Blog
Short, practical guides for checking your hardware and fixing what the tests find.
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Tools
How to inspect a PNG for hidden text fields
Check a PNG for hidden title, author, comment, and software fields, learn what they mean, and remove unwanted text metadata before sharing.
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Games
Controller input works on one side but not the other
Test both sticks, triggers, buttons, and the D-pad in your browser, then find out whether one side is blocked by settings, connection, or hardware.
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Tests
Frame-rate problem or network lag? How to tell
Learn whether choppy video comes from your camera or a shaky connection, then check frame rate, network stability, and the settings most likely to help.
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Tests
How to spot a dirty webcam lens in a live preview
Use a live camera preview to tell whether haze, glare, or blur comes from a dirty webcam lens, then clean it safely and check again.
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Tools
How to inspect edits to a restaurant's online menu
Compare two menu versions to spot changed prices, ingredients, options, and labels, then verify which edits need correction or approval before customers order.
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Tests
How to compare two SD cards for photo transfers
Compare SD card read and write speeds fairly, then use the results to estimate which card will move photo files faster in your setup.
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Tests
How to test MIDI controller transport controls
Check whether your MIDI controller's play, stop, and record buttons send messages, then find out what to check if they do not.
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Tests
How to check speeds over a USB phone tether
Check download, upload, ping and jitter over a USB phone tether, then compare results to find whether the limit is cellular, cable or computer.
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Tests
Which browser tests help a freelance IT technician?
Use browser-based hardware checks to triage client complaints, verify repairs, and collect useful evidence without installing diagnostic software.
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Tests
Low memory copy score: what it means
Learn what a low RAM copy score means, how it differs from read and write results, and how to rerun the test fairly before troubleshooting.
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Tests
Why a pixel is always blue on a black screen
A blue dot on a black screen often points to a stuck subpixel. Test it across colors, rule out software, and decide whether repair is needed.
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Tests
How to check if your browser supports video export
Check your browser's codecs and features, then run a short export test to see whether your editor can save video in the format you need.