Free AI Character Swap
Drop any character — a mascot, a knight, or you — into a video with a single photo. LazyKiwi replaces the whole person, not just the face, and keeps every move exactly as filmed.
What is AI character swap?
AI character swap, also called an AI body swap, replaces the whole person in a video with the character from one photo: face, hair, build and outfit all change, while the moves, timing and camera stay as filmed. On LazyKiwi you upload the clip, add the photo and download the swapped MP4. Every person in the clip is detected and numbered, so you choose who is replaced, and you can swap several people one after another. It is free to try, and the price is on the button before you generate. Need more edits on the same clip? The AI video editor has captions, object removal and more.
Specs
AI character swap specs: what goes in, what comes out
- Inputs
One video clip + one photo of the character
MP4 or MOV; a front-facing, full-body photo works best
- Clip length
Long clips supported
up to 500 MB per file
- Output
MP4 at 480p, 720p or 1080p
download straight from the workbench
- Keeps
Motion, timing, camera and background
and everyone you did not select
How to swap a character in a video — 3 steps
Two uploads and a click. No masks, no keyframes — pick the person, add the photo, and the swap renders while you carry on.
Step 1
Upload a clip or pick a sample
Any clip with a person in it. Start from one of the sample clips if you just want to see how it works.
Step 2
Upload one photo of the character
A front-facing photo works best — a mascot, an illustration, or a real person you have permission to use.
Step 3
Download your swapped video
The whole person is replaced while the moves, timing and camera stay as filmed. Download it from the workbench.
One clip, one photo
A clip and a single photo of the character. No masks, no keyframes, no second reference.
- Clip: MP4 or MOV
- Character: one front-facing photo
- Or start from a sample clip
You choose who gets replaced
Everyone in the clip is numbered first, so the swap lands on the right person.
- Auto replaces the first person found
- Select person: pick who gets swapped
- The scan is free; only the swap costs credits
Whole body, not just the face
Face, hair, build and outfit all come from your photo — a mascot, an illustrated hero, or a real person.
- Face, hair, build and outfit replaced
- Illustrated or photographed characters
- Pose and proportions follow the clip
Motion, timing and camera kept
The swap follows every frame of the original, so the performance and the camera move are exactly as filmed.
- Same moves, same timing
- Camera move and background untouched
- Price shown on the button before you confirm
AI body swap: the whole person, not just the face
A face swap changes the face and keeps the original body, hair and clothes. A body swap replaces the whole person with the character in your photo, while the pose and every move still come from your clip. If you only want a new face, use the video face swap instead.
- Face, hair, build and outfit from your photo
- Pose and motion from your clip
- Mascots, illustrations or real people
Replace a person in a video, keep everything else
Upload the clip and one photo. Every person in the shot is detected and numbered, so you pick exactly who is replaced; to swap more than one, run the result again and pick the next person. Everyone else, the background and the camera move stay exactly as filmed.
- Detects every person in the clip
- Pick one or swap several, one after another
- Background and camera untouched
Hotel Lobby character swap
Made your own Hotel Lobby take? Swap yourself for any character from one photo: in this example a rapper in a hotel lobby becomes a kiwi mascot, with the same moves and the same camera push. For the orange-booth duet from the Migos AI trend, the Hotel Lobby AI template builds the whole scene from two photos.
- Your clip: one photo, the whole person swapped
- Same lobby, same moves, same camera
- Duet version: the Hotel Lobby AI template
Compared
AI character swap: LazyKiwi vs Viggle, Magic Hour and Runway
Looking for a Viggle or Magic Hour alternative? Here is how LazyKiwi Character Swap compares, from each tool's own pages.
| LazyKiwi Character Swap | Viggle AI Body Swap | Magic Hour Character Replace | Runway Edit Studio | |
|---|---|---|---|---|
| Whole person, not just the face | ✓Face, hair, build, outfit | ✓Face, body, skin tone, clothing | ✓The person or character | ✓Characters, products, backgrounds |
| Detects everyone in the clip automatically | ✓Every person is found and numbered | Not published | Not published | ✕Prompt-driven, no detection |
| Pick exactly who gets replaced | ✓Any person; swap several one after another | ✓Up to 7 in the Multi-Track editor | Not published | Not published |
| Multi-person scenes | ✓Supported | ✓Up to 7 in the Multi-Track editor | Not published | Not published |
| Keeps original motion, timing and camera | ✓Exactly as filmed | ✓Motion from the clip | ✓Uses the source scene as a guide | Not published |
| Long clips | ✓Long clips supported | 1 min free, 10 min on paid plans | Not published | 2–30 s |
| Replace or Animate modes | ✓Both | Not published | ✓Both | ✕Prompt edits only |
| Free to try | ✓Free to try | ✓Free to try | ✓Free to try | ✓Free to try (watermarked) |
| Price shown before you generate | ✓On the button | Not published | Not published | ✓Credit table in the help centre |
| Sources | Workbench read 29 Oct 2026 | Body swap page Pricing read 29 Oct 2026 | Product page read 29 Oct 2026 | Help centre Pricing read 13 Oct 2026 |
Competitor details change; check the linked pages first.
