Video Background Remover (Chroma Key)
Remove a selected uniform video colour and replace it with a colour or image. Preview and tune chroma key locally before exporting.
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Edit your media on your device
12 local video and audio workflows with clear codec, duration and export limits.
Video editing
Audio workflows
How to use Video Background Remover (Chroma Key)
- Choose a video shot against a reasonably uniform background, then choose a key colour or green/blue preset.
- Choose a replacement colour or image. Preview a frame and tune tolerance and softness to preserve the subject.
- Set clip range/output size and export in the foreground. Preview and download the replacement video.
What this tool does
Uses colour-distance chroma key, not AI subject segmentation. Choose green, blue or a custom key colour, adjust tolerance and soft edges, and replace matching pixels with a solid colour or center-cropped image. Preview a sampled frame before recording a local opaque video. Matching colours on clothing or subjects can also disappear. Complex scenes, shadows and fine hair require manual judgment; no automatic subject detection is included.
Supported files, limits & important details
One playable video, 20 MB, 60 seconds, up to 8 million input pixels per frame. Output maximum side 720, no upscaling, approximate native recording in the foreground. PNG/JPEG/WebP replacement image up to 5 MB/4 million pixels. WebM/MP4 output varies by browser. Opaque replacement only: no alpha-video export. Not AI removal of arbitrary backgrounds. No uploads, model downloads, autosave or account. Keep original media and inspect the full exported result.
Input limits are enforced before processing. Clear removes your input and result from this page. This tool does not store your input between visits.
Keep your workflow moving
Questions about Video Background Remover (Chroma Key)
How do I use Video Background Remover (Chroma Key)?
Choose a video shot against a reasonably uniform background, then choose a key colour or green/blue preset. Choose a replacement colour or image. Preview a frame and tune tolerance and softness to preserve the subject. Set clip range/output size and export in the foreground. Preview and download the replacement video.
Are files or text uploaded when I use Video Background Remover (Chroma Key)?
No. Video Background Remover (Chroma Key) processes your input in your browser. The tool does not upload your document or text for processing. Keep your original and review the result.
What should I check before relying on Video Background Remover (Chroma Key)?
Uses colour-distance chroma key, not AI subject segmentation. Choose green, blue or a custom key colour, adjust tolerance and soft edges, and replace matching pixels with a solid colour or center-cropped image. Preview a sampled frame before recording a local opaque video. Matching colours on clothing or subjects can also disappear. Complex scenes, shadows and fine hair require manual judgment; no automatic subject detection is included.
Need help choosing a workflow? Read our practical PDF and file guides. How your data is handled.