Hardware Tools
Hardware diagnostics — keyboard and key rollover tester, dead pixel and screen checker, GPU benchmark and stress test, speaker and audio frequency test.
Input Device Testing
Gamepad Tester — Test Controller Buttons, Sticks Online
Test Xbox, PS5, PS4, or Switch controllers in any browser. Real-time button response, analog stick drift detection, trigger pressure, and D-pad validation.
Keyboard Tester — Check Keys, NKRO & Chatter Online
Detect dead keys, check N-key rollover, identify chatter, and practice typing speed. Real-time chord display with adjustable threshold. Works with all keyboards
Mouse Tester — Test Double Click, Buttons & Scroll Free
Test all mouse buttons with real-time visual feedback. Check double-click issues, measure CPS, test scroll precision, and view click event logs.
Display Testing
Dead Pixel Test — Free Check Monitor & Screen Defects
Test monitors, laptops, phones, and tablets for dead pixels. Display full-screen solid colors to detect stuck pixels and screen defects. 100% private.
PPI Calculator — Calculate Screen Pixel Density & DPI
Compute pixel density for any display using resolution and diagonal size. Calculate PPI, megapixels, and aspect ratio. Includes common device presets.
Refresh Rate Test — Free UFO Hz Check & Monitor FPS Accuracy
Check your monitor's actual refresh rate using requestAnimationFrame. Detects frame skipping with UFO motion test. Shows resolution, DPI, and HDR info.
Screen Color Test — Monitor Gradient, Gamma Checker
Test color gradients for banding, check brightness uniformity, calibrate gamma, and compare colors side by side. Works on all monitors and phones.
Output Device Testing
Microphone Test — Check Mic Online with Audio Level Meter
Test your microphone with a real-time audio level meter. Verify mic input, detect clipping, check volume level. All audio stays in your browser — zero upload.
Speaker & Headphone Test — Check Left & Right Channels Free
Test speakers and headphones — left/right check, frequency generator, tone sweep, pink noise. Verify stereo balance and diagnose issues. No download needed.
Webcam Test — Check Camera Online with Video Preview
Test your webcam with live preview, FPS counter, and resolution info. Check camera before calls. Test brightness, focus, color. All data stays local.
Hardware Specs & Benchmarks
CPU Benchmark 2026 — Free Compare 1000+ Processors
CPU benchmark chart updated June 2026. Compare 1000+ Intel and AMD processors with single-core and multi-core scores, specs, architecture, and TDP.
Device Info — Check Browser, OS, GPU & Hardware Specs
Check browser name, version, OS, CPU cores, RAM, GPU model, screen resolution, network type, and battery status. Works on all platforms.
GPU Benchmark 2026 — Free Compare Desktop & Mobile GPU
GPU benchmark hierarchy updated June 2026. Compare 600+ NVIDIA, AMD, and Intel graphics cards by 3DMark Time Spy scores and full specifications.