PocketPlay
中文
Device Tester
Check your camera, microphone, speakers, keyboard, mouse and screen in one page before a call or a stream.
Camera
Microphone
Speak normally — the bar should reach the middle without hitting the red end.
Speakers and headphones
Play a test tone in one ear at a time to check the left/right channels and spot a dead side.
Screen and browser
Keyboard
Press any key — held keys show above, everything you pressed is listed below. Some keys are captured by the operating system and never reach the page.
Keys seen
Mouse and touch
Move, drag, scroll and click inside the box. Right-clicking here tests the secondary button without opening the menu.
How to test your devices before a call
- Click Test camera and Test microphone and allow access — you should see yourself and watch the level bar move when you speak.
- Play the left and right test tones to confirm both channels of your headphones work.
- Tap keys, move the mouse in the box, and read the screen panel for resolution, pixel ratio and refresh rate.
FAQ
Is my camera or microphone recorded?
No. Nothing is recorded, saved or sent anywhere — the preview and the level meter are live and disappear the moment you press stop or leave the page. This tool only reads the streams to show you they work.
The camera light stays on after I finish. Why?
Press Turn camera off: that stops every track and the indicator goes out within a second. Reloading or closing the tab does the same. If a light stays on after that, another application — a meeting app in the background is the usual culprit — is holding the camera.
How accurate is the refresh rate?
It is estimated by counting animation frames for one second, so it lands within a frame or two of the real value: 60 Hz screens usually read 59–61. Browsers can throttle background tabs, so keep this tab in front while measuring, and note that variable-refresh displays report whatever they happen to be running at.