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Pick the device or browser capability you want to understand.
Private browser device testsTest Your Devices Online
Test Your Devices Online
before it
matters.
Fast, practical checks for your microphone, webcam, speakers, keyboard, mouse, display, controllers, and browser—no install, no sign-up, and local processing by default.
Ready when you areTests run locallyNo account required
Start with the signal
View all 31 tools Popular device checks
Audio
Microphone Test
See and hear whether your browser is receiving a useful microphone signal.
Audio
Speaker Test
Confirm audible output and verify left, right, and center channel routing.
Audio
Headphone Test
Check headphone channels, center image, basic phase, and low-frequency playback.
Camera
Webcam Test
Preview your camera and inspect the stream settings reported by the browser.
Camera
Pre-call Device Check
Walk through browser, microphone, webcam, and speaker checks before a call.
Keyboard & Mouse
Keyboard Test
See keydown and keyup events, pressed keys, locations, and tested codes.
Every part of the setup
Browse by signal
Move from device to answer without wading through a dashboard.
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Audio Tools
Check microphones, speakers, headphones, recording, tones, and subjective hearing range.
Camera Tools
Preview your webcam, inspect browser-reported stream settings, and prepare for a call.
Keyboard & Mouse Tools
Inspect keys, clicks, pointer events, timing estimates, typing, and input behavior.
Display Tools
Check pixels, refresh timing, motion clarity, color patterns, resolution, and PPI.
Controller & Touch Tools
Inspect gamepad buttons, axes, drift, vibration support, and multi-touch input.
Browser & Network Tools
Inspect browser capabilities and understand WebRTC or speed-test infrastructure requirements.
Guides
All guides Answers for the checks people run most
Use a focused guide when you need more than a pass or fail.
controller vibration test
6 min readController Vibration Not Working: Test Each Rumble Channel
Separate controller detection, browser haptics support and the effect you feel. Compare motor channels and USB or Bluetooth without assuming a hardware fault.
mouse double click test
6 min readMouse Double Clicking on a Single Click: A Repeatable Test
Use slow single presses and separate button histories to investigate unwanted double clicks. Understand timing thresholds, debounce limits and comparisons to try next.
keyboard chatter test online
6 min readKeyboard Typing Double Letters: Chatter or Held-Key Repeat?
Test one key at a time, exclude held-key repeat and compare suspicious event intervals with your intended presses before changing firmware or replacing a switch.
webrtc camera test
8 min readWebRTC Camera Test: Preview, Permissions and Next Steps
Start with live camera preview and permission troubleshooting, then check local media and understand what local ICE gathering cannot prove.
Private by designYour data
Your data
stays here.
No sign-up. No upload. No guesswork.
01
Runs in your browser
Audio, video, and input are processed in the active session.
02
Nothing leaves by default
Tests do not silently collect, store, or share device media.
03
You stay in control
Permission, start, stop, and reset controls remain visible.
Simple. Fast. Private.
From question to next step
Run the test
Start only when you are ready and watch clear feedback in real time.
Fix with confidence
Use measured results, honest limits, and practical next steps.
Ready when you are
