Keyboard Tester

A standalone keyboard tester that allows diagnosing NKRO, chatter, and drop-offs locally.

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/