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Dead Pixel Test
Free online dead pixel test – check any screen in 30 seconds
Detect dead pixels, stuck pixels, and LCD defects on any screen – phones, tablets, monitors, and laptops. A free, browser-based tool that cycles through solid colors (red, green, blue, white, black) in fullscreen mode. No download, no signup, works on any device with a web browser. Perfect for: - Testing new monitor purchases before the return window - Checking used/refurbished displays - Quick diagnosis when you suspect screen defects
Built this after buying a used monitor and spending an hour trying to figure out if a speck on my screen was a dead pixel or just dust.
Existing tools required downloading apps or navigating clunky interfaces. I wanted something that works instantly in any browser, on any device – phone, tablet, laptop.
The 4K panel on my ProArt has 8 million pixels. Finding one dead pixel manually is nearly impossible without systematic color cycling. This tool does exactly that: fullscreen solid colors, 30 seconds per check, no friction.
Turns out the "speck" was just dust. But the tool stayed useful – now I test every new display purchase before the return window closes.
About Dead Pixel Test on Product Hunt
“Free online dead pixel test – check any screen in 30 seconds”
Dead Pixel Test was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #101 on the daily leaderboard. Detect dead pixels, stuck pixels, and LCD defects on any screen – phones, tablets, monitors, and laptops. A free, browser-based tool that cycles through solid colors (red, green, blue, white, black) in fullscreen mode. No download, no signup, works on any device with a web browser. Perfect for: - Testing new monitor purchases before the return window - Checking used/refurbished displays - Quick diagnosis when you suspect screen defects
On the analytics side, Dead Pixel Test competes within Hardware, Developer Tools and Tech news — topics that collectively have 527.9k followers on Product Hunt. The dashboard above tracks how Dead Pixel Test performed against the three products that launched closest to it on the same day.
Who hunted Dead Pixel Test?
Dead Pixel Test was hunted by Michael Aleme. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Dead Pixel Test including community comment highlights and product details, visit the product overview.
Michael Aleme