Question 1

How does the video background remover work?

Accepted Answer

Your video runs through an AI matting model directly in your browser. Every frame is analyzed, the subject is separated from the background, and the result is exported as a transparent WebM file — no server upload required.

Question 2

Is it really free?

Accepted Answer

Yes. AIXTools Video Background Remover is 100% free with no signup, no watermarks, and no duration limits. Because processing happens on your device, there are no server costs to pass on.

Question 3

Why WebM and not MP4?

Accepted Answer

MP4 (H.264/H.265) does not support transparency. WebM with VP9 does, so the only way to deliver a truly transparent video is WebM. Every major editor — Premiere, After Effects, CapCut, DaVinci — imports transparent WebM natively.

Question 4

How do I use a transparent video?

Accepted Answer

Drop the exported WebM into your editor timeline over any background clip, image, or color. The subject stays visible while the checkerboard area becomes see-through.

Question 5

Are my videos uploaded to your servers?

Accepted Answer

No. The entire pipeline (model + rendering) runs in your browser using WebAssembly. Your video never leaves your device — full privacy by design.

Question 6

How long can the video be?

Accepted Answer

There is no fixed limit. Longer or higher-resolution videos take more time and memory, but AIXTools will process them as long as your device has RAM. For most laptops, 1–3 minutes at 1080p is comfortable.

Question 7

Which AI models are used?

Accepted Answer

AIXTools tries MODNet first, then falls back to RMBG-1.4 and finally Google's MediaPipe Selfie Segmentation, picking whichever loads and runs best on your device.

Question 8

Does it work on mobile?

Accepted Answer

Yes on modern Android Chrome and iOS Safari, but performance is best on desktop. Long videos on a phone can be slow or run out of memory.