# DeadPixelTest.net > DeadPixelTest.net is a free browser-based display and device diagnostics website for testing screens, pixels, color uniformity, motion, text sharpness, keyboards, mice, cameras, microphones, touch input, sensors, browser capabilities, and related hardware behavior. Most tests run locally in the visitor's browser and do not require an account or software installation. Use the pages below as the canonical public resources for DeadPixelTest.net. Interactive results are generally user-observed diagnostics, not automated hardware certification. Camera, microphone, location, sensor, and similar permissions are requested only after user action where supported by the browser. Key interpretation notes: - Screen tests are visual diagnostics; users decide whether they observe dead/stuck pixels, banding, blur, ghosting, poor uniformity, or other artifacts. - The stuck-pixel exerciser is an optional visual exercise and cannot guarantee repair of a defective pixel. - Browser-reported resolution, pixel ratio, camera resolution, sensors, location, and network values depend on browser and device capabilities. - Full-screen color pages may also provide long-duration screen-light/video options, timers, Wake Lock where available, and downloadable backgrounds. - Privacy, terms, and contact information are linked below. ## Primary tools - [Complete Screen Test](https://deadpixeltest.net/complete-screen-test.html): Guided full-screen checks for pixels, uniformity, gradients, contrast, text clarity, and motion. - [Device Test Center](https://deadpixeltest.net/device-test-center.html): Main hub for screen, camera, audio, input, sensor, and browser diagnostics. - [Mobile Test Center](https://deadpixeltest.net/mobile-test-center.html): Phone and tablet diagnostics including touch, camera, microphone, sensors, GPS, browser, and network checks. - [Dead Pixel Test](https://deadpixeltest.net/): Main dead-pixel and display testing entry point. - [Screen Colors & Light](https://deadpixeltest.net/screen-color-tools.html): Full-screen solid colors, ambient-light tools, timers, downloads, and long-duration screen options. - [Screen Effects & Ambient Light](https://deadpixeltest.net/screen-effects.html): Animated ambient lighting and screen-effect presets. ## Display diagnostics - [Gradient Test](https://deadpixeltest.net/gradient-test.html): Check gradients for banding and abrupt tone transitions. - [Brightness & Contrast Test](https://deadpixeltest.net/brightness-and-contrast-test.html): Check black/white levels and shadow/highlight visibility. - [Text Sharpness Test](https://deadpixeltest.net/text-sharpness-test.html): Check scaling, font clarity, fine detail, and color fringing. - [Motion Blur & Ghosting Test](https://deadpixeltest.net/motion-blur-test.html): Moving patterns for blur, ghosting, and transition artifacts. - [Screen Response Time Test](https://deadpixeltest.net/screen-response-time-test.html): Visual response-time and pixel-transition checks. - [Screen Resolution & Scaling Test](https://deadpixeltest.net/resolution-tester.html): Browser-reported resolution, viewport, and device-pixel-ratio information. - [Screen Size Test](https://deadpixeltest.net/screen-size-test.html): Screen/viewport dimensions and pixel ratio. - [Pixel Repair / Stuck Pixel Exerciser](https://deadpixeltest.net/pixel-repair-tool-online.html): Rapid full-screen color cycling for stuck-pixel exercising; no repair guarantee. ## Full-screen colors - [White Screen](https://deadpixeltest.net/white-screen.html): Pure white full-screen light and display check. - [Black Screen](https://deadpixeltest.net/black-screen.html): Pure black full-screen display check. - [Red Screen](https://deadpixeltest.net/red-screen.html): Pure red full-screen pixel/color check. - [Green Screen](https://deadpixeltest.net/green-screen.html): Pure green full-screen pixel/color check. - [Blue Screen](https://deadpixeltest.net/blue-screen.html): Pure blue full-screen pixel/color check. - [Gray Screen](https://deadpixeltest.net/gray-screen.html): Gray uniformity, dirty-screen-effect, and banding check. - [Yellow Screen](https://deadpixeltest.net/yellow-screen.html): Full-screen yellow light/background. - [Orange Screen](https://deadpixeltest.net/orange-screen.html): Full-screen orange/warm light/background. - [Pink Screen](https://deadpixeltest.net/pink-screen.html): Full-screen pink light/background. - [Purple Screen](https://deadpixeltest.net/purple-screen.html): Full-screen purple