Device & Browser Tests
Diagnose and benchmark your computer hardware, peripherals, and browser capabilities directly in your web browser. Test keyboard keys, mouse buttons, microphone input, webcam feeds, display pixels, and typing speed with zero software downloads or system permissions required beyond standard browser APIs.
All Device Tests Tools (10)
Typing Test: Check WPM & Keystroke Accuracy
Benchmark your typing speed in words per minute (WPM), raw keystrokes, and accuracy with timed tests.
CPS Test: Click Speed Test (Clicks Per Second)
Measure mouse clicking speed in clicks per second across 1s, 5s, 10s, 30s, and 60s test durations.
Mic Test: Test Microphone Online & Check Audio Levels
Check microphone input levels, audio waveform spectrum, and sound clarity directly in your browser with zero recording uploads.
Reaction Time Test: Measure Visual Reflex Latency
Benchmark your visual reaction time in milliseconds using high-precision browser animation frame timers.
Keyboard Tester: Test Keyboard Keys Online Free
Check keyboard keys, test anti-ghosting rollover, and diagnose stuck or unresponsive switches with a live interactive virtual keyboard.
Webcam Test: Test Camera Online & Check Resolution
Check webcam video feeds, inspect actual hardware resolutions and frame rates, and capture test snapshots with zero cloud uploads.
Mouse Tester: Test Mouse Buttons, Scroll Wheel & Clicks
Inspect mouse buttons, scroll wheel encoders, side navigation buttons, and double-click actuation in an interactive testing canvas.
Dead Pixel Test: Check Screen for Stuck & Dead Pixels
Check monitors, laptops, and TV screens for dead, stuck, and hot pixels using full-screen solid primary color cycles.
Headphone Test: Check Left & Right Audio Channels Online
Check stereo headphone channel routing, left/right driver balance, and full frequency sweeps directly with the Web Audio API.
MAC Address Lookup: OUI Vendor & Hardware Checker
Identify network card manufacturer, OUI vendor, and MAC address casting scope.
Hardware & Input Diagnostics in Modern Browsers
Modern web browsers support standard hardware APIs—such as HTML5 Web Audio, MediaDevices getUserMedia, Gamepad, Screen and Pointer Events—enabling real-time hardware diagnostics without installing proprietary native software.
Toolzy's device and browser testing suite lets you verify peripheral functionality, latency, and multimedia streams locally. From checking key ghosting and mouse polling to evaluating microphone frequencies and dead pixels, all diagnostic processing is executed on-device.
Your privacy is guaranteed: camera feeds and microphone audio streams are processed strictly within temporary local browser memory, never recorded to disk, and never transmitted over the network.
Key Formulas & Mathematical Standards
Precision algorithms and verified standards powering our device & browser tests
Typing Speed: Words Per Minute (WPM)
Standard typographical definition assuming an average word length of 5 characters, normalized by elapsed duration.
Clicks Per Second (CPS)
Measures finger clicking speed and mouse microswitch responsiveness over a fixed interval.
Visual Reaction Time
High-resolution millisecond timestamp measured via performance.now() from stimulus render to user click.
Who Uses Our Device & Browser Tests?
Frequently Asked Questions
Common questions about using our device & browser tests
Do I need to install any software or browser extensions to run these tests?▼
No. All tests use standard, built-in W3C browser APIs (HTML5 Canvas, Web Audio API, MediaDevices API, Pointer Events). They run instantly in any modern web browser without plugins or downloads.
Is my webcam video or microphone audio recorded or uploaded?▼
Never. Camera video and microphone audio remain strictly inside your browser's local memory for real-time visualization and playback. Nothing is saved, recorded to a server, or sent across the internet.
Why does the browser ask for permission for camera and microphone?▼
Modern browsers enforce strict privacy security. The site requests permission only after you click 'Start Test', and the stream is immediately terminated when you stop the test or leave the page.
How accurate is the typing test WPM calculation?▼
The typing test uses high-precision performance.now() timestamps and standard typographical accounting: (correct keystrokes / 5) divided by elapsed minutes, alongside raw WPM and net accuracy percentage.
Can these tests diagnose faulty hardware?▼
Yes. The keyboard tester identifies dead switches or ghosting issues, the mouse tester verifies button clicks and scroll directions, and the dead pixel test cycles pure color screens to reveal stuck subpixels.
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