Quick answer: choose your video, select Green, raise Tolerance until the background disappears, then use Edge softness and Green spill reduction to refine the subject boundary before exporting.
How to remove green screen from video
Choose one local MP4, WebM, or MOV file.
Adjust tolerance while watching the transparent preview.
Download transparent WebM or PNG frames.
Settings that affect the edge
A clean key depends on the distance between the background color and the subject. Start with moderate settings and change one control at a time. The preview makes it easier to see when hair or clothing starts to disappear.
| Control | What to do | Watch for |
|---|---|---|
| Tolerance | Increase it gradually when green remains in the background. | Too much can remove similar colors from the subject. |
| Edge softness | Add a small amount to blend a hard border. | Too much can make fine hair look blurry. |
| Green spill reduction | Increase it when green light reflects onto skin, hair or clothing. | Strong settings can alter natural subject colors. |
What makes a cleaner result
Even lighting and a background that is separate from the subject are easier to process than wrinkles, shadows, or green clothing. If a hair edge contains green pixels, reduce tolerance first, then use a little edge softness. A color-key tool cannot reconstruct detail that is missing from a heavily compressed or motion-blurred clip.
Output and browser limits
The tool processes one file at a time in the browser. Video input is limited to 15 seconds and 1280 pixels on the longest side. PNG frame export is limited to 12 frames per second. The browser and device may impose lower memory or codec limits, and audio is not included in the transparent export.
Transparent WebM is convenient for web overlays and editors that support alpha video. PNG frames are a useful fallback when you need to inspect or assemble individual transparent frames.
Frequently asked questions
Can I remove a green screen without uploading the video?
Yes. The supported workflow runs locally in your browser; the source file is not sent to a server.
Can this remove a blue screen too?
Yes. Choose Blue or use Pick to sample another screen color from the preview.
Why do I still see a green fringe?
Increase Green spill reduction carefully. If the subject begins to lose detail, lower Tolerance and use a small amount of Edge softness.
Does the export include audio?
No. The transparent video and PNG frame exports contain the processed visual result, not the original audio track.