light/background. - [Custom Color Screen](https://deadpixeltest.net/custom-color-screen.html): Choose a HEX color for a full-screen color/light surface. ## Input and hardware tests - [Keyboard Tester](https://deadpixeltest.net/keyboard-tester-online.html): Visual online keyboard test using browser keyboard events. - [Mouse Tester](https://deadpixeltest.net/mouse-checker-online.html): Mouse buttons, wheel, double-click, and pointer movement checks. - [Touch Screen Test](https://deadpixeltest.net/touch-test-online.html): Full-screen touch coverage, dragging, and dead-zone checks. - [Multi-Touch Tester](https://deadpixeltest.net/multi-touch-tester.html): Multi-finger touch and gesture point checks. - [Stylus & Pen Test](https://deadpixeltest.net/stylus-drawing-test.html): Stylus drawing, pressure, tilt, and pointer input where supported. - [Audio Tester](https://deadpixeltest.net/audio-tester.html): Speaker/channel and browser audio checks. - [Microphone Tester](https://deadpixeltest.net/microphone-tester.html): Microphone level, waveform, recording, and playback checks. ## Camera, device and browser tests - [Camera Tester](https://deadpixeltest.net/camera-tester.html): General laptop, phone, USB, and compatible camera preview testing. - [Webcam Test](https://deadpixeltest.net/webcam-test.html): Browser webcam test. - [Laptop Camera Test](https://deadpixeltest.net/laptop-camera-test.html): Laptop camera-specific test. - [External Webcam Test](https://deadpixeltest.net/external-webcam-test.html): USB/external camera testing. - [TV Camera Test](https://deadpixeltest.net/tv-camera-test.html): Compatible smart-TV/browser camera testing. - [Camera Resolution Test](https://deadpixeltest.net/camera-resolution-test.html): Reports active webcam stream dimensions where available. - [Device Information](https://deadpixeltest.net/device-information.html): Browser-visible screen, browser, and device information. - [Browser Capability Test](https://deadpixeltest.net/browser-capability-test.html): Detects support for relevant browser APIs and capabilities. - [Sensor Tester](https://deadpixeltest.net/sensor-tester.html): Orientation, motion, gyroscope, and accelerometer data where exposed. - [GPS & Location Test](https://deadpixeltest.net/gps-location-test.html): Browser geolocation accuracy and available location fields after permission. - [Network & Latency Test](https://deadpixeltest.net/network-test.html): Browser-side connectivity and latency estimates. - [Device Life Checker](https://deadpixeltest.net/expiry-checker.html): Planning estimate for device age/useful life; not a hardware failure prediction. ## Guides and explanations - [Diagnostics Blog](https://deadpixeltest.net/blogs/): Guides about dead pixels, display quality, motion, calibration, refresh rate, repairs, and troubleshooting. - [Complete Monitor Testing Checklist](https://deadpixeltest.net/blogs/complete-monitor-testing-checklist.html): Practical sequence for testing a monitor. - [What Are Dead Pixels?](https://deadpixeltest.net/blogs/what-are-dead-pixels.html): Explanation of dead pixels and how to check a display. - [Dead Pixel Types, Causes and Fixes](https://deadpixeltest.net/blogs/dead-pixels-types-causes-fixes.html): Overview of pixel defects and practical next steps. - [Motion Blur vs Ghosting](https://deadpixeltest.net/blogs/motion-blur-vs-ghosting.html): Explains the difference and how to test for each. - [Monitor Color Calibration Guide](https://deadpixeltest.net/blogs/monitor-color-calibration-guide.html): Practical color-calibration guidance. - [60Hz vs 144Hz vs 240Hz](https://deadpixeltest.net/blogs/refresh-rate-60hz-144hz-240hz.html): Refresh-rate comparison and use cases. - [sRGB vs Adobe RGB vs DCI-P3](https://deadpixeltest.net/blogs/srgb-adobe-rgb-dci-p3.html): Simple color-gamut explanation. - [No Signal on Monitor](https://deadpixeltest.net/blogs/no-signal-monitor-troubleshooting.html): Troubleshooting guide for a monitor with no signal. ## Site information - [About](https://deadpixeltest.net/about-us.html): Site purpose and scope. - [Privacy Policy](https://deadpixeltest.net/privacy.html): Privacy information. - [Terms and Conditions](https://deadpixeltest.net/terms-and-conditions.html): Terms of use. - [Contact](https://deadpixeltest.net/contact-us.html): Contact information. - [Sitemap](https://deadpixeltest.net/sitemap.xml): Search-engine URL inventory. - [Extended AI index](https://deadpixeltest.net/llms-full.txt): Expanded list of public tools and guides.