Video Background Remove (Chroma Key)

Remove solid color backgrounds from video using chroma key (green screen, blue screen, etc.)

Click to upload file or drag and drop file here

Maximum file size: 100MB Supported formats: video/*

Select custom background color to remove (when Key Color is set to Custom)

0 0.3 1

Color matching tolerance (0-1). Higher values remove more similar colors.

0 0.1 1

Edge feathering (0-1). Higher values create softer edges.

Key Facts

Category
Images, Audio & Video
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

  • •Upload your video file (up to 100MB) containing a solid color background.
  • •Select the key color to remove, choosing from presets like green, blue, black, white, or picking a custom color.
  • •Fine-tune the similarity slider to adjust color tolerance and the blend slider to feather the edges.
  • •Choose 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.
Example Config
{
  "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.
Example Config
{
  "keyColor": "0x000000",
  "similarity": 0.25,
  "blend": 0.20,
  "outputFormat": "mov"
}
Outcome
A high-quality MOV video file with a transparent alpha channel, preserving the logo's soft edges.

Try with Samples

video, file
Video Samples
Sample video files in different formats and orientations
title token video
video
Video AV1 Samples
Sample video files encoded in AV1 format
title token video
video
Video H.264 Samples
Sample video files encoded in H.264 (AVC) format
title token video
video
Video H.265 Samples
Sample video files encoded in H.265 (HEVC) format
title token video
video

Related Hubs

Video-to-Audio and Animation Conversion Tools
Compare tools that turn video into audio, extract video streams, and convert between short-form video and animated image formats in one hub.
Video Preview, Extraction, and Subtitle Tools
Compare video preview generation, stream extraction, audio extraction, subtitle translation, and quick flip tools in one hub for lightweight video prep workflows.
Audio Encoding and Format Conversion Tools
Compare audio format conversion, bitrate changes, sample-rate conversion, codec swaps, and export tools in one hub for delivery and archive workflows.
Image Format Conversion and Animated Export Tools
Compare image format converters for JPG, PNG, GIF, AVIF, WebP, TIFF, ICO, base64, and animation-friendly exports in one hub.

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.

API Documentation

Request Endpoint

POST /en/api/tools/video-background-remove

Request Parameters

Parameter Name Type Required Description
videoFile file (Upload required) Yes -
keyColor select No -
customColor color No Select custom background color to remove (when Key Color is set to Custom)
similarity range No Color matching tolerance (0-1). Higher values remove more similar colors.
blend range No Edge feathering (0-1). Higher values create softer edges.
outputFormat select No -

File type parameters need to be uploaded first via POST /upload/video-background-remove to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
File: File

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-video-background-remove": {
      "name": "video-background-remove",
      "description": "Remove solid color backgrounds from video using chroma key (green screen, blue screen, etc.)",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=video-background-remove",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]