Active Keys
Previously Pressed
Untested
Test your keyboard's performance instantly with our premium online tool. Identify unresponsive keys, ghosting, and mapping issues with real-time visual feedback.
A keyboard tester is a diagnostic tool that checks if each key on your keyboard responds appropriately. It was initially developed for computer technicians in the 1980s. Over time, these tools became essential as keyboards evolved into complex gaming and professional input devices.
Our browser-based keyboard tester provides instant feedback about key functionality. No software installation is required.
Whether you're a gamer checking key rollover, a programmer testing reliable input, or someone facing typing issues, this tool helps. It quickly identifies faulty or unresponsive keys.
Our keyboard tester follows these steps:
Open the tool in your browser; it automatically detects your keyboard layout and works immediately without setup.
Type in the text area, or press keys directly. Each keypress is captured and analyzed in real-time.
Watch the virtual keyboard display:
Test multiple keys simultaneously to check rollover limits, ghosting, and response timing.
Review the complete diagnostic breakdown showing key response times, detected issues, and functionality assessment.
Ready to Test Your Keyboard?
Instantly highlights keys on the virtual keyboard as you press them, helping detect non-responsive keys
Supports major layouts including QWERTY, AZERTY, and Dvorak, auto-adjusted to match your device
Measures how fast your keys respond with real-time timing analysis and performance breakdown
Detects key rollover, ghosting, and simultaneous keystroke limits for gaming-level diagnostics
Dead or stuck keys that don't register when pressed. The tool immediately identifies which specific keys aren't responding, helping determine if it's a hardware failure or connection issues.
When pressing multiple keys results in unintended additional characters. The tester precisely identifies which key combinations trigger ghosting, a crucial factor for gaming performance.
Multiple simultaneous key presses that aren't detected properly. Testing reveals your keyboard's rollover limitations and hardware constraints.
Keys that register slowly or inconsistently. Visual feedback shows timing issues, indicating worn switches or connection problems.
Quick tests. Instant results. No downloads.
When you complete testing, you receive comprehensive diagnostic information:
Visual display of all tested vs untested keys
Real-time indication of working vs problematic keys
Speed analysis for each key pressed
Identification of ghosting, jamming, or delay problems
Overall keyboard health assessment
Example: Press 'A' key = Instant blue highlight + response registration
Example: Multiple rapid keypresses = Rollover capability assessment
Our online keyboard tester utilizes professional-grade detection methods, providing accurate diagnostics to inform troubleshooting decisions.
Use a soft microfiber cloth to gently wipe the key surfaces, removing dust, oils, and debris. Refer to the keyboard cleaning guide on HP's Tech Takes for safe and effective instructions
If you spill liquid, unplug your keyboard and flip it over right away. Use the keyboard tester to check for unresponsive keys, then follow this spill clean recovery guide for better tips.
Frequent gaming sessions can wear out keycaps and switches. For optimal upkeep, follow these gaming keyboard cleaning tips .
Get answers to common questions about our keyboard testing tool.