Hardware Testing
Sticky key? Dead pixel? Mic not picking up? Before you buy a replacement, run a quick check. Test every key, verify your screen's refresh rate, confirm your camera and microphone work, or measure ambient noise with the decibel meter.
Hardware Testing
Keyboard Test
Free online keyboard test with live key detection, key codes, a virtual keyboard, and key history. Check every key directly in your browser.
Mouse Test
Free online mouse test for buttons, scroll wheel, double-click behavior, pointer position, and click history. Check your mouse in the browser.
Gamepad Test
Free online gamepad test for buttons, analog sticks, triggers, D-pad and rumble. Check your Xbox, PlayStation or USB controller directly in the browser.
Refresh Rate Test
Free online screen refresh rate test tool. Detect actual monitor refresh rate through animation frame rate, supports 60Hz, 120Hz, 144Hz and higher.
System Check Tool
Free online system check tool. Detect your OS, browser, screen resolution, hardware config, and network status. Privacy-first local browser processing.
Decibel Meter
Free online decibel meter, measure ambient noise levels in real time with gauge display, noise level classification, and statistics
Microphone Test
Free online microphone test with live volume, waveform, and spectrum analysis. Check recording playback, device info, and browser mic permissions.
Camera Test
Free online camera test with live preview and photo capture. Check resolution and device info with privacy-friendly browser processing.
What this category can do
Hardware testing tools check what the browser can see from local devices: keyboard keys, mouse buttons, refresh rate, system information, sound level, microphone input and camera access. They are useful for quick troubleshooting, but they do not replace driver, firmware or repair diagnostics.
Most tools process input in the browser when possible. For files, tokens, documents or network checks, review the selected tool before using sensitive data.
Common use cases
- Confirm whether keyboard keys, mouse buttons or wheel actions register correctly.
- Check refresh rate and screen behavior after changing display settings or cables.
- Test microphone, camera and ambient sound before a meeting, recording or support session.
FAQ
Why can the browser not access my camera?
Permission may be denied, another app may be using it, or the operating system may block browser access.
Can this diagnose every hardware fault?
No. It confirms browser-visible behavior; physical faults and driver problems may need system tools.
Why is refresh rate lower than expected?
Cable type, graphics settings, display mode and browser timing can all affect the measured value.
Is the decibel meter precise?
It is useful for rough comparison, but ordinary microphones are not calibrated sound meters.
Related Categories
Network Tools
Troubleshooting connectivity? Check your public IP, ping a host, scan open ports, query WHOIS records, verify SSL certificates, or test WebSocket connections. Run network diagnostics without opening a terminal.
Image Tools
Shrink oversized photos without losing quality, batch convert between PNG, JPEG, and WebP, add text watermarks, turn images into grayscale, generate passport-style ID photos, or record your screen. A mix of in-browser tools (watermark, grayscale, Base64) and server-powered conversions (format conversion, compression) — uploaded files are deleted right after processing.
Design Tools
Grab a color from the screen, build CSS gradients, generate QR codes and barcodes, preview SVGs, check for dead pixels, or find the right solid background shade. Quick visual tasks that don't need a full design suite.
