Video Background Changer
Swap the background behind a person in any video.
✓ Free · No sign-up · No watermark · Files stay on your device
This tool runs the AI on every frame in real time. Keep the tab open until it finishes.
How it works
1Choose a video with a person in it.
2Pick the new background.
3Press Start and keep the tab open. Processing runs in real time.
Questions
Can I use my own image?
Yes. Choose Custom image and pick a photo to put behind the person.
Why is it slow?
The AI runs on every frame in real time, so a 1-minute clip takes about a minute. Using Chrome on a laptop gives the best speed.