Blog
Tests
Guides for testing your keyboard, mouse, screen, sound, network and other hardware, and for fixing what the tests find.
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Tests
How to compare noise levels before and after soundproofing
Use the same browser noise meter, microphone position, and sound source to compare readings fairly and see whether soundproofing reduced noise.
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Tests
Is your fan too loud for calls? How to check
Measure fan noise at your desk, compare readings with the fan off, and find out whether mic placement or call settings can make your voice clearer.
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Tests
Why phone and laptop noise readings differ
Phone and laptop noise meters can show different decibel levels in the same room. Learn why, how to compare them fairly, and when a reading matters.
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Tests
Is your Wi-Fi weak, or is it the internet?
Learn how to tell whether weak Wi-Fi or your internet connection is causing slow pages, buffering, or dropouts, then choose the right fix.
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Tests
Why your browser can't tell you how much RAM you have
See why a browser reports only an estimate of your RAM, what that number means, and where to check the exact amount in Windows or macOS.
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Tests
How to test every key on your keyboard
Check every key that a browser can detect, spot keys that fail or work only in combinations, and learn what to do about Fn and system keys.
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Tests
How to test a used webcam before buying it
Check a used webcam's image, focus, frame rate, cable and mount before you pay, with a browser camera test and a short list of warning signs.
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Tests
Why your microphone sounds too quiet
Learn why your microphone sounds quiet, test its input level in your browser, and work through settings, placement, and app fixes that can help.
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Tests
Why your spacebar only works when pressed hard
If your spacebar only works when you press hard, test whether the key is failing, then clean it safely and check settings that can delay input.
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Tests
Webcam looks too dark even in a bright room
Find out whether your webcam is actually dark or the app is causing it, then fix lighting, camera settings, permissions, or a blocked lens.
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Tests
Camera works in one app but not another
Find out why your camera works in one app but not another, then check permissions, device selection, and settings with a quick browser test.
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Tests
Microphone sounds robotic or distorted: fixes
Find out whether a robotic microphone sound comes from clipping, Bluetooth, browser processing or an app, then try fixes for Windows and Mac.