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 online. Check buttons, analog sticks, triggers, D-pad, and vibration, and detect stick drift on Xbox, PlayStation, and Switch Pro pads.
Check which Web APIs your browser supports. Scans 105 features across storage, graphics, audio, network, sensors, hardware, and more.
Generate and parse User Agent strings for any browser, OS, and device. Built for developers, QA testers, and SEO work, with bulk generation and side-by-side comparison.
See what browser, device, OS, and system settings you are using. Reads your User Agent, screen, GPU, and hardware locally, with a built-in UA parser and JSON export.
Run a touch screen test in your browser to find dead zones, check multi-touch support, and gauge accuracy. Grid mode for full coverage, draw mode for tracking.
Test your display in the browser with 12 categories of full-screen patterns: find dead pixels, check uniformity and gamma, spot banding and ghosting, and try the burn-in fix.
Test your laptop touchpad in the browser - check taps, clicks, scroll, pinch and multi-touch gestures, find dead zones, and measure its size in real time.
Test your monitor's refresh rate with visual animations. Compare simulated Hz against your native rate and spot frame drops instantly.
Calculate a display's physical width, height, and pixel density (PPI) from its diagonal size and resolution, then compare monitors, laptops, tablets, and phones side by side.
Find out your screen resolution and viewport size instantly. See pixel ratio, color depth, aspect ratio, and the matching CSS breakpoint.
Test your microphone online with a real-time waveform and volume meter. Record up to 10 seconds and play it back to hear yourself before calls or recordings.