Frequently Asked Questions
Everything you need to know about Screen Medic — our free online screen diagnostic tool.
Got a question? We've got answers. Here are the most common questions we hear from our users. If you don't find what you're looking for, feel free to contact us.
General Questions
Yes, absolutely. Screen Medic is 100% free — no hidden fees, no premium tiers, and no credit card required. We believe that everyone should have access to professional screen diagnostics without any barriers.
There are no limits on how many times you can use the tool, and you don't need to create an account to access the full functionality. Just visit the site, run the tests, and you're done.
No personal data is ever collected. Your screen images and detailed diagnostic results are processed entirely locally in your browser. We only collect anonymous aggregate statistics (screen brand + test result category) to power our brand statistics page. No personal information, IP addresses, or screen contents are ever stored.
We take your privacy very seriously. Unlike many online tools, we don't have access to your screen or any of the information you're testing. You can read our full Privacy Policy for more details.
Highly accurate. Screen Medic uses industry-standard test patterns that are trusted by display manufacturers and professional calibration experts worldwide. These are the same patterns used in professional calibration tools and laboratories.
However, the accuracy also depends on your display and its settings (brightness, contrast, and color profile). For the most reliable results, we recommend running the tests with your screen at its default settings.
Screen Medic is a diagnostic tool, not a repair tool. Its primary purpose is to help you identify if your screen has dead, stuck, or malfunctioning pixels.
However, in some cases, the rapid color cycling used in our diagnostic patterns can help unstick a temporarily stuck pixel. This is a common phenomenon, but it's not guaranteed. If you find a pixel issue, please contact your screen manufacturer or reseller for guidance on their warranty and repair policies.
Compatibility & Usage
Yes, absolutely. Screen Medic works on any device with a modern web browser — desktop computers, laptops, tablets, and smartphones.
You can test the screen of your phone, tablet, laptop, or desktop just as easily. The tool is fully responsive and adapts to any screen size. No apps to download or install, just open your browser and go to https://screenmedic.icu.
No, not at all. Screen Medic runs directly in your web browser using standard HTML, CSS, and JavaScript. There is absolutely nothing to download, install, or configure.
This makes it perfect for checking used devices before purchase or running a quick test on any computer without admin rights. Just visit the website and start the diagnosis.
Absolutely. Screen Medic is the perfect tool for inspecting a used monitor or laptop before purchase. Simply open the website on the device, run our dead pixel test and OLED burn-in scan, and you'll know within 60 seconds if the screen has any hidden defects.
This can save you from costly mistakes and returns. No installation or signup is required, making it ideal for on-the-spot diagnostics at second-hand shops or private sales.
Technical Questions
A dead pixel is a pixel that remains permanently off (black), usually due to a hardware defect. It cannot be fixed and typically requires a screen replacement or professional repair.
A stuck pixel is a pixel that is stuck on a single color (red, green, or blue) or appears white. This can sometimes be fixed using rapid color cycling (which our tool provides), as it may force the pixel to "unstick" itself. However, this is not always successful.
Screen Medic identifies both types of issues, helping you understand what you're dealing with. For more details, check our Guides.
OLED burn-in occurs when static images (like a logo or taskbar) are displayed for extended periods, leaving a permanent faint ghost image on the screen. It's a common issue with OLED panels due to the organic materials used in their construction.
Screen Medic includes a dedicated OLED Burn-In Scan that displays specific test patterns to reveal any ghost images, image retention, or permanent burn-in marks. This test helps you assess the true condition of an OLED display.
The Ghosting Test detects motion blur, trailing, and pixel response issues by displaying moving objects on your screen. If you see a trail or blur behind the moving object, it indicates that your screen has a ghosting issue.
This is particularly important for gamers and video editors, where fast motion is common. Our test uses industry-standard patterns to give you a clear and accurate assessment of your screen's performance.