Video Background Remove (Chroma Key)

Video Background Remove (Chroma Key) | Online Free Tool | Elysia Tools

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category: Media
Input types: file, select, color, range
Output type: file
Sample coverage: 4
API ready: Yes

Overview

Easily remove solid color backgrounds from your videos using our online Chroma Key tool. Upload your video, select your background color—such as green, blue, black, white, or a custom hue—and adjust the similarity and edge blending settings to export your video with a transparent alpha channel in WebM, MOV, or MKV format.

When to use

When you need to isolate a subject filmed against a green screen or blue screen for video compositing.
When you want to remove solid black or white backgrounds from motion graphics or animations to make them transparent.
When preparing video assets with alpha channels for web players, video editors, or presentation software.

How it works

1Upload your video file (up to 100MB) containing a solid color background.
2Select the key color to remove, choosing from presets like green, blue, black, white, or picking a custom color.
3Fine-tune the similarity slider to adjust color tolerance and the blend slider to feather the edges.
4Choose your preferred output format (WebM, MOV, or MKV) and process the video to download the result with a transparent background.

Use cases

Removing green screen backgrounds from spokesperson videos to overlay them onto custom presentation slides.
Isolating animated icons or lower thirds rendered on a solid black background for overlaying on video timelines.
Extracting product demonstrations filmed against a solid white backdrop to place them on dynamic web pages.

Examples

1. Green Screen Spokesperson Overlay

Video Editor

Background

A video editor has a 15-second clip of a presenter speaking in front of a standard green screen.

Problem

The editor needs to remove the green background to place the presenter over a digital office background in their editing software.

How to use

Upload the video file, select 'Green (Green Screen)' as the Key Color, set Similarity to 0.35, Blend to 0.15, and select WebM as the output format.

{
  "keyColor": "0x00FF00",
  "similarity": 0.35,
  "blend": 0.15,
  "outputFormat": "webm"
}

Outcome

A WebM video with a transparent background, ready to be layered directly over the digital background.

2. Transparent Motion Graphics Export

Motion Designer

Background

A designer rendered a logo animation with a solid black background but needs it to be transparent for a website overlay.

Problem

The black background needs to be keyed out cleanly without losing the semi-transparent glow around the logo.

How to use

Upload the animation file, select 'Black' as the Key Color, set Similarity to 0.25, and adjust the Blend slider to 0.20 to preserve the soft edges. Export as MOV.

FAQ

What video formats can I export with transparency?

You can export your transparent video in WebM, MOV (QuickTime Animation), or MKV formats, which support alpha channels.

How do I remove a background color that is not green or blue?

Select the 'Custom Color' option in the Key Color dropdown and use the color picker to target your specific background color.

What do the Similarity and Blend settings do?

Similarity controls the color matching tolerance to remove similar shades, while Blend feathers the edges to create a smoother transition.

Is there a file size limit for the uploaded video?

Yes, the tool supports video uploads up to 100 MB.

Why is my exported video background black instead of transparent?

Ensure your video player supports alpha channels, or import the exported WebM, MOV, or MKV file into a video editor to overlay it on another track.

{
  "keyColor": "0x000000",
  "similarity": 0.25,
  "blend": 0.20,
  "outputFormat": "mov"
}

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Inputs

Result

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Green Screen Spokesperson Overlay

2. Transparent Motion Graphics Export

FAQ

Video Samples

Video AV1 Samples

Video H.264 Samples

Video H.265 Samples

Video Chroma Key

Video Audio Remove

Video Deinterlace

Video Watermark Remove

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