Client-side engine
Keyboard tester
Press keys and watch them light up. Free. Events stay in this tab.
Click here, then press keys. Last key: —
- Browser keyboard events
- Depends on the OS and browser key map
Workflow
How to use Keyboard tester
Three steps. This runs in your browser. What you type is not uploaded by this tool.
- 01
Click the tester so it has focus.
Click the tester so it has focus.
- 02
Press keys.
Press keys.
- 03
Watch which keys light up.
Watch which keys light up.
Direct answers
Essential questions answered
Short answers for search and answer engines. Same facts as the FAQ.
How do I test my keyboard online?
Focus the tester and press keys. Lit keys were detected.
Are keystrokes uploaded?
No. Events stay in this tab.
Why is a key missing?
Browsers do not expose every hardware key.
Practical applications
Good for everyday workflows
Find a stuck key
Press keys and watch them light up on a layout. Find stuck or unresponsive keys.
Check a new keyboard
Press keys and watch them light up on a layout. Find stuck or unresponsive keys.
Verify arrow and modifier keys
Press keys and watch them light up on a layout. Find stuck or unresponsive keys.
Got questions?
Frequently asked questions
Is the keyboard tester free?
Yes on ToolStudio.
Does this log what I type?
No server logging. Clear the map anytime.
Do media keys work?
Often not; browsers hide many media keys.
More utilities tools
Pick a tool. Get it done.
Free browser utilities on ToolStudio. No account. Most tools keep files on this device.