8 tools: Mic test, Keyboard tester, Webcam test, Gamepad tester, Dead pixel test, Speaker test, Mouse test, Refresh rate test. All tools are free of cost and do not require registration.
You can search by the name of an exam, an identity document or an application form.
When you speak, the level bar should move with your voice. This page shows the input level in dB, warns when the peak reaches 0 dB (clipping) and records 5 seconds so that you can hear yourself.
Press any key and the same key lights up on the keyboard map. Keys you have pressed stay marked, so any key left unmarked was not detected. Full-size 104-key, 87-key, 60% and Mac layouts are available.
After you allow the browser to use the camera, a live picture in step 2 means the camera is working. The page also shows the actual resolution (for example 1280 × 720), the frames per second and the brightness of the picture.
Connect the controller and press any button. Step 2 then shows live readings for 17 standard buttons, 2 sticks and 2 triggers. When you release a stick, its reading should return close to 0; if not, the stick may be drifting.
The screen is filled with 6 solid colours in turn: black, white, red, green, blue and grey. A dot that stays lit on black is a bright pixel, and a dot that stays dark on white is a dead pixel. Click or press Space to change colour, and press Esc to leave.
If “Left” plays only on the left and “Right” plays only on the right, your left and right channels are correct. The page also plays a 20 Hz to 20 kHz sweep and, when the system output is 5.1, tests each of the 6 channels.
In the test area, press the left, right and middle buttons and both side buttons, and scroll the wheel up and down. Each part lights up on the mouse picture. Two presses less than 40 milliseconds apart are marked as a possible double click.
The refresh rate appears about 2 seconds after the page opens. It is measured from the frames the browser actually draws each second: about 60 on a 60 Hz screen and about 144 on a 144 Hz screen.