Media
Video Chroma Key
Remove green screen or any colored background from video and replace with another video
file· File resultOpen tool
Quick start
Call this tool from your code in three languages.
cURL
# 1) Request a presigned URL → returns { uploadUrl, storageKey }
curl -X POST 'https://api.elysiatools.com/api/upload/presign/video-chroma-key' \
-H 'Content-Type: application/json' \
-d '{"filename":"foregroundVideo.ext","contentType":"application/octet-stream","size":12345}'
curl -X POST 'https://api.elysiatools.com/api/upload/presign/video-chroma-key' \
-H 'Content-Type: application/json' \
-d '{"filename":"backgroundVideo.ext","contentType":"application/octet-stream","size":12345}'
# 2) PUT the file bytes directly to the presigned uploadUrl
curl -X PUT '<presigned uploadUrl>' \
--data-binary @/path/to/file.ext
# 3) Call the tool, passing the returned storageKey for each file field
curl -X POST 'https://api.elysiatools.com/en/api/tools/video-chroma-key' \
-F 'foregroundVideo=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'backgroundVideo=uploads/2026/01/01/your-tool-1700000000000-abc123.ext' \
-F 'color=green' \
-F 'customColor=0x00FF00' \
-F 'similarity=0.15' \
-F 'blend=0.1' \
-F 'outputFormat=mp4'