Test Your Devices.
Fast, Free, and Private.
Check if your keyboard, mouse, microphone, or webcam is working perfectly. No downloads, no sign-ups—just simple tools that run safely right in your browser.
Keyboard Tester
Find broken keys, check for typing ghosting, and make sure every button on your laptop or mechanical keyboard actually works.
Test Keyboard NowMouse Tester
Check for annoying double-clicks, test your scroll wheel, and make sure your left and right mouse buttons respond smoothly.
Check Mouse HealthMic Check
Listen to yourself to make sure you sound clear before your next Zoom call or gaming session. Catch background noise early.
Test MicrophoneWebcam Test
Check your camera quality and make sure you're in focus. Your video stays 100% private and never leaves your computer.
Test WebcamDomain Checker
Got a website idea? Check if the domain name is available, or look up the DNS records and background info of any site.
Lookup a DomainWhat is my IP?
Instantly find out your public IP address, see who your internet provider is, and check where your connection is located.
Find My IPGamepad Tester
Check for stick drift, test vibration, and calibrate every button on your Xbox, PlayStation, or generic controller instantly.
Start TestingWhy Use TestMyKey?
Whether your spacebar is sticking, your mouse is double-clicking, or you just want to make sure your mic isn't muted before a meeting, we give you the easiest way to figure it out for free.
Your Privacy Comes First
We don't save your keystrokes, your camera feed, or your microphone audio. Everything happens right on your own computer.
Zero Downloads Needed
Don't clutter your PC with random software. Our tools run smoothly directly inside your web browser.
Quick Device Check
Catch broken hardware before it drives you crazy. Test your keys and buttons to see if it's a hardware issue or just a software glitch.
Network Tools Included
Not sure if your VPN is working? Use our IP lookup tool to instantly see where your internet traffic is actually coming from.
Got Questions?
Here is everything you need to know about our tools.
Why should I test my hardware here?
It's fast, free, and safe. Instead of downloading random software to check if your mouse is broken, you can just click a few buttons here and find out immediately.
Is it safe to test my webcam and microphone?
Absolutely. When you click 'Start,' your browser asks for permission. We only create a private preview so you can see and hear yourself. We never record or save your data.
Why does my mouse double click sometimes?
This usually happens when the tiny switches inside your mouse get old or worn out. You can use our Mouse Test tool to prove if it's actually double-clicking so you know if you need to buy a new one.
Will this tell me if my keyboard is broken?
Yes! Simply open the Keyboard Tester and press every key. If a key doesn't light up on the screen, that means your computer isn't receiving the signal, and that key is likely broken.
Are these tools really free?
Yes, 100% free. We built these tools because we needed them ourselves, and we wanted to share them with everyone else online.
Does this work on my phone?
Yes! While testing a physical keyboard is obviously better on a computer, you can easily test your phone's microphone, camera, and IP address using our mobile-friendly site.