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Replace Characters in Videos

Replace a person in a video while preserving the original motion, expressions, and scene.

Character targeting

Choose which characters should be replaced.

Target characters

Masking prompt (optional)

Leave empty to target all detectable characters in the selected group.0/500

Character Replacement Video · Video · 1 🪙 per 5s

Prompt guidance

Keep the tested defaults unless you want to guide a difficult video differently.

Positive prompt

76/2000

Negative prompt

137/2000

Generation steps · 6

More steps take longer. Six is recommended while quality is being evaluated.

Processing frame rate

Lower frame rates reduce Wan generation time.

Processing segment length

Short · 77 frames · about 6.4s

Lowest memory

Longer segments may reduce visible seams, but require more GPU memory and may fail on complex videos. Short is recommended while this tool is being benchmarked.

Target video

MP4, WebM, and MOV · Up to 60s · HD

Reference character

Use a clear image showing the character's face and body.

How it works

video_library

Step 1

Upload the video containing the character

accessibility_new

Step 2

Add a clear reference character image

auto_awesome

Step 3

Choose who to target and generate