Video Background Changer

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AI Video Background Changer

Upload a short video and describe the background you want. The clip is transformed by Kling O3, which follows your instruction instead of cutting the subject out.

Need a still photo instead? Remove a person or object from a picture with the AI object remover.

Use only footage you own or have permission to edit, and do not use edited video to mislead people about where or when something happened.

Kling O3

90 credits estimated

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Video
Model

Mode

0/3072
Reference images(0/4)

Up to 4 images. 50MB per image; Files are uploaded privately.

Duration is verified after upload. Reference limits are checked before charging.

Settings Adjust output

Aspect ratio

Resolution

Duration (seconds)

Audio

Plan multiple shots

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Generated result

Your current task and finished media appear here.

Video
Kling O3: supported inputs and settings

text to video

  • Aspect ratio: 16:9, 9:16, 1:1
  • Resolution: 720p, 1080p, 4k
  • Duration (seconds): 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
  • Audio: Disabled, Enabled
  • Plan multiple shots: Disabled, Enabled

image to video

  • Frames (first, then last) (required): Up to 2 images. 50MB per image; Files are uploaded privately.
  • Aspect ratio: 16:9, 9:16, 1:1
  • Resolution: 720p, 1080p, 4k
  • Duration (seconds): 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
  • Audio: Disabled, Enabled
  • Plan multiple shots: Disabled, Enabled

reference to video

  • Reference images (optional): Up to 7 images. 50MB per image; Files are uploaded privately.
  • Reference video 1 (optional): Duration is verified after upload. Reference limits are checked before charging.
  • Aspect ratio: 16:9, 9:16, 1:1
  • Resolution: 720p, 1080p, 4k
  • Duration (seconds): 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
  • Audio: Disabled, Enabled
  • Plan multiple shots: Disabled, Enabled

video to video

  • Reference images (optional): Up to 4 images. 50MB per image; Files are uploaded privately.
  • Reference video 1 (required): Duration is verified after upload. Reference limits are checked before charging.
  • Aspect ratio: 16:9, 9:16, 1:1
  • Resolution: 720p, 1080p, 4k
  • Duration (seconds): 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
  • Audio: Disabled, Enabled
  • Plan multiple shots: Disabled, Enabled
Input
One MP4 or MOV video of 3 to 15.5 seconds, a prompt that names the new background, and up to four optional reference images.
Output
A newly generated video based on your clip, with the background changed as your prompt describes and the subject and movement kept as closely as the model can.

Background change ideas and ready-made prompts

9 original prompts for the Transformation workspace on this page. Each one says what must stay the same, then describes only the new background. Copy a prompt, or choose Use this prompt to load it into the editor above, then add your video.

Clean and studio backgrounds

Plain, quiet backgrounds that suit talking-head clips, product demos and profile videos.

Plain white studio

A seamless white backdrop with soft, even light.

Keep the same person or subject, their face, clothing, body movement and timing, and the camera movement of the source video exactly the same. Change only the background behind the subject. Replace it with a seamless white photography studio backdrop, softly and evenly lit, with a subtle floor shadow under the subject. Match the lighting on the subject to the new background. Do not add text, logos or watermarks.

Works best when the subject stands apart from the wall.

Soft grey gradient

A neutral gradient that keeps attention on the speaker.

Keep the same person or subject, their face, clothing, body movement and timing, and the camera movement of the source video exactly the same. Change only the background behind the subject. Replace it with a smooth, dark-to-light grey gradient backdrop with no objects, like a professional interview set. Match the lighting on the subject to the new background. Do not add text, logos or watermarks.

Bright modern office

A softly blurred office behind a presenter.

Keep the same person or subject, their face, clothing, body movement and timing, and the camera movement of the source video exactly the same. Change only the background behind the subject. Replace it with a bright, modern open-plan office with large windows, softly out of focus, in daylight. Match the lighting on the subject to the new background. Do not add text, logos or watermarks.

Real-world places

Locations for travel, lifestyle and social clips. Name the place, the time of day and the mood.

Tropical beach at golden hour

Warm sand, gentle waves and low sun.

Keep the same person or subject, their face, clothing, body movement and timing, and the camera movement of the source video exactly the same. Change only the background behind the subject. Replace it with a tropical beach at golden hour, with gentle waves rolling in, warm low sunlight and a few palm trees in the distance. Match the lighting on the subject to the new background. Do not add text, logos or watermarks.

City street at night

Neon signs and soft street lights behind the subject.

Keep the same person or subject, their face, clothing, body movement and timing, and the camera movement of the source video exactly the same. Change only the background behind the subject. Replace it with a busy city street at night, with glowing shop signs and street lights as softly blurred bokeh, and a light drizzle in the air. Match the lighting on the subject to the new background. Do not add text, logos or watermarks.

Mountain trail in the morning

Open sky, pine trees and cool morning light.

