Professional Hardware Diagnostics

Free, browser-based diagnostic tools for your screen, mouse, keyboard, and audio. No downloads required.

Available Diagnostic Tools

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Dead Pixel Test

Identify stuck or dead pixels with full-screen color cycles.

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Burn-in Fixer

Reduce OLED/LCD image retention using rapid pattern cycling.

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Refresh Rate Test

Verify your monitor's actual refresh rate in Hz.

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Screen Ruler

Measure elements on your screen in pixels, cm, and inches.

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Speaker Cleaner

Eject dust and water using low-frequency sound pulses.

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Frequency Generator

Output pure sine tones from 20 Hz to 20,000 Hz.

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Microphone Test

Real-time input level check and playback verification.

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Stereo Test

Verify left and right audio channel balance and wiring.

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Keyboard Test

Check for broken keys, ghosting, and NKRO limits.

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Gamepad Test

Map stick precision and identify controller deadzone drift.

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Double Click Test

Detect faulty mouse switches causing accidental double clicks.

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Mouse Polling Rate

Measure your gaming mouse reporting frequency in Hz.

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CPS Test

Benchmark your clicking speed in Clicks Per Second.

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Reaction Time Test

Measure your visual human response speed in milliseconds.

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Webcam Test

Diagnostic sensor check for resolution and frame rate.

Free Online Hardware Diagnostic Tools

TestMyTech is a comprehensive, browser-based hardware diagnostics suite built for quick checks you can run instantly. Whether you want to test your laptop before an important meeting or verify a newly purchased gaming setup, our platform allows you to test common device behavior directly in your browser without installing any extra software.

Our goal is practical: to help you confirm whether a device is working normally. If something feels off—such as phantom double clicks, dead pixels on your new monitor, or low microphone input—you can use our tools to get a clear, immediate signal before digging into complicated system settings.

Test Your Display, Keyboard, Mouse, and Audio

The TestMyTech laboratory includes dedicated diagnostic tools across four main clusters: Display, Audio, Input, and Utility. Use our dead pixel test, keyboard test, microphone test, and webcam test tools to quickly evaluate your hardware's condition.

  • Display & Monitors: Use our online monitor tester to check for dead pixels, screen burn-in patterns, and verify your true refresh rate (Hz).
  • Input Devices: Run a complete keyboard test and mouse test. Check for N-Key Rollover (NKRO), ghosting, mouse double-clicking issues, and polling rates.
  • Audio & Video: Test your stereo channels, clean your speakers with high-frequency tones, and verify your microphone test and webcam test outputs.

Because our tools read standard web API signals, they generally work with all major hardware brands. You can test your Apple MacBook keyboard, verify your Asus or Dell gaming monitor, and check your Logitech or Razer peripherals all from one place.

100% Browser-Based: Safe, Secure, and Private

Most TestMyTech tools run directly in your browser using standard, hardware-accelerated web APIs. This means the diagnostics happen locally on your device. We do not require any downloads, and we do not store your data. Tools that require permissions—like the webcam test or microphone test—will only ask for local browser access and will never transmit your audio or video to our servers.

Why Use Online Diagnostics for Troubleshooting?

A lot of hardware issues are small but highly disruptive: a keyboard key not registering, a mouse failing a drag-and-drop, or a monitor stuck at 60Hz. A browser-based hardware test is the perfect first step. If your hardware fails the test here, the issue is likely at the driver, OS, or physical hardware level. If it passes here but fails in a specific game, you instantly know it is an application-specific settings issue. That simple split can save you hours of troubleshooting.

Disclaimer: While our tools are designed for everyday diagnostics, browser behavior can vary by operating system and privacy settings. If you are troubleshooting expensive enterprise hardware, use these tools as a first-pass verification and follow up with manufacturer diagnostics when needed.

Frequently Asked Questions

Do I need to download or install any software?

No. All TestMyTech diagnostics are browser-based. You can test your hardware online safely without downloading any third-party desktop apps or browser extensions.

Are these online hardware tests free?

Yes. Every tool on TestMyTech, from our keyboard tester to our online monitor tester, is completely free to use for unlimited troubleshooting.

Is my privacy protected during microphone and webcam tests?

Absolutely. When you grant permission for audio or video tests, the diagnostic runs entirely locally in your browser. No data, audio, or video recordings are ever sent to our servers.

Does TestMyTech work on mobile devices (iPhone & Android)?

Yes. Most of our tools are designed to work across major platforms, including Apple iPhones, iPads, and Android smartphones, as well as Windows and Mac computers.

Can I test branded peripherals like Logitech, Razer, or Asus?

Yes. Because our tools read standard input signals through your web browser, they generally work with all major brands, including Logitech mice, Razer mechanical keyboards, and Asus or Dell monitors.