Blog
Short, practical guides for checking your hardware and fixing what the tests find.
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Apps
How to adjust photo brightness and contrast
Learn how to brighten a dark photo, add contrast without losing detail, and make careful adjustments in TooLab's browser-based Photo Editor.
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Apps
How to join several audio clips into one file
Combine audio clips in the right order, smooth the joins, and export one finished MP3 or WAV file using TooLab's browser-based Audio Editor.
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Tools
How to record a software bug for tech support
Record the steps that trigger a software bug, include useful audio, and save a clear screen recording without exposing private information.
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Tests
How to test whether Wi-Fi is dropping packets
Check for Wi-Fi drops with a live browser test, learn what lost requests mean, and narrow down whether the cause is your router or internet.
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Tests
Why Wi-Fi jitter matters for video calls
Learn how Wi-Fi jitter makes calls choppy, how to measure it in your browser, and which fixes can make audio and video more stable.
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Tests
Keyboard randomly misses letters when typing fast
Find out whether your keyboard is dropping individual presses, missing overlapping keys, or losing input in one app, then use a quick test to choose the right fix.
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Tests
Why microphone noise suppression cuts off words
Learn why noise suppression clips the start or end of your words, test whether the browser is doing it, and adjust your microphone settings.
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Tests
Why your two monitors have different scaling
Find out why text and windows look different across two monitors, check each display's resolution and scale, and adjust the right setting.
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Tests
How loud is your room? Test it with a microphone
Measure room noise with a microphone, understand the decibel reading, and learn how to get a steadier result or reduce distracting sounds.
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Tests
How to test a new PC before the return window ends
Check a new PC's screen, keyboard, ports, network, sound, and performance before the return deadline, and know when to ask for an exchange.
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Tests
Laptop acting strange? Run a full hardware check
Run a browser-based check of your laptop's keyboard, screen, camera, sound, battery and more, then use the results to narrow down the problem.
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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.