Green Screen Remover

Free

Key out a green or blue screen and export transparent WebM, MP4 or a luma matte.

Drop a green-screen video here, or

MP4 · WebM · MOV — decoded, keyed and re-encoded on your device

The matte is computed from chroma distance in YCbCr, so brightness variation across the screen does not change the threshold. Export decodes exact frames with WebCodecs rather than seeking a video element, so the output stays frame-accurate. Everything runs on your device — no upload, no queue, no watermark. Transparent output needs WebM with VP9 alpha; MP4 has no alpha channel at all, so pick a background for it.

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What is Green Screen Remover?

Updated August 28, 2026

Green Screen Remover keys out a green or blue background from a video entirely in your browser. It uses a YCbCr chroma-distance matte with despill, edge softness and matte shrink controls, and exports a transparent WebM, an MP4 over a colour or image background, or a luma matte. No upload, no watermark.

Remove a green or blue screen from a video and get real transparency back — in the browser, with no watermark and no upload. The keyer works in YCbCr rather than plain RGB, so it compares each pixel's colour independently of its brightness, which is what lets a single threshold cope with a screen that is lit unevenly instead of punching holes in the shadows. Click anywhere on the frame to pick the exact key colour, then tune similarity, edge softness, and matte shrink or grow to bite off a green fringe or recover a hairline. A despill slider pulls the reflected green out of skin and light-coloured clothing, which is the difference between a cutout that looks composited and one that does not. View the matte on its own to check your edges. Export a transparent WebM you can drop straight onto a timeline, an MP4 over a solid colour or your own background image, or a black-and-white matte to use as a luma key in any editor. Decoding, keying and encoding all run on your device with WebGL and WebCodecs.

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Why choose Green Screen Remover?

Green Screen Remover lets you perform browser-based chroma keying on videos without uploading files to an external server. By processing entirely on-device using WebGL and WebCodecs, it offers strong privacy protection while eliminating watermarks and signup barriers. It includes advanced controls like YCbCr-based color distance, despill sliders, and matte adjustments to achieve clean edges directly in your web browser.

Best for

Quickly removing green or blue screen backgrounds from short video clips
Creators needing transparent WebM exports without installing heavy desktop software
Users working on privacy-sensitive video footage that should not leave their device
Generating black-and-white luma mattes for use in external video editors

Good to know: Very large video files or complex production environments requiring multi-track compositing and advanced node-based keying may still need dedicated desktop editing suites.

How to Use Green Screen Remover

Remove a green or blue screen from your video and export a transparent WebM or custom-background MP4 directly in your browser.

1
Upload your green screen video
Open the Green Screen Remover tool and load the video file you want to process directly in your browser.
2
Pick the background key colour
Click anywhere on the video frame to select the exact green or blue screen colour you want to remove.
3
Tune the keyer and edges
Adjust similarity, edge softness, matte shrink, and the despill slider to eliminate green fringes and cleanly separate your subject.
4
Export your processed video
Choose to download a transparent WebM file, an MP4 over a solid colour or image background, or a black-and-white matte.

Estimated time: PT2M

Frequently Asked Questions

How do I remove a green screen from a video?

Simply open the Green Screen Remover tool in your browser, click anywhere on the frame to pick your exact key colour, and adjust the similarity, edge softness, and matte settings. The tool uses a YCbCr colour space to handle unevenly lit screens and lets you export the result instantly without uploading your file.

Is the Green Screen Remover free to use?

Yes, this tool is completely free with no watermarks applied to your exported videos. You can process your clips directly in your browser without needing a paid subscription or credit purchase.

Are my videos uploaded to a server for processing?

No files are ever uploaded to an external server. Decoding, keying, and encoding all run entirely on your own device using WebGL and WebCodecs, ensuring complete data privacy.

What video output formats are supported?

You can export your edited footage as a transparent WebM video, an MP4 placed over a solid colour or custom background image, or a black-and-white luma matte to use in any external video editor.

How does the tool handle unevenly lit green screens?

The keyer operates in the YCbCr colour space instead of plain RGB, which compares each pixel's colour independently of its brightness. This allows a single threshold setting to cope with shadows and uneven lighting without punching unwanted holes in your subject.

Can I remove green spill from skin and clothing?

Yes, the built-in despill slider pulls reflected green light out of skin tones and light-coloured clothing. This helps eliminate green fringes to give you a natural-looking composite instead of an obvious cutout.

What browser requirements are needed to run the tool?

Because decoding, keying, and encoding run entirely on your device, you need a modern web browser that supports WebGL and WebCodecs. All processing happens locally for fast, hardware-accelerated performance.