Green Out Screen

White Out Screen’s green display is a free online tool that fills your monitor with a chroma key green background. Used as a virtual green screen for webcams, OBS and Zoom, pixel testing and ambient lighting — no download or signup required.

White Black Red Green Blue Yellow Orange Pink Purple

F or Space — Fullscreen

ESC — Exit fullscreen

← → — Cycle colors

R — Reset color

What people use it for

🎥 Chroma Key Background

Use your monitor as a free green screen for webcam software like OBS, Zoom, Streamlabs and Teams — no physical green screen required.

🖥️ Green Pixel Testing

Isolates green subpixel defects that are invisible on white or mixed colour backgrounds.

🌿 Calming Ambiance

Green is scientifically linked to relaxation and reduced anxiety, making it ideal for meditation, focus sessions or break time.

📸 Product Photography

Clean green backdrop for product shots requiring background removal in editing software.

🎮 Streaming Setup

Streamers use monitor green screens as a compact background solution in small recording spaces.

Screensavers

📀

DVD Screensaver

Pro tips

Use Yellow screen for comfortable late-night reading — warmer and less disruptive than white.
Press F or click the screen to launch true fullscreen mode instantly.
Use Red screen to preserve night vision while stargazing — red light is least disruptive to dark adaptation.
Use Green screen as a chroma key background for webcam effects in video calls.
Adjust the Lightness slider to dial in the exact brightness you need without touching your system settings.
Download any color at up to 8K resolution as a PNG — great for design mockups or wallpapers.

Frequently asked questions

Can I use my monitor as a green screen for free?

Yes. Display a fullscreen green background on your monitor and position it behind or beside you. Webcam software like OBS, Zoom and Streamlabs can use this as a chroma key background to replace the green with any virtual background.

What shade of green works best for chroma key?

The standard chroma key green is approximately #00B140. Our green screen defaults to a clean green tone. Use the colour picker or hex input to adjust to your preferred chroma key shade for the best results with your webcam software.

How do I test green subpixels on my monitor?

Display a fullscreen green background and look for any dark or discoloured spots. Dead green subpixels appear as dark patches against the green background — defects that are invisible on white or mixed colour screens.

Does a green screen work on a laptop monitor?

Yes, though a larger external monitor works better as it provides a bigger background area. Position the laptop or monitor behind you and angle it to fill as much of your webcam frame as possible.

Is the green screen tool free?

Completely free. No signup, no ads, no tracking. Open it in your browser and it works instantly.