Test Every Key on Your Keyboard Online
Press any key on your keyboard to instantly detect dead keys, switch chatter, and ghosting (NKRO).
How to Test Your Keyboard in 4 Easy Steps
Complete key audit in under 30 seconds with no downloads or installation.
Choose Your OS & Layout
Select Windows or Mac and match your physical form factor (100% Full, 80% TKL, 75%, 60%, or Laptop) so every key on your desk is represented accurately.
Press Every Physical Key
Press keys one by one or in combinations. Keys light up amber while held down and turn vibrant green once released and verified.
Inspect Dead Keys & Chatter
Any key that remains grey has a broken trace or failed switch. A key that flashes red has switch chatter (double-firing bounce).
Test NKRO & Export Report
Press multiple keys simultaneously to verify N-Key Rollover (NKRO). When finished, download a comprehensive diagnostic report.
Common Keyboard Problems Diagnosed
Our high-speed JavaScript engine checks every switch contact and timing latency in real-time.
If a key stays grey when pressed, no signal reached the browser. Common causes: worn switch contact, PCB trace damage, or loose laptop ribbon cable.
When pressing 3+ keys together drops one of them, the keyboard matrix has ghosting. True NKRO keyboards register all simultaneous keys without blocking.
When a single physical click registers two or more keydown signals, switch bounce is occurring. Our engine detects and highlights chatter in red.
Sticky switches cause sluggish return and delayed keyup events. Locate affected keys and clean them with 99% isopropyl alcohol.
Explore Peripheral & Typing Tools
All-in-one suite to benchmark your desk setup: mice, switches, latency, and typing speed.
Brand Keyboard Tests
Logitech, Razer, Corsair, Ducky, SteelSeries, Keychron & Wooting.
Mouse Button Test
Verify left, right, middle, side buttons and scroll wheel fluidity.
Typing Speed Test (WPM)
Measure Words Per Minute, accuracy percentage and consistency.
Touch Typing Practice
Interactive typing lessons from home row to full alphanumeric.
Spacebar Counter
Count rapid spacebar presses and measure Clicks Per Second (CPS).
Switch Sound Test
Listen to Cherry MX Red, Blue, Brown, optical and Hall effect sounds.
Switch Type Comparison
Compare mechanical, membrane, optical and magnetic switches.
Keyboard Latency Test
Check input delay and estimate effective USB polling rate.
Key Event Identifier
Look up JavaScript event.code, key, keyCode and modifier locations.
Shortcuts Cheat Sheet
Searchable Windows, Mac & Linux productivity shortcuts.
Keyboard Trivia Quiz
Test your mechanical keyboard knowledge with 20+ questions.
Symbols & Alt Codes
Quick copy Alt codes and Mac shortcuts for special symbols.
Keyboard Layouts Guide
Compare Full, TKL, 75%, 65%, 60% and ergonomic formats.
How Many Keys Guide
Breakdown of key counts from 61 to 108 keys.
Troubleshooting Guides
In-depth guides to fixing chatter, dead keys, ghosting and spills.
Peripheral Comparisons
Mechanical vs membrane, switch types and brand comparisons.
Frequently Asked Questions
Everything you need to know about testing keyboards on Windows, Mac, and Linux.
Ready to Test Your Keyboard?
Scroll back up to the interactive tester and press any key to verify your keyboard health in seconds.