01
Product swaps in finished footage
Keep the set, the lighting, and the camera move, and replace the object with the SKU that actually shipped. One clip can then cover a whole catalogue.
Video to Video, Free:Edit and Extend in 1080P
Bring a clip you already have and change what is inside it. Swap a product, restyle the scene, or keep the shot running past where it stopped, with no queue and no watermark on the download. New accounts start with free credits.
Real output
Same shot, different product
One clip went in as the source and one still went in as the replacement reference. A single sentence of instruction produced the result: same camera, same lighting, new object.
Prompt
Change the perfume in the video gift box to the face cream from the image.
Source clip, plus the reference still that replaces the product.
Input video
Reference image
Result
Seedance output, watermark-free.
Use cases
What an existing clip becomes
Video to video is the mode for footage that is almost right: the shot works, but something inside it has to change.
02
Restyle without a reshoot
Push the same take into a different look, season, palette, or era while the blocking and the timing stay exactly where they were.
03
Extend a shot that ended too early
Continue a clip past its last frame when the edit needs one more beat and the original footage is long gone.
04
Localized fixes
Change one region of the frame, such as a label, a sign, or a garment, and leave everything around it untouched.
How it works
How video to video works here
Attach the clip and the composer switches itself. Adding a still alongside it turns the pair into a reference group.
01
Attach the source clip
One video per generation is the maximum. Anything added next, such as a still or another reference, joins it as reference material rather than replacing it.
02
Write the change, not the scene
Say what should be different. Replace the perfume in the gift box with the cream from the image is the shape that works; a full scene description fights the source.
03
Generate and compare
The result lands next to the original in your asset library, watermark-free, so you can judge the swap frame by frame.
Questions
Video to video questions
- What can I send in?
- One video per generation, plus stills as references. Short clips read best, because the longer the source runs the more the model has to hold consistent. Only upload footage you have the right to use.
- Is it free, and is there a watermark?
- New accounts start with free credits and no card, and nothing rendered here carries a watermark.
- Which model handles editing and extending?
- Seedance 2.5 is the one built for it: up to 30 seconds, up to 50 multimodal references, and localized editing that changes one region instead of the whole frame.
- Do I pick edit or extend somewhere?
- No. The instruction decides. Asking for a replacement runs an edit, asking for what happens next runs an extension, and there is no mode selector in between.
Keep going
Where to go next
A clip is one of three ways in. Pick the entry that matches what you already have.
Free credits
Change the shot you already have
Attach a clip, describe the one thing that should be different, and download the result without a watermark. Free credits on a new account.
Edit a video