
  2. Click your left, right, and middle buttons — each should highlight.
  3. Scroll up and down to test the wheel.
  4. Move the mouse around to check if pointer movement is smooth.
  5. If a click doesn’t register, reconnect or replace your mouse.

⚙️ Why Use These Tools?

  • Detect stuck or dead keys.
  • Check for double-clicking or unresponsive mouse buttons.
  • Test new or old devices before using them.
  • Free, fast, and no installation required.
  • Works on any browser and device.

🧹 Tips for Better Testing

  • Clean your keyboard and mouse before testing.
  • Use a flat surface for accurate mouse movement.
  • For laptops, turn off “Num Lock” or “Function Lock” if needed.
  • Repeat the test occasionally to keep your devices working sm
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this is the project

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