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No editing software, no account required for a first try. Here's exactly what to upload, the steps in order, and the mistakes that quietly wreck most first attempts.
Two files, that's it: one photo and one clip. The quality of these two decides the quality of the result more than anything else in the process.
Sharp, well-lit, face pointed mostly toward the camera. No sunglasses, no hair across the face, no heavy shadow on one side.
Pick one from the built-in library or upload your own. Static, webcam-style clips give the cleanest results, more on why below.
No account needed to run your first swap. You only need to register if you want to save your history.
This is the face that gets applied. The sharper and better-lit it is, the less work the AI has to do to make it convincing.
Browse the library for something with a clear, mostly-still face, or upload your own MP4 clip.
Processing time depends on video length, a short clip typically renders in a few minutes.
Check the result before saving it. If something looks off, it's almost always the source photo. Swap it out and regenerate rather than settling.
The person sits mostly still with their face front and center. That's the easiest case for the model to handle cleanly.
Fast motion, dancing, or quick head turns give the AI less time per frame to track the face, expect more glitches.
Consistent light and an uncluttered background reduce weird artifacts around the edges of the face.
The model can't reconstruct detail that isn't there. A soft or pixelated photo produces a soft, wrong-looking swap.
A face looking straight at the camera swapped onto a three-quarter turn rarely blends convincingly. Keep angles close.
Harsh flash on the photo, soft light in the video (or the reverse) creates a visible seam around the face.
Sunglasses, hair, a raised hand, anything blocking part of the face gives the model less to work with.
Complex scenes make it harder for the model to isolate the face cleanly from what's around it.
Swapping the face and pushing every other setting at the same time makes it hard to tell what actually caused a bad result. Change one thing, regenerate, compare.
Once the basics are dialed in, these are the details that separate an obviously-swapped face from one that holds up on a second look.
A straight-on crop with the face centered gives the model a cleaner reference than an awkwardly cropped photo.
Small blemishes or artifacts in the original photo tend to get exaggerated during the swap. A quick retouch beforehand helps.
If the result looks off, it's rarely worth manually patching. A different source photo usually fixes it faster than editing the output.
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