RemoveBGVideo is an online AI video background remover that detects subjects frame-by-frame to remove backgrounds without a green screen. It supports up to 4K resolution, videos up to 60 minutes and files up to 500MB. Outputs include transparent WebM, MOV, PNG sequences, GIF and WebP. The service provides fast GPU-accelerated processing, free previews before purchase, batch processing for multiple clips, audio preservation, and flexible replacement options like solid colors or custom images. API access is listed as coming soon for integration and higher-volume workflows.