About VideoBackgroundRemover.dev

VideoBackgroundRemover.dev is a small, independent website with free tools for removing, replacing and blurring the background of videos. Everything happens inside your web browser: the video is never uploaded, there are no accounts and no watermarks.

Why VideoBackgroundRemover.dev exists

Removing the background from a video used to need either a green screen and an editing program, or an online service that uploads your clip, processes it on a rented graphics card and then charges credits to download the result. Uploading takes time, credits run out, results are often capped at low resolution, and you have to trust a stranger's server with your footage.

Modern browsers changed that. With WebGPU a web page can use your graphics card, and with WebCodecs it can decode and encode video directly. That makes it possible to run a video matting model on your own computer, at full resolution, with nothing leaving the device. VideoBackgroundRemover.dev is built on that idea.

What the tools on VideoBackgroundRemover.dev do

There is one engine behind every page, with different starting settings:

• AI cutout: an AI matting model finds people in ordinary footage and produces a soft alpha matte that keeps hair natural. It carries information from one frame to the next, so outlines stay stable.
• Color key: a classic chroma key for green screen, blue screen or any single-color background, with tolerance, softness and spill removal.
• Outputs: transparent WebM with an alpha channel, MP4 or WebM with a solid color, an image or a blurred version of the original background, with the original audio kept.

How your video is processed

1. Your browser reads the file you choose. It is not sent anywhere.
2. The first time you use AI cutout, the browser downloads the model file (about 15 MB) from this site and stores it in its own cache.
3. Each frame is decoded, matted and composited in a background thread on your device, then encoded into the new video.
4. The finished file is created in your browser's memory and saved when you click Download.

Because of this, the speed depends on your computer. A recent graphics card is fastest; without WebGPU the model runs on the processor and takes longer. The page shows the real speed while it works.

Limits worth knowing

• The AI is trained on people. It is not designed to cut out cars, products or animals on their own; use a green screen and the color key for those.
• The finished video is held in memory until you download it, so very long, high-resolution clips need a computer with plenty of RAM.
• MP4 cannot store transparency, so transparent output is WebM. Safari does not display WebM transparency.
• Your browser must support WebCodecs. Recent versions of Chrome, Edge, Firefox and Safari do.

How VideoBackgroundRemover.dev is funded

The tools are free. The site may show advertising to cover hosting and development. Ads never have access to your videos, because your videos never leave your device.

Contact

Found a bug, a video that does not load, or a result that looks wrong? Email us. Please include your browser, operating system, the video format and resolution, and a short description of what happened. We read every message, and reports of real problems help improve the tool for everyone.