Test every device in your setup
Fast, free, and online
Professional-grade checks for screens, keyboards, mice, audio, and controllers. Runs directly in your browser.
Available Tools
Start testing right away with our most popular hardware checks.
Dead Pixel Tester
Test your monitor for dead pixels, stuck pixels, and screen uniformity with our professional color testing tool.
- *10 color test modes (Black, White, RGB, CMY, Grays)
- *Keyboard shortcuts (1-0 keys)
- *Full-screen testing mode
- *Auto-hiding controls for clear view
- *Mobile-friendly interface
Mouse Polling Rate Test
Measure mouse polling rate (browser event Hz) with distribution, median, peak, and stability checks.
- *10s / 30s sampling modes
- *Distribution chart + sample counts
- *Median / P95 / peak Hz metrics
- *Stability score and quality warnings
- *Browser-based, privacy-first
Click Speed Test (CPS/CPM)
Measure your click speed with 10s/30s/60s timers. Track CPS/CPM, left/right clicks, and share results.
- *10s / 30s / 60s timer modes
- *CPS and CPM scoring
- *Left/right click tracking
- *Noise filtering for duplicate clicks
- *Shareable results link
Gamepad Tester
Test your controller buttons and analog sticks, and check for stick drift with an adjustable deadzone.
- *Real-time button and stick visualization
- *Stick drift detection with deadzone slider
- *Controller device info and mapping hints
- *USB and Bluetooth support (varies by browser)
- *Privacy-first, browser-based
Keyboard Tester
Test every key on your keyboard to ensure all keys are working properly. Perfect for checking new or used keyboards.
- *Physical keyboard layouts (ANSI/ISO) with language keycaps
- *Real-time key press highlight and tested-state tracking
- *Shows recent combos (e.g. Ctrl + Alt + Del) and order
- *Sound feedback toggle and quick reset
- *Completion banner when all keys in the layout are tested
Mouse Tester
Test left/right clicks and scroll wheel directions with instant visual feedback and scoring.
- *Left and right click detection with highlights
- *Scroll wheel up/down verification
- *Pass/fail scoring with reset
- *Browser-based, no install
Audio Tester
Test your speakers, headphones, and microphone. Check left/right channels, frequency response, and audio quality.
- *Left/Right channel balance test
- *Frequency sweep (20Hz - 20kHz)
- *White noise and pink noise reference
- *Manual single-tone control with quick presets
- *Microphone level and peak meter
Coming Soon
More diagnostic tools are on the way.
Camera Tester
Test your webcam or camera. Check resolution, frame rate, color accuracy, and focus quality.
Why HardwareTest
Professional-grade
Designed for accurate, repeatable checks you can trust.
Privacy-first
All tests run locally in your browser.
Always improving
New tools and guides added regularly.
How Our Tests Work
Browser-based diagnostics powered by modern web APIs
Browser APIs
Our tests use standard web APIs like Gamepad API, Pointer Events, and Web Audio to directly access your hardware through your browser—no plugins or downloads required.
Local Processing
All data stays on your device. Test results are processed locally in your browser and never sent to our servers. Your privacy is guaranteed.
Instant Results
Get real-time feedback as you test. Our tools visualize inputs immediately so you can quickly identify any issues with your hardware.
What is Online Hardware Testing?
Online hardware testing allows you to verify that your computer peripherals work correctly using browser-based tools. You can check for dead pixels on your monitor, test keyboard key responses, verify mouse clicks and scroll wheels, measure click speed (CPS/CPM), and detect gamepad stick drift—all without downloading or installing any software.
Frequently Asked Questions
Common questions about our free hardware testing tools.
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