Device Testing Tools

Screen, touch, cameras, microphone, speakers, vibration, sensors and battery — one at a time, with a report at the end

Detect fake USB drives and verify real capacity — like h2testw, but in your browser.

Water eject at 165 Hz, a dust sweep, and a microphone check that tells you whether the sound actually changed.

Test your speakers, headphones, or surround system right in the browser.

Check if your microphone works — test volume, sensitivity, noise floor, and audio quality in the browser.

Test your microphone for noise, identify the problem type, and get step-by-step fix instructions.

Test your device vibration motor with patterns, diagnostics, and a custom builder.

Test your subwoofer with tone generator, frequency sweeps, bass drops, diagnostics, and room mode calculator.

Measure your monitor refresh rate with precision frame timing. Detect Hz, analyze jitter, explore display capabilities, and test motion smoothness — all in your browser.

Free online battery checker.

Check your screen for dead, stuck, and hot pixels with 21 test patterns and built-in repair tool

Check your phone screen for dead pixels, touch issues, backlight bleed, burn-in, and color accuracy.

Test your webcam for resolution, FPS, sharpness, noise, lighting, and color accuracy.

Test every key, detect ghosting, measure latency and typing speed

Type a phrase and we verify the output — catching autocorrect, missing letters and lag

Test your phone's gyroscope, accelerometer, and motion sensors. 3D visualization, spirit level, graphs, accuracy test, CSV export.

Test any Bluetooth audio device: headphones, speakers, earbuds, car audio. Measure latency, check speaker channels, test mic quality.

Check your printer in seconds with Quick Test or run detailed diagnostics with Professional mode. Color bars, nozzle check, grayscale, text sharpness, and more.

Measure your clicks per second with multiple modes and timers

Test your OLED or LCD screen for burn-in and image retention with fullscreen solid colors and burn-in pattern overlays.

Test every mouse button, scroll wheel, and drag tracking

Test multitouch, dead zones, ghost touches, latency and pressure sensitivity on any touchscreen device

Pressure, pressure steps, tilt, twist, pen buttons, report rate and latency — with the cause explained, not just numbers

Measure your typing speed in words per minute with real-time accuracy tracking

Check color accuracy, gamma, contrast, and gradients — all in the browser

Test your controller buttons, sticks, triggers and vibration online

Move the cursor over the test area — the polling rate appears within a second.

WebGL-based GPU benchmark that tests particles, 3D geometry, and shaders. Produces a score from 0 to 10,000. Includes stress test mode.

Test your processor speed with single-thread and multi-thread benchmarks

HDR detection, visual tests, diagnostics & scoring

Check stereo vision, motion sickness risk, IPD and find the VR headset that fits you before you buy

WebXR diagnostic suite for FOV, tracking, refresh rate, spatial audio and display dead pixels — runs inside your headset browser

Check WebXR support, GPU, CPU, RAM, sensors and bandwidth — then see which VR headsets match your hardware

Get a 0–100 score for your phone in 10 seconds — CPU, GPU, RAM, display, network, and health.

Check which audio and video codecs your browser supports — H.264, H.265, AV1, VP9, Opus, AAC, FLAC. Free, in your browser.