裝置工具 Hub

All-in-one device snapshot plus focused checkers 用於 your browser, user agent, timezone, pixel ratio, 和 viewport — all read 本機.

All-in-one snapshot of your browser, screen, OS, hardware, locale, network, 和 preferences.

Instantly detect your browser name, version, engine, OS, 和 full user agent — read 本機 在瀏覽器中.

See your full user agent string 和 a parsed breakdown of browser, engine, 和 OS — copy it in one click.

偵測 your current IANA timezone, UTC offset, 和 live local time 從 your browser, no IP lookup needed.

See which browser 和 version you are using right now — detected 本機 和 engine, OS, 和 device type.

檢查 your Google Chrome version 即時 — 或 see which Chromium-based browser you are on instead.

See your monitor screen resolution in pixels, plus available area, physical pixels, 和 orientation.

See your live browser viewport width 和 height in CSS pixels — updates as you resize the window.

See your device pixel ratio (DPR) live 和 CSS vs physical resolution — Retina 和 HiDPI check.

偵測 your device vendor, model, 和 type 從 your browser — phone, tablet, 或 desktop.

Find your phone model 從 user agent 和 Client Hints — 或 see if you are on desktop instead.

See your OS name 和 version 即時 — Windows, macOS, iOS, Android, Linux, 和 more.

偵測 CPU architecture (x86_64, arm64, 和 more) 和 bitness 從 Client Hints 和 user agent.

Find out whether you are on mobile, tablet, 或 desktop — 從 user agent, touch, 和 screen signals.

See a coarse browser fingerprint ID 和 entropy signals 用於 this tab — computed 本機, never uploaded.

檢查 camera, microphone, geolocation, 和 other Permissions API states 用於 this site.

檢查 if your browser 和 connection are online 和 navigator.onLine 和 a reachability probe.

Heuristic VPN 和 proxy check — compare public IPs 和 ISP names 用於 tunnel signs.

See whether your connection uses IPv6 或 is IPv4-only — HTTP 和 WebRTC checks.

測試 if cookies are disabled 或 blocked 用於 this site — cookieEnabled 和 write probe.

Confirm JavaScript is running in this tab — this page requires JS 到 load.

偵測 likely ad blocker extensions via common filter-list bait elements.

檢查 用於 carrier-grade NAT (100.64.x.x) signs in WebRTC 和 public IP data.

Heuristic private/incognito detection: Chromium file-system probe 和 IndexedDB hints.

檢查 your device pixel ratio (DPR) live, plus CSS vs physical resolution — confirm Retina/HiDPI scaling.

See your live browser viewport width 和 height, window size, 和 DPR — updates 即時 as you resize.

Website-side detection demos: browser, device, OS, bots, AI crawlers, ad blockers, VPN, proxy, 和 WebRTC leaks — all 從 your tab.

See whether websites can detect your browser 和 version 從 user agent 和 Client Hints.

See what device type, model hints, 和 screen signals sites can read 從 your browser.

See whether sites can detect your operating system 從 UA strings 和 Client Hints.

檢查 if automation flags (webdriver, headless UA) make your tab look like a bot 到 websites.

See if your user agent matches known AI crawler bots — 或 looks like a normal browser.

測試 whether sites can detect an ad blocker via common filter-list bait elements.

See if VPN 或 tunnel use is likely detectable 從 public IP, ISP name, 和 WebRTC.

See if proxy, Tor, 或 datacenter egress is likely detectable 從 IP 和 ISP signals.

See if WebRTC can expose public, local, 或 IPv6 addresses that sites could harvest.

Browser, canvas, WebGL, audio, 和 device fingerprint probes — hashed 本機 so you can audit tracking surface.

Hash UA, locale, timezone, 和 plugin signals 為 a browser fingerprint ID — computed 本機.

Canvas rendering probe 和 SHA-256 hash — see how sites fingerprint GPU 和 font rendering.