FAQ
AI character swap FAQ
Is the AI character swap video tool free?+
Signing up is free and comes with free credits to try it; every run shows its exact price on the Generate button before anything is charged. Scanning the clip to pick the person is free, and the free credits cover a first try.
How do I swap a character in a video?+
Upload an MP4 or MOV and one photo of the character. Press Select person to choose who is replaced, pick 480p, 720p or 1080p, and generate. The swapped MP4 is ready to download in a few minutes.
What is the difference between character swap, body swap and face swap?+
A face swap changes only the face and keeps the original body, hair and clothing. A character swap — often called a full body swap — replaces the whole person with the character from your photo while keeping the original motion. If you only want a new head, see head swap; to dress the same person in new clothes instead, try the AI clothes changer.
What is an AI body swap?+
An AI body swap replaces the whole person in a video (face, hair, body and clothes) with the character from one photo, while the original motion stays. It is the same thing as a character swap. A face swap changes only the face.
How do I replace a person in a video?+
Upload the clip, add one photo of the new character and generate. If more than one person is in the shot, choose who is replaced; the other people, the background and the camera move stay as filmed.
Can I swap more than one person?+
Yes. Every person in the clip is detected and numbered. Each run replaces the person you pick; to swap a second one, run the swapped video through Character Swap again and pick the next person. Everyone you do not pick stays exactly as filmed.
Can I do a Hotel Lobby character swap?+
Yes, two ways. The Hotel Lobby AI template builds the orange booth duet from two photos, with no clip needed. If you filmed your own version, upload it here with one photo to swap the person in it. Only use footage and photos you have the rights to.
Is LazyKiwi a good Viggle alternative?+
If you want a full body swap from one photo, yes. Viggle AI Body Swap and LazyKiwi both replace the whole person and keep the motion. LazyKiwi also has an Animate mode, works in the browser with nothing to install, and shows the exact price on the button before you generate.
How does it compare with Magic Hour Character Replace?+
Both take a video and one reference image and offer Replace and Animate modes. LazyKiwi also handles clips with several people, letting you choose who is replaced, and shows the price before you generate. The comparison table above lists the details from each tool's own page.
What if there are two people in the video?+
Press Select person. The clip is scanned, each person is outlined and numbered, and you choose which one is replaced. The other person is left exactly as filmed. To swap both, run the result through the tool again.
Clip length and output resolution?+
Short clips render fastest; longer clips are supported. You choose the output — 480p, 720p or 1080p — before generating, and the credit price on the button changes with the resolution and the length.
Is it safe, and can I swap in a real person?+
Only use footage you filmed and characters you own or have written permission to use; do not use it to impersonate anyone. Uploads are processed securely, never sold and never published by us.
Do I need to mask or rotoscope anything?+
No. Upload the clip and the photo, pick the person if there is more than one, and generate — the body swap handles the tracking and the blending. If you want to restyle the whole clip rather than one person, video to video re-renders every frame in a new look.
Does the background change?+
No. Only the chosen person is replaced; the background, other people and the camera move stay as filmed. To change the scene behind the person instead, use the video background changer, or add an object to the video without touching anyone in it.
How are the free credits counted?+
New accounts get free credits. A swap is billed by the length of the clip and the resolution you pick, and the exact total is shown on the Generate button before you confirm.
How do I download the result, and can I use it commercially?+
When the render finishes the clip plays in the workbench; download it as an MP4 from there. You can publish it if you hold the rights to the clip and the photo — check whether the platform asks you to label AI-edited video.
More AI video tools
One photo. Any clip. The whole person swapped.
Upload a clip and one photo, pick the person, download at up to 1080p.
Free to try · Price shown before you generate · Renders in minutes