Keyboard Tester
Click the keyboard and press each key in turn. Keys light up while held and stay marked once tested, so a dead or sticking key stands out.
While the tester has focus, keys that would scroll the page or take you away from it, such as Space, the arrows, Tab, Backspace and F5, only light up here. Press Escape or click outside the keyboard to stop.
- Tested
- 0 of 104 keys tested
- Keys held now
- 0
- Most held at once
- 0
Last key
None yet
- key
- –
- code
- –
- location
- –
Keys not on this layout
None yet. Media keys, extra function keys and keys that only some countries’ layouts have appear here.
Keys not tested yet: 104
Escape, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, Backtick, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, Minus, Equals, Backspace, Tab, Q, W, E, R, T, Y, U, I, O, P, Left bracket, Right bracket, Backslash, Caps Lock, A, S, D, F, G, H, J, K, L, Semicolon, Quote, Enter, Left Shift, Z, X, C, V, B, N, M, Comma, Period, Slash, Right Shift, Left Ctrl, Left Windows or Command, Left Alt, Space, Right Alt, Right Windows or Command, Menu, Right Ctrl, Print Screen, Scroll Lock, Pause, Insert, Home, Page Up, Delete, End, Page Down, Up arrow, Left arrow, Down arrow, Right arrow, Num Lock, Number pad /, Number pad *, Number pad -, Number pad 7, Number pad 8, Number pad 9, Number pad +, Number pad 4, Number pad 5, Number pad 6, Number pad 1, Number pad 2, Number pad 3, Number pad Enter, Number pad 0, Number pad .
Nothing you type is sent or kept. Reset or closing the page clears it.
Check every key on your keyboard
A key that doesn’t respond, types twice or sticks is easy to miss until it spoils a password or a long document. This tester draws a full-size keyboard, lights each key the moment it goes down and marks it tested once it comes up, so you can work along the rows and see at a glance which keys still need a press.
How to use it
- Click the keyboard, or press Start testing.
- Press each key in turn. It lights up while you hold it and turns green once you let go.
- Watch the count, and open the list of keys not tested yet to find any you missed.
- Hold several keys together to see how many your keyboard reports at once.
- Press Escape or click outside the keyboard to stop. Reset starts again.
Reading the last key
- key is what the key types or does with your layout and modifiers, such as “a”, “A” or Shift.
- code names the key’s physical position, after the key in that spot on a US keyboard. The key marked A on a French AZERTY keyboard reports KeyQ, so the drawing lights the position you pressed, whatever your layout.
- location tells left from right for Shift, Ctrl, Alt and Windows or Command, and marks the number pad.
What it can’t see
- Fn is usually handled inside the keyboard itself and never reaches a web page. The same goes for some media and system keys.
- Shortcuts your system keeps, such as some with the Windows or Command key, are taken before the page sees them.
- On-screen keyboards report few position codes, and a phone’s won’t open here. Connect a physical keyboard to test it.
- A key that stays lit after you let go is still reported as held: it may be sticking, or its release went missing. Press and release it again to check.
Good to know
- While testing, keys that would scroll the page or take you away from it only light up here. Escape always leaves.
- Lock keys (Caps Lock, Num Lock and Scroll Lock) are marked tested as they go down and aren’t counted as held, because systems differ in when they report them coming up.
- Keys not on the drawing, such as media keys, are listed below it with their code.
- Private: nothing you type is sent or kept. Once every key works, the Typing Test measures your speed on it.