WebGL vendor, renderer, limits, 和 extension hash — GPU fingerprint signals in your tab.

OfflineAudioContext oscillator probe — audio processing differences used in fingerprinting.

Screen, viewport, touch, 和 hardware hints hashed 為 a device fingerprint ID.

Multi-threaded Web Worker SHA-256 load test — ops/sec totals, per-thread bars, 和 thermal throttle hints 在瀏覽器中.

WebGL2 Mandelbrot fragment shader benchmark — live FPS, min FPS, GPU vendor/renderer, 和 software-rendering detection 在瀏覽器中.

WebGPU, WebGL2, 和 WebNN readiness check 和 matrix-compute benchmark 和 software-rendering detection 用於 browser AI workloads.

Browser heap monitor 和 performance.memory stats, stress allocation in MB chunks, growth chart, 和 safe auto-abort before OOM.

轉換 CAS latency 和 MT/s 到 nanoseconds — compare DDR4 vs DDR5 kits, bandwidth estimate, 和 reverse CL 從 a target latency.

轉換 file size 和 link speed (Mbps/Gbps) 到 transfer time — 或 solve 用於 size 或 required speed. Binary sizes, decimal bit rates.

Keyboard tester, typing benchmarks, chatter detection, shortcuts, 和 input diagnostics 在瀏覽器中.

Visual keyboard tester 和 key history, press counts, 和 lock indicators.

測試 Arabic keyboard layout labels 和 key response in RTL view.

Measure WPM 和 accuracy 和 timed passages (30s, 1m, 或 2m).

Keystroke dwell, flight time, bigram heatmap, 和 consistency score.

Classify switch sound as linear, tactile, 或 clicky via microphone FFT.

Find keys that double-register within a configurable threshold.

Estimate Hz 從 OS auto-repeat timing while holding a key.

Press a combo 到 see what it does on Windows, macOS, 和 Linux.

Count spacebar presses in 5, 10, 或 30 seconds.

Estimate key press event delay 和 live MS samples.

Measure initial repeat delay 和 repeat rate in Hz.

Button tests, CPS benchmarks, polling estimate, LOD drift, aim trainer, DPI 和 eDPI math — all 本機 在瀏覽器中.

See left, middle, right, 和 scroll events 和 live press state.

Timed left-click CPS benchmark 和 peak rate 和 local best score.

Watch live pointer travel 和 speed as you move inside the test pad.

Emoji trail playground — move the pointer 到 paint 和 clear anytime.

Flag suspicious double-fires 從 a single intentional click per button.

Estimate Hz 從 mousemove timing 在瀏覽器中 (start/stop/restart).

Lift 和 re-enter the tracking area five times 到 average cursor drift.

Timed aim trainer: random targets, hits, misses, error, 和 reaction time.

Burst-friendly CPS 和 drag across the button 和 a per-second bar graph.

Right-button clicks per second 和 context menu suppressed in the arena.

Measure DPI 從 pointer travel plus keep eDPI while changing DPI.

Compute effective DPI 和 cm/360 從 DPI, in-game sens, 和 yaw.

Sample pointer jitter 和 your hand off the mouse 用於 several seconds.

比较 slow vs fast drags of the same distance 到 spot OS acceleration.

Spin around a center dot 和 count full rotations 和 peak spins/sec.

Screen fills, gamma 和 black/white ramps, touch mapping, PWM lab, ghosting demos, 和 a refresh-timing probe — all 本機 在瀏覽器中.

Solid colors, dot grid, 和 fullscreen fills 用於 dead-pixel 和 uniformity checks.

Estimate animation frame cadence versus display refresh timing in-browser.

Swatches plus grayscale ladders 到 judge tint 和 near-black clipping.

Near-black fullscreen ramps 到 visualize edge glow on IPS 和 edge-lit LCDs.

Draw tap markers inside the arena 到 sanity-check mapping across the panel.

Measure live touch force 和 detect graded pressure on touchscreens 和 styluses.

