Blog
Short, practical guides for checking your hardware and fixing what the tests find.
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Tools
How to verify a website form's CSV export
Check that a website form's CSV export has the right rows, columns, and values, and catch quoting or formatting problems before importing it.
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Tests
How to find a rattling object without loud music
Use a slow bass sweep to make a loose object buzz at modest volume, then narrow down the source with simple isolation checks.
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Tools
How to compare two email templates before a campaign
Compare two email templates, spot wording and placeholder changes, then check links, subject lines, and campaign details before you send.
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Apps
What to inspect before reopening an image project
Check the file, layers, fonts and canvas before editing again, so you can spot an old or flattened version before changes overwrite your work.
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Tests
How to test a USB webcam through a docking station
Check whether your USB webcam works reliably through a dock, compare its preview and frame rate with a direct connection, and find what to fix.
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Tools
How to compare subtle blue-gray dashboard colors
Sample blue-gray dashboard colors, compare their HEX and RGB values, and separate a real interface mismatch from effects caused by your screen.
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Tests
Fine text prints unevenly on glossy paper? What to check
Find out whether uneven fine text comes from glossy paper, print settings or the printer, using a browser test page and a few targeted checks.
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Tests
How to test a wireless mouse at different receiver positions
Compare a wireless mouse with its receiver near and far from the mouse, spot dropouts, and find whether distance, obstruction, or a USB port matters.
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Tests
Webcam grainy in low light: how to fix it
Learn why your webcam looks grainy in a dim room, test its live preview, and improve the picture with lighting, camera settings, and simple checks.
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Tools
How to choose a time for a global study group
Compare local times, find overlapping waking hours, and choose a fair meeting slot for students in different time zones with a browser-based world clock.
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Tests
Why a display cable problem can mimic pixel defects
Learn how a loose or failing display cable can create specks, lines, and flicker that look like bad pixels, then isolate the cable from the screen.
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Apps
How to change the pitch of a recorded voice
Raise or lower a recorded voice in TooLab's Audio Editor, compare pitch changes with speed changes, and export the finished file as WAV or MP3.