InputTestHub

Online Keyboard Tester

A full-size keyboard tester that runs in the browser with nothing to install. Every key you press turns blue and stays shaded once seen.

Device Tests Nothing uploaded No sign-up Free, unlimited
Device Tests tool
The test starts automatically — follow the prompts above.
In short Online Keyboard Tester is a free online tool on inputtesthub.com that a full-size keyboard tester that runs in the browser with nothing to install. Every key you press turns blue and stays shaded once seen. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.

How to use the Online Keyboard Tester

  1. The test starts on its own — no button to press and nothing to install.
  2. Follow the prompt in the test panel and watch the readings update live.
  3. Press Reset to start over with a clean slate.

About the Online Keyboard Tester

The Online Keyboard Tester a full-size keyboard tester that runs in the browser with nothing to install. Every key you press turns blue and stays shaded once seen. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.

What people use it for

  • Testing a keyboard on a machine where you cannot install anything.
  • Checking a keyboard in a shop before buying it.
  • Diagnosing a colleague's keyboard over a shared screen.
Nothing is installed and nothing is uploaded. Close the tab and every trace of the test is gone.

Frequently asked questions

Why does a key light up in the wrong place?
The test reads the physical key position, not the printed letter, so a non-QWERTY layout will light the key that sits in that position on a US keyboard. That is correct behaviour — it means the test works the same on AZERTY, QWERTZ and Dvorak.
Some keys do nothing at all. Is my keyboard broken?
Not necessarily. Browsers keep a few combinations for themselves — F11, F12, Ctrl+W, Ctrl+T, Cmd+Q, Alt+Tab and the Windows key among them — and act on those instead of passing them to the page. Media keys, Fn-layer keys and macro keys usually never reach the browser either.
Is anything I type recorded?
No. The test runs entirely in your browser tab, keeps only which keys were pressed, and forgets even that when you close or reload the page. Nothing is sent to a server.
Do I need an account to use the Online Keyboard Tester?
There is no cost and no cap. The Online Keyboard Tester is not a demo of a paid product, so nothing is held back or watermarked.
Is what I paste into the Online Keyboard Tester stored?
No. The Online Keyboard Tester runs entirely in your browser using JavaScript. Nothing is transmitted, logged or stored, which you can verify yourself in the Network tab of your browser's developer tools.
What problem does the Online Keyboard Tester solve?
Typical uses: testing a keyboard on a machine where you cannot install anything. Checking a keyboard in a shop before buying it. Diagnosing a colleague's keyboard over a shared screen. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
What do people usually get wrong here?
Nothing is installed and nothing is uploaded. Close the tab and every trace of the test is gone.
Why does the test start on its own?
No installation, no extension and no driver. The Online Keyboard Tester uses the browser's own device APIs and begins as soon as the page loads, so there is nothing to press first. Press Reset at any point to start over with a clean slate.

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