Why is my numpad typing arrows or moving the cursor instead of numbers?

Num Lock is off. In that mode the keys send navigation actions like arrows, Home, and Page Up. This test still lights them because it reads the physical key, but you need Num Lock on to type digits in other apps.

Does Num Lock have to be on to test the numpad?

No. The test matches each key by its physical position, so every key lights whether Num Lock is on or off. Turn it on only when you want the keys to type numbers somewhere else.

How do I tell a dead key from a stuck key?

Press the key and watch its tile. A dead key never lights up. A stuck key turns green and stays green after you let go.

My laptop has no number pad. Can I still use this?

Try it. Many laptops hide a number pad under the letter keys behind an Fn or NumLk key. Turn that layer on and press the keys. Tiles that light mean it works here. Dark tiles mean the layer sends some other key, and this test skips those. A slim or tenkeyless keyboard with no numpad has nothing for this test to read.

Is numpad Enter the same as the main Enter key?

No. They're two separate switches that send different codes, which is why some programs treat them differently. The test shows them as separate keys so you can check each one.

Numpad Tester

Numpad keys not working or typing arrows instead of numbers? Test every number pad key in your browser, find dead or stuck keys, no Num Lock guesswork.

Vadim Cheban October 14, 2026

Use the number pad below and press each key. Anything that doesn’t light up is dead or stuck.

How to use

Click the page first. Click once anywhere on the page so it captures your key presses, then move to the number pad.
Press every key. Work across all 17 keys: Num Lock, 0 through 9, the decimal, the four operators, and Enter.
Watch the tiles. A tile that lights green works. One that never lights is dead, and one that stays green is stuck.
Skip the Num Lock dance. The test reads keys by physical position, so it works the same with Num Lock on or off.

Why test this

A number pad fails in small ways. One key stops registering, another sticks, or the whole pad starts moving the cursor instead of typing digits. You feel it first in a spreadsheet or an invoice, when a 7 never lands or the screen scrolls when you meant to type. Every key gets checked in seconds. Press a key and its tile lights up, so a dead switch or a sticky one shows itself right away. Physical position is how the test reads each key. That's the part most testers miss: they tell you Num Lock has to be on, then show nothing when it's off. This one lights the right key either way. Run it on a keyboard you're about to buy used, after a spill, or any time the numbers stop behaving. Operator keys and numpad Enter are in there too, not just the digits.

What the results mean

Green means the key is down right now. Blue means you already pressed it this session, so you can watch your progress across all 17 keys. A key that never lights is dead, unless your pad doesn't have it. One that stays green after you let go is stuck. The "Last key" readout names what the browser received. With Num Lock off it reads Arrow, Home, or Page Up instead of a digit, because your system treats the pad as navigation keys in that mode. The tile lights anyway, since the test matches the physical key, not the character. Numpad Enter is its own tile, separate from the main Enter, so you can check both switches.

Example numpad test result: 16 of 17 keys tested, with the 5 key still dark.

FAQ

Why is my numpad typing arrows or moving the cursor instead of numbers?: Num Lock is off. In that mode the keys send navigation actions like arrows, Home, and Page Up. This test still lights them because it reads the physical key, but you need Num Lock on to type digits in other apps.
Does Num Lock have to be on to test the numpad?: No. The test matches each key by its physical position, so every key lights whether Num Lock is on or off. Turn it on only when you want the keys to type numbers somewhere else.
How do I tell a dead key from a stuck key?: Press the key and watch its tile. A dead key never lights up. A stuck key turns green and stays green after you let go.
My laptop has no number pad. Can I still use this?: Try it. Many laptops hide a number pad under the letter keys behind an Fn or NumLk key. Turn that layer on and press the keys. Tiles that light mean it works here. Dark tiles mean the layer sends some other key, and this test skips those. A slim or tenkeyless keyboard with no numpad has nothing for this test to read.
Is numpad Enter the same as the main Enter key?: No. They're two separate switches that send different codes, which is why some programs treat them differently. The test shows them as separate keys so you can check each one.

How we measure

The test listens for key presses anywhere on the page and keeps only the 17 keys of a standard number pad: Num Lock, 0 to 9, the decimal point, the four math keys and Enter. It ignores every other key, and anything typed into a text box on this page.

The test matches each key by its code, which names the physical key on the pad. A USB keyboard sends the same keypad key whether Num Lock is on or off, and your system decides what it does after that. On Windows, the numpad 7 key doubles as Home, and Chrome reports it as numpad 7 either way. So the tile lights in both modes, while the Last key readout shows what the key did: 7 with Num Lock on, Home with it off.

A tile holds green only while its key is down, then keeps its tint once you release it. Keys tested shows how many of the 17 you've lit. Holding a key adds nothing. The browser flags each auto-repeat and the test drops it. Click away to another window and held tiles clear, because their release never reaches this page.

What a browser cannot see

On a Mac, the browser reports the keypad's Clear key under the Num Lock code, so Clear lights the Num tile. Keys outside the 17, like a keypad = key, aren't on this pad. They don't light and don't count.

A laptop's built-in number layer, turned on with Fn or a NumLk key, shows up here only if it sends real keypad keys. Some layers send other keys instead, and those leave every tile dark.

No light only means no press arrived. Your pad may not have that key, or its switch may be dead, and the tile can't tell you which. With a separate USB numpad and a full keyboard both plugged in, 7 on either one lights the same tile. The browser never says which device sent a key, so test them one at a time.

A switch that fires twice from one press looks like a single press here, because the test marks each key once and never times it. For doubled digits, type a column of numbers into a spreadsheet and scan it.

Sources

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