M
MJJ Tools
Home
Daily Tools
Keyboard Checker
M
MJJ Tools

Discover 70+ free online tools including calculators, converters, generators, and utilities. All tools work in your browser - no downloads required!

Popular Tools

  • ACFT Calculator
  • JSON Formatter & Validator
  • Chinese English Translator
  • Base64 Encoder/Decoder

Categories

  • Math Tool
  • Developer Tool
  • Finance Tool
  • Daily Tools

Info

  • About Us
  • Changelog
  • Privacy Policy
  • Terms of Service

© 2025 MJJ Tools. All rights reserved.

Keyboard Checker

Test your keyboard keys to identify stuck, broken, or malfunctioning keys. Interactive keyboard tester with visual feedback for comprehensive hardware testing.

Test Controls

Click 'Start Test' and begin pressing keys on your keyboard. Each key you press will be registered and marked as working.

Note: Function keys (F1-F12) may require clicking the page first and may trigger browser actions.

Test Progress
0
Tested
0
Working
0
Broken
0%
Complete
Visual Keyboard
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
1
2
3
4
5
6
7
8
9
0
Q
W
E
R
T
Y
U
I
O
P
A
S
D
F
G
H
J
K
L
Z
X
C
V
B
N
M
Untested
Working
Broken
Special Keys
Space
Enter
Backspace
Delete
Tab
Esc
Caps Lock
L Shift
R Shift
L Ctrl
R Ctrl
L Alt
R Alt
↑
↓
←
→
How to Use
  1. Click the 'Start Test' button to activate keyboard testing mode.
  2. Press each key on your keyboard that you want to test. The tool will detect and record each keypress.
  3. Watch the visual keyboard display update in real-time as you press keys, showing which keys are working.
  4. Monitor the progress statistics to see how many keys you've tested and their status.
  5. Use the 'Reset Test' button to clear all results and start testing from scratch, or 'Stop Test' to pause testing.
Common Use Cases

Troubleshooting Issues

Identify specific keys that are not responding or registering multiple presses when diagnosing keyboard problems.

Regular Maintenance

Perform routine checks on your keyboard to ensure all keys are functioning properly before important work sessions.

Before Purchase

Test used or refurbished keyboards to verify all keys work correctly before making a purchase decision.

Gaming Setup

Ensure critical gaming keys (WASD, space, etc.) are fully functional for optimal gaming performance and responsiveness.

About Keyboard Checker

Our Keyboard Checker is a comprehensive tool designed to test the functionality of every key on your keyboard. Whether you're troubleshooting issues, performing maintenance, or testing a new keyboard, this tool provides real-time visual feedback and detailed statistics about your keyboard's performance.

Key Features:

  • Real-time key detection and registration with instant visual feedback
  • Comprehensive testing of letters, numbers, function keys, and special keys
  • Visual keyboard display showing tested, working, and problematic keys
  • Progress tracking with detailed statistics and completion percentage
  • Support for standard keyboards, mechanical keyboards, and laptop keyboards
  • No installation required - works directly in your web browser

Compatible with all modern browsers and keyboard layouts. Works with Windows, Mac, and Linux systems.