Browser diagnostics
Test your devices directly in the browser.
Choose a test, then follow its instructions to inspect your device.
🔒 Local-first◌ 54 tests◎ 20 languages
Browser diagnostics● Ready
⌨Keyboard6 tests↖Mouse7 tests🎮Gamepad7 tests▣Display9 tests◉Audio7 tests◫Webcam3 tests☝Touchscreen2 tests◈System & Browser6 tests⌁Connectivity & Hardware APIs7 tests
Core tests are processed locally in your browser. Camera and microphone streams are not intentionally uploaded by Testvexa.
01
9Categories
Keyboard
Keys, rollover and ghosting.
Mouse
Buttons, clicks, wheel and polling.
Gamepad
Buttons, sticks, drift and deadzone.
Display
Pixels, refresh rate and resolution.
Audio
Microphone, speakers and stereo channels.
Webcam
Camera preview, resolution and frame rate.
Touchscreen
Touch points, gestures and multi-touch.
System & Browser
Browser, device, GPU and feature diagnostics.
Connectivity & Hardware APIs
Bluetooth, HID, USB, Serial, MIDI and permission capability checks.
02
54All tests
Keyboard Test
→Press keys and verify that your browser receives every input.
Keyboard Ghosting Test
→Hold several keys at once and inspect simultaneous input.
N-Key Rollover Test
→Measure how many keys can remain registered at the same time.
Mouse Test
→Check buttons, movement and wheel events in real time.
Double Click Test
→Check accidental double clicks and click timing.
CPS Test
→Measure clicks per second over a five-second run.
Mouse Polling Rate Test
→Estimate pointer event frequency in hertz.
Scroll Wheel Test
→Verify wheel direction and event count.
Gamepad Test
→Inspect connected controller buttons and axes.
Stick Drift Test
→Watch analog stick center offset and movement live.
Controller Deadzone Test
→Estimate stick distance from center and suggested deadzone.
Dead Pixel Test
→Cycle full-screen solid colors to spot dead or stuck pixels.
Refresh Rate Test
→Estimate your display refresh rate with animation frames.
Screen Resolution Test
→See CSS resolution, pixel ratio and viewport size.
Microphone Test
→Check whether your microphone works and watch the live input level.
Microphone Volume Test
→Measure the relative microphone input level in your browser.
Speaker Test
→Play a reference tone to verify audio output.
Left / Right Speaker Test
→Play separate left and right channel tones to verify stereo routing.
Webcam Test
→Preview your camera feed directly in the browser.
Webcam Resolution Test
→Detect the active camera stream resolution.
Webcam FPS Test
→Estimate the camera stream frame rate when the browser exposes it.
Touchscreen Test
→Check touch coordinates and verify that touches are detected.
Multi-Touch Test
→See how many simultaneous touch points your browser reports.
Controller Button Test
→Inspect every controller button, value and pressed state.
Controller Trigger Test
→Measure analog left and right trigger travel from 0 to 100%.
Analog Stick Circularity Test
→Trace stick movement around the edge and inspect axis circularity.
Multiple Controller Test
→See all gamepads currently exposed to your browser.
Color Depth Test
→Inspect browser-reported color and pixel depth.
Screen Orientation Test
→Watch orientation angle and viewport dimensions update live.
Screen Gradient Test
→Inspect smooth grayscale and color gradients for visible banding.
Browser Information
→View user agent, language, platform and browser capabilities.
Device Information
→Inspect screen, CPU concurrency, memory hints and touch support.
GPU / WebGL Test
→Detect WebGL support and inspect renderer information exposed by the browser.
WebGPU Test
→Check whether WebGPU is available and whether an adapter can be requested.
Browser Feature Test
→Check support for common modern web APIs in one place.
Browser Storage Test
→Check localStorage, IndexedDB and storage quota estimates.
Keyboard Repeat Rate Test
→Measure repeat event intervals while a key is held down.
Key Hold Test
→Measure how long a key remains held and inspect repeat events.
Keyboard Event Viewer
→Inspect key, code, repeat state and event timing live.
Mouse Drag Test
→Hold a button and verify continuous drag movement and distance.
Mouse Movement Test
→Measure pointer distance, speed and movement events.
Microphone Frequency Test
→Estimate the dominant input frequency using a live FFT.
Microphone Noise Level Test
→Watch relative RMS and peak input levels in a quiet environment.
Audio Frequency Test
→Play selectable reference tones from bass to treble.
Full Screen Test
→Check whether fullscreen mode works and inspect the active state.
Frame Timing Test
→Measure browser animation-frame timing, jitter and unusually long frames.
Display Motion Test
→Run a smooth moving target to visually inspect motion clarity and stutter.
Bluetooth Browser Test
→Check whether the browser exposes Web Bluetooth; no device failure is inferred.
WebHID Test
→Check whether the browser exposes the WebHID API.
WebUSB Test
→Check whether the browser exposes the WebUSB API.
Web Serial Test
→Check whether the browser exposes the Web Serial API.
Web MIDI Test
→Check Web MIDI support and list available MIDI inputs after permission.
Vibration Test
→Check Vibration API support and trigger a short vibration on compatible devices.
Browser Permissions Test
→Inspect browser permission states for common device capabilities.
No matching tests.