Keep the same person or subject, their face, clothing, body movement and timing, and the camera movement of the source video exactly the same. Change only the background behind the subject. Replace it with a mountain hiking trail in the early morning, with pine trees, distant peaks and cool, clear light. Match the lighting on the subject to the new background. Do not add text, logos or watermarks.

Creative backgrounds

Stylized settings for short videos, music clips and social posts.

Window onto space

A starfield and a distant planet.

Keep the same person or subject, their face, clothing, body movement and timing, and the camera movement of the source video exactly the same. Change only the background behind the subject. Replace it with a view of deep space, with a dense starfield, a softly glowing nebula and a large planet low on the horizon. Match the lighting on the subject to the new background. Do not add text, logos or watermarks.

Neon-lit room

Pink and blue light on a dark wall.

Keep the same person or subject, their face, clothing, body movement and timing, and the camera movement of the source video exactly the same. Change only the background behind the subject. Replace it with a dark room lit by pink and blue neon tubes on the wall, with a faint haze in the air. Match the lighting on the subject to the new background. Do not add text, logos or watermarks.

Painted garden

A soft, painterly garden behind a live subject.

Keep the same person or subject, their face, clothing, body movement and timing, and the camera movement of the source video exactly the same. Change only the background behind the subject. Replace it with a lush garden in a soft watercolor painting style, with loose flowers and green leaves, while the subject stays realistic. Match the lighting on the subject to the new background. Do not add text, logos or watermarks.

Examples made with this tool are coming soon.

For now, the gallery shows creative references and sample inputs, not results made with this tool.

Example 01

A talking-head clip on a clean backdrop

Swap a cluttered room for a plain studio or office background so the speaker stands out.

Input:
One short MP4 or MOV clip
Settings:
Transformation, 720p, prompt names a plain white studio

Example 02

A lifestyle clip in a new place

Place a person walking or talking in front of a beach, street or mountain trail, and ask the model to match the light.

Input:
One short clip and an optional background reference image
Settings:
Transformation, 720p or 1080p

Example 03

A product demo with a simple setting

Move a hand-held product demo to a neutral gradient backdrop, and check logos and labels at full size afterwards.

Input:
One short product clip
Settings:
Transformation, 1080p

How to Change a Video Background with AI

  1. 01

    Add your video

    Upload one MP4 or MOV of 3 to 15.5 seconds. The workspace opens in Transformation mode, which takes exactly one source video and up to four reference images.

  2. 02

    Describe the new background

    Say what must stay the same, such as the person, clothing and movement, and then describe only the background. Pick one of the prompts below, or write your own. A reference image can show the look you want.

  3. 03

    Check the price and create

    The credit price is shown before you start. A source video with no reference images at 720p costs 60 credits for 3 seconds, 100 for 5 seconds and 300 for 15 seconds.

When a background change helps

Talking-head and course videos

Replace a busy room with a plain or office backdrop for a lesson, a pitch or an update.

Social and short-form clips

Put the same clip in a beach, city or studio setting to try several looks before you post.

Product and demo clips

Test a neutral background behind a product demo. Check labels and logos at full size before you use the result.

Concept and mood tests

Try a creative background such as neon light or space before you commit to a reshoot or an edit.

Video requirements and what to expect

What your video and prompt need

A short, steady source clip

Use MP4 or MOV of 3 to 15.5 seconds, 24 to 60 fps, 700 to 4553 px per side and no more than 8.29 MP, with an aspect ratio from 0.4 to 2.

A clear subject

Clips where the subject is well lit and separate from the background give the model the clearest edges to keep.

A prompt that protects the subject

Start with what must stay the same, then describe only the new background and the light it should have.

Limits, price and sound

Prompt-directed, not a cut-out

This is not a green-screen or matte tool. Kling O3 regenerates the clip from your instruction, so the subject, hair edges, hands and small details can drift. Review the result frame by frame before you publish it.

Results vary

The same prompt can give different results on different clips. Try again, or adjust the prompt, if the subject changes or the background flickers.

Credits depend on length and resolution

At 720p with no reference images, 100 credits for 5 seconds. At 1080p, 5 seconds is 135 credits. The workspace shows the exact credits before you confirm. A new account gets 3 welcome credits, which do not cover a video.

Do not count on the original sound

The result is a newly generated video. Add your own audio in an editor afterwards if the sound matters.

Video Background Changer vs other VibeAha tools

OptionBest forKey difference
Video Background ChangerChanging the background of a short clip from a written instructionIt opens Kling O3 Transformation for you, with background prompts ready to use.
Kling O3Every Kling O3 mode, including text and image to videoThe general workspace with four modes. This page opens only the source-video mode.
Video Watermark RemoverTaking a watermark or logo out of a videoIt removes a mark and keeps the clip, while this page rebuilds the background from a prompt.

Video Background Changer FAQs