Browser & Device Tools
Comprehensive testing tools for web developers and QA professionals. View detailed browser, device, OS and system information, detect supported Web APIs and browser features, test keyboards for broken keys, ghosting and rollover, test microphones with real-time audio visualization, run 12 professional monitor tests including dead pixels, gamma and burn-in fix, test mouse buttons, scroll wheel, CPS and drag-and-drop, check screen refresh rate, resolution, viewport size, pixel ratio and color depth, calculate physical screen dimensions and PPI, test speakers with stereo channel tests and frequency sweeps, test touchscreens and touchpads for dead zones and multi-touch, generate and parse User Agent strings, test webcam quality, and test gamepad buttons, joysticks, triggers and vibration.
See in real time when your window has focus, loses focus, or its tab is hidden, with live timers, counters and a full event log.
Test your game controller buttons, joysticks, triggers, D-pad, and vibration. Supports Xbox, PlayStation, Switch Pro, and standard controllers.
Check which Web APIs and features your browser supports. Scan 100+ features across storage, graphics, audio, network, sensors, and more.
Generate and analyze User Agent strings for any browser, OS, and device. Perfect for developers, testers, and SEO professionals.
View detailed information about your browser, device, operating system, and system settings. Includes User Agent parser, string analyzer, and advanced hardware detection.
Test your touchscreen for dead zones, multi-touch support, and responsiveness. Draw mode for accuracy testing, grid mode for systematic coverage.
Test, calibrate, and fix your display with 12 professional tools: Dead Pixels, Master Pattern, SMPTE Bars, Gamma, Response Time, Burn-in Fix, and more.
Test your laptop touchpad functionality - detect taps, gestures, multi-touch, and pointer tracking in real-time.
Test your monitor's refresh rate with visual animations. Compare 30Hz, 60Hz, 120Hz side by side and detect frame drops instantly.
Calculate physical screen dimensions, pixel density (PPI), and compare different monitors, laptops, tablets, and phones by diagonal size and resolution.
Check your screen resolution, browser viewport size, device pixel ratio, color depth, and aspect ratio. Compare with common resolutions instantly.
Test your microphone with real-time audio visualization. Check volume levels, record audio, and verify mic quality before calls or recordings.