Keyboard Tester

About

A lightning-fast, zero-dependency keyboard tester right in your browser.

Test your mechanical keyboard, laptop keyboard, and custom macro pads instantly from a convenient popup, without ever needing to open a new tab or search for a testing website.

【 ✨ FEATURES 】

- Instant Recognition: Open the popup and start pressing keys! They will instantly map to the on-screen 60% visualizer grid.
- NKRO (N-Key Rollover): See exactly how many keys your keyboard can register simultaneously. Detects if you have true Full N-key Rollover or a cheaper 6-Key limit.
- CPS (Clicks Per Second): Test your raw typing or butterfly-clicking speed with customized time trials (5s, 10s, 30s).
- Physical Diagnostics: Built-in safeguards like double-click/chatter detection (< 30ms) and hardware drop-off testing to catch faulty switches.
- Real-Time Visuals: See your last pressed key highlighted prominently with zero latency.
- Always Accessible: Works seamlessly from your Chrome toolbar, whether you're on Windows, Mac, or ChromeOS.


【 🕹️ HOW TO USE 】

1. Connect your Keyboard:
Ensure your keyboard is plugged in via USB, or connected via Bluetooth/2.4G.

2. Open the Popup:
Simply click the extension icon in your Chrome toolbar to open the tester window.

3. Test Away:
- Mash the keyboard to test your NKRO limits!
- Click "Start Test" on the CPS card to measure your clicking speed.
- Click "Start Test" on the Drop-Offs card and hold a key down to test hardware stability.


【 🧰 NEED MORE PROFESSIONAL TOOLS? 】

This extension is a lightweight version of our comprehensive testing suite. If you need to test full 100% layouts, Mac/Windows specific keys, or diagnose ghosting matrices in depth, check out our full platform:

🔗 https://keyboardtest.io

Our main website features:
* Full 104-Key and TKL Layout Visualizers
* Detailed RGB Key-Matrix Tracking
* Custom Keycode Logs
* Mac and Windows operating mode toggles
* Advanced Chatter Analytics


【 👨‍💻 ABOUT THE DEVELOPER 】

Built with ❤️ by Luke.

I create web tools and SaaS products. If you're interested in my work, have feedback, or want to collaborate, feel free to reach out!

🌐 Portfolio & Contact: https://lukeio.com/contact/