Green Screen Online
Use a green screen to inspect green subpixels and test how a display handles a bright, solid green field.
High brightness can feel harsh in a dark room. Lower brightness if your eyes feel strained.
Shortcuts: F fullscreen, Esc exit fullscreen where supported, Space controls, 1-9 preset colors, arrow keys cycle test colors. In dead pixel fullscreen, tap to advance and swipe left or right to change colors.
Quick answer
Use a green screen to inspect green subpixels and test how a display handles a bright, solid green field. Choose a color, open it full screen, adjust brightness if needed, and press Esc to exit where supported.
Summary
| Best for | Opening a plain full-screen color quickly. |
|---|---|
| Main control | Color presets, brightness, timer and fullscreen. |
| Exit | Press Esc where supported or use the on-screen exit button. |
Display testing use
Green is one of the three primary screen color channels. A full-screen green field can reveal stuck or weak green subpixels that may not show on white alone.
It can also make dust and surface marks easier to compare against other solid colors.
Best way to inspect
Use fullscreen and check the whole panel slowly. Follow with red, blue, white and black if you are doing a real pixel test.
Tool category
Browse more tools in Color Screens.
Related tools
Related guides
FAQ
Is this a chroma key tool?
No. It is a simple browser green screen, not a video editor or chroma key app.
Does it work on mobile?
Yes. It works in modern mobile browsers, with fullscreen support depending on the browser.