Blog
Short, practical guides for checking your hardware and fixing what the tests find.
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Tools
How to sort a large CSV file in your browser
Sort a large CSV file without installing software. Learn how to choose a column, check the order, and avoid common sorting mistakes.
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Apps
How to select and move an object in an image
Select an object with the right method, move it without shifting the rest of the photo, and clean up the gap left behind.
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Games
How to test a used gaming mouse before buying
Check a used gaming mouse for missed clicks, double-clicking, scroll problems and polling rate, then inspect its sensor, cable and wear before you pay.
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Tests
15-minute computer health check after a repair
Use TooLab's Test Everything to check the parts affected by a repair, catch obvious problems, and decide what needs a closer look before you leave.
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Tests
How to test a used laptop before buying it
Run browser-based checks on a used laptop’s screen, keys, battery and performance, then spot warning signs before you hand over money.
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Tools
Make a QR code for Wi-Fi guests
Create a Wi-Fi QR code guests can scan to join your network, choose the right security type, and test it before you print or share it.
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Tests
Why does my laptop get slow when it gets hot?
Learn why heat can slow a laptop, how to check for thermal throttling with a browser test, and what to do before dust or a failing fan causes damage.
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Tests
Is my USB flash drive fake? How to check its real size
Check whether a USB flash drive is falsely reporting its capacity, verify how much data it can really store, and tell fake size from slow speed.
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Tests
Mouse double-clicks on a single click: how to fix it
If your mouse double-clicks when you press once, test whether the switch sends extra clicks, then adjust click speed, check the connection, or replace it.
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Tests
Only one side of my headphones works
Find out whether one headphone channel is silent, then check balance settings, the cable, Bluetooth, and the audio source to fix it.
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Tests
Laptop camera not working in Zoom or Teams
Test whether your laptop camera works outside Zoom or Teams, then fix the privacy, app, or device setting blocking your video.
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Tests
How to check a new monitor for dead pixels
Check every color and corner of a new monitor for dead or stuck pixels, then decide what to do before your return window closes.