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🖥️ Device Tests

Mic test, dead pixel test, screen resolution & DPI, keyboard test, metronome and clocks.

Mic TestCheck your microphone with a live meterDevice TestsDead Pixel TestFull-screen colours to spot dead/stuck pixelsDevice TestsScreen Resolution & DPIWhat is my screen resolution, DPI, pixel ratioDevice TestsKeyboard TestCheck every key on your keyboardDevice TestsOnline Metronome20–300 BPM with time signaturesDevice TestsDigital ClockBig full-screen clock with dateDevice TestsJaap CounterTap counter for mantra jaap, with 108 mala countDevice TestsStopwatch & TimerOnline stopwatch with laps and countdown timerDevice Tests

Test your device in seconds

Check that your mic works before an interview, find dead pixels on a new monitor, see your exact screen resolution and DPI, test every key after a spill, or use the metronome for riyaz. Nothing is recorded or uploaded.

Check your hardware in a minute

Before an interview call, run the mic test and hear a 5-second playback. Unboxing a phone or monitor? The dead-pixel test cycles through solid colours so you can spot stuck or dead pixels within the return window. The screen-resolution page reports your exact pixels, DPI and viewport — useful when a form or a designer asks. The keyboard test lights up every key you press (a spill-check for laptops), the metronome keeps riyaz on beat, the stopwatch and timer handle labs and workouts, the jaap counter counts a 108-mala, and the digital clock shows IST to the second.

Permissions and privacy

The mic test asks for microphone permission and processes audio locally — the level meter and the playback clip never leave your device, and the clip is discarded when you leave the page. No other device test needs any permission.

Frequently asked questions

The mic meter doesn't move — what now?

Allow the microphone from the padlock icon in the address bar, pick the right input device in system sound settings, and close apps like Zoom that may be using the mic.

Can a stuck pixel be fixed?

Sometimes — gentle massage through a cloth or flashing colours for 10–20 minutes revives some stuck pixels; dead (black) pixels cannot be repaired.

Does the clock show the exact IST?

It shows your device's clock in Asia/Kolkata time; keep automatic time enabled on your phone for accuracy.