DEVICECHECKUPREPAIR LABOPEN THE BENCH
DEVICECHECKUP / TOOLS

The testing bench.

Run 42 practical browser-based device tests, from webcam and audio to display, keyboard, touch and network checks.

42 entries

Sound & microphone

8 TESTS
Microphone TestCheck microphone input with a live sound level meter and permission feedback.Speaker TestPlay a short left/right audio signal and confirm that speakers work.Headphone Left Right TestIdentify stereo channels using local test tones.Microphone Recorder & Playback TestRecord a short microphone sample and play it locally without uploading audio.Microphone Device SelectorList microphones the browser exposes after permission and identify your intended input.Audio Frequency Tone GeneratorPlay a gentle user-controlled tone in the browser across a limited audible range.Stereo Balance TestAdjust a local test tone between left and right stereo output channels.Audio Output Device ListInspect the speaker and headset output devices that the browser is permitted to enumerate.

Camera & video

3 TESTS
Webcam TestPreview your camera and inspect video dimensions without uploading video.Webcam Resolution TestSee the actual dimensions of a live webcam stream and inspect supported track capabilities.Webcam FPS TestEstimate the rate at which new webcam video frames reach the browser.

Keyboard & typing

3 TESTS
Keyboard TesterSee keys light up as you press them in your keyboard.Keyboard Rollover TestCount simultaneously held keys and identify key combinations that reach the browser.Typing Speed TestTime a short sample to estimate typing speed and accuracy.

Mouse & trackpad

4 TESTS
Mouse TesterCheck buttons, scroll wheel, movement and double clicks.Mouse Double Click DetectorMonitor sequential mouse clicks and flag very rapid repeated clicks.Mouse Wheel Scroll TestObserve wheel direction and per-event deltas while you scroll.Mouse Movement TrackerTrace pointer movement and measure travel distance within a canvas.

Display & pixels

7 TESTS
Dead Pixel TestDisplay full-screen solid colors to inspect pixels.Screen Color TestCheck solid screen colors and gradients.Refresh Rate TestEstimate screen refresh frequency using animation frames.Screen Gradient TestInspect grayscale and color gradients for banding or unusual transitions.Screen Contrast & Gray Levels TestShow dark and light grayscale steps for basic contrast inspection.Screen Motion Smoothness TestObserve an animated moving target and browser frame cadence.Viewport & Screen Size TestInspect browser viewport, screen values and device pixel ratio.

Touch & gestures

3 TESTS
Touchscreen TestDraw with fingers to check touch responsiveness.Multi-Touch TestCount simultaneous touch pointers on supported screens.Touch Accuracy TestTap targets to estimate browser-observed touch offset at different screen positions.

Browser & permissions

6 TESTS
Browser Capability TestCheck supported browser APIs and secure-context status.WebRTC Support TestCheck whether WebRTC peer connections are available.Clipboard TestTest copying and reading with browser permission.Browser Storage TestCheck whether local storage is writable without sending data.Browser Permissions TestInspect permission states for camera, microphone, geolocation and notifications where exposed.IndexedDB Storage TestVerify local IndexedDB open, read, write and cleanup behavior.

Sensors & location

5 TESTS
GPS and Location TestCheck geolocation permissions and approximate browser-provided accuracy.Device Motion TestCheck available motion and orientation signals.Vibration TestTrigger a short vibration on supported devices.Device Orientation TestDisplay orientation angle changes where browser sensors are available.Battery API Availability TestRead battery level and charging state only when the browser exposes the Battery Status API.

Network & internet

2 TESTS
Connection TestCheck browser network status and measure same-origin request latency.Connection Stability TestMeasure several same-origin request round trips and show variability.

Gaming & controllers

1 TESTS
Gamepad TesterInspect connected gamepad buttons and axes.