Track simultaneous touch points 到 check multi-touch 和 palm rejection.

Tap when the panel turns green 到 gauge touch response 和 input latency.

Simulated fullscreen brightness toggling across adjustable duty 和 frequency.

Striped ramps 和 stepped grays highlight nonlinear gamma 和 sharpening halos.

Watch the moving box. If you see a trailing blur 或 color smear behind it, your monitor has ghosting (slow pixel response). Increase speed 到 expose ghosting more clearly.

Free online black level test. 檢查 whether your monitor crushes shadow detail 和 32 near-black patches. 偵測 incorrect black-level mapping 和 gamma issues.

Free online white level test. 檢查 whether your monitor clips highlights 和 32 near-white patches. 偵測 crushed whites 和 incorrect contrast settings.

Free online monitor brightness test. Eleven grayscale steps 從 black 到 white reveal brightness, contrast, 和 gamma issues.

Checkerboard beside 50% gray—squint 到 see if averaged checker matches solid mid gray 用於 contrast sanity.

Pixels per inch, dot pitch, megapixels, 和 aspect ratio 從 resolution plus diagonal.

Simplify pixel dimensions 到 ratios (用於 example 3840×2160 到 16:9).

轉換 diagonal 和 aspect ratio 為 physical width 和 height in inches 和 centimeters.

Rule-of-thumb seating distance 從 screen diagonal plus optional multiplier presets.

Measured animation FPS 從 requestAnimationFrame timing 用於 qualitative render cadence.

Browser-reported viewport, screen geometry, pixel ratio, 和 color depth diagnostics.

Cycle solid colors plus checker overlays fullscreen 到 spotlight uneven wear 或 risky static UI.

Near-black / near-white ladders 和 ramps 到 sniff limited HDMI (16–235) vs full RGB.

Side-by-side sRGB, Display P3, 和 Rec. 2020 patches 到 judge wide-gamut rendering on your monitor.

Fullscreen reference fills across gray/black/white 和 primaries 到 inspect clouding 和 tint.

Sample animation-frame spacing 和 highlight intervals much longer than the median streak.

Lagom-inspired 1px stripes, grille patterns, 和 text blocks 到 gauge scaling 和 sharpening.

Webcam preview 和 mirror utilities that run 在瀏覽器中 — no upload, no server-side recording.

Live camera preview 和 resolution, aspect, 和 FPS readouts; grab PNG snapshots 本機.

Mirrored preview 和 brightness/contrast, rule-of-thirds grid, snapshot download, 和 fullscreen — all in-browser.

Microphone level checks, relative dB meter, 和 Web Audio speaker tests including sweeps 和 bass tones — all 本機 在瀏覽器中.

Live microphone level meter 和 peak readout via Web Audio—no recording 或 upload.

Stereo tones, sweep, balance demo, pink noise visualization, 和 quick L/R/Both playback checks in-browser.

Relative dB SPL style readout 從 the mic 和 rolling average—browser-only comparison aid.

Left / right / both / ping‑pong channel check plus logarithmic sweep 從 100 Hz 到 10 kHz.

Sine presets 和 sweeps 從 20 Hz–200 Hz 到 stress subwoofers, monitors, 或 bass‑capable headphones.

Log-scale 20 Hz–20 kHz sweep 和 hearing-limit markers, manual tone hold, 和 estimated age ceiling readout.

React 到 a random-delay 880 Hz beep; tracks last, average, best, 和 worst over five rounds 和 false-start detection.

Walk tones through 5.1 或 7.1 channels (或 stereo pan fallback) 到 verify speaker wiring 和 OS channel mapping.

Live mic autocorrelation tuner: Hz, note, octave, cents, 10 s pitch graph, 和 2 s hold-peak 用於 vocals 或 instruments.

12-step mosquito-tone screening 從 8–20 kHz plus manual 8–22 kHz slider 到 estimate high-frequency hearing age.