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Microphone Browser

Pick a microphone from the live list to open the full recorder and spectrogram view.

Microphone Test

Drag to scrub audio
? See every microphone on your device with a live level meter and waveform, then open any mic in the recorder and spectrogram. Click for more.

Camera Test

? See every connected camera at once, check each feed's resolution, and find camera hardware, driver, or permission issues. Click for more.

Mouse Test

Delta Movement
Click Test
L: 0 R: 0 Scroll: 0 (0/s)
Cursor Position
? Check left and right clicks, scroll wheel direction and speed, and cursor movement to find double-clicking, lag, or tracking problems. Click for more.

Sound Output Test

? Check left and right speakers, play tones from 20 to 2000 Hz, pick an output device, and measure speaker-to-microphone latency. Click for more.

Keyboard Test

? Press each key to see it light up on a virtual keyboard and find dead, sticky, or wrongly mapped keys and rollover limits. Click for more.

Touch Test

Multi-touch supported
? Draw with one or more fingers to find dead spots, ghost touches, and multi-touch problems on phones, tablets, and laptops. Click for more.

Ping Test

Current: --ms, Avg: --ms, Min: --ms, Max: --ms Pings: 0
? Measure live latency between your browser and our server with a running chart of current, average, minimum, and maximum ping. Click for more.

Local IP Discovery

? See the private network addresses your device uses, with the type of each address and one-click copy. Click for more.

Battery Status

? See your battery level and charging state live, with time remaining, a trend chart, and an estimate of full battery life. Click for more.

GPU Stress Test

Graphics: Detecting...

0 Score so far
Starting...

Speed over time (billion operations per second)

? Load your graphics card with a WebGPU compute workload and watch live throughput to spot overheating, throttling, or crashes. Click for more.

CPU Stress Test

Processor: Detecting...

0 Score so far
Starting...

Speed over time (points per second)

? Load every processor thread with intensive calculations and watch a live score chart to check stability, cooling, and throttling. Click for more.

Dead Pixel Test

? Fill your screen with solid red, green, and blue to find dead, stuck, or lit pixels on any monitor, laptop, phone, or tablet. Click for more.

Display & Viewport

Window Size ...
Screen Resolution ...
Screen Aspect Ratio ...
Available Space ...
Pixel Ratio (DPI) ...
Color Depth ...
Orientation ...

Hardware

CPU Cores (Logical) ...
RAM (Approx GB) ...
Platform ...
GPU Renderer Detecting...
GPU Vendor Detecting...
? See your screen resolution, scaling, color depth, CPU threads, approximate memory, and graphics card as reported by your browser. Click for more.

GPS Test

Shows your location, how accurate it is, and which way your device is facing.

Your location stays on this device; nothing is sent to our server.

-- Looking for a compass...
LatitudeLocating...
LongitudeLocating...
Accuracy
--
Likely source
--
Altitude
--
Altitude accuracy
--
Speed
--
Direction of travel
--
Updates
0
Last update
--
Open map
? See your latitude, longitude and location accuracy, with a live compass heading, altitude and speed, right in your browser. Click for more.

Gyroscope Test

Shows how fast your device is turning around each axis, live, with a phone that tilts along with yours.

X tilt forward / back0 °/s
Y tilt left / right0 °/s
Z spin flat0 °/s
Rotation speed (degrees per second, last 10 seconds)
Fastest turn
0 °/s
Readings per second
--
At rest (noise)
--
? See your phone or tablet's rotation speed on all three axes live, with a 3D view, a 10-second chart and a noise check. Click for more.

Accelerometer Test

Shows the force on your device along each axis, how many g it feels, and a bubble level for checking tilt.

1.00 g
X left / right0.0
Y up / down the screen0.0
Z through the screen0.0
Force (m/s², including gravity, last 10 seconds)
Tilt
--
Peak force
--
Movement (no gravity)
--
Readings per second
--
? See the force on each axis of your phone or tablet live, in m/s² and g, with a bubble level and a 10-second chart. Click for more.

Multiple Monitor Test

Checking...
? See every connected display with its name, native resolution, scaling and color depth, and how they are laid out. Click for more.