
One photo of an evening you liked
The group shot where the angle was unkind. A small reshape is usually the difference between deleting it and keeping it.
Your own photo · A modest change · Face and background untouched
"Make me look thinner" is typed in the first person, so this page answers a person rather than a use case. The tool does a modest reshape well. It does not do a different body, and it should not pretend otherwise.
A run we did on this page. The location was chosen to be difficult: a panelled door, wall panelling, a skirting board and a window reveal all sit directly behind the outline that moves. Drag the divider and check those edges before you look at the body. One honest note about the pair — the editor returns its own framing, so the before frame is cropped to match the after. Every output is AI-generated, so treat this as what the tool does rather than a result you will get back identically.


Drag to compare before and after
Three things move, and a fourth one has to be rebuilt because they moved.
A body reshape narrows the silhouette through the waist and torso, refines the upper arms, and softens the line under the chin. Doing that leaves a gap between the old outline and the new one, and the wall, floor or furniture behind has to be reconstructed to fill it — which is where these edits usually fail, in bent doorframes and smeared tiles rather than in the body itself.
Clothing has to follow too: folds, seams, hems and any pattern all have to land on the new shape. Two things worth saying plainly. This is a photo edit, not a health tool, and it does not know anything about you. And it works on photographs of a person who agreed to be photographed — running it on someone else's picture is not something a filter makes fine.
Creative engine
Upload a photo, keep the default prompt, then compare the two at full size.

Before you use a result, look at the vertical edge nearest the outline that moved — a doorframe, a wall panel, a window reveal. If it bows, the edit is not usable no matter how good the body looks.

"Modest and physically plausible" produces something you can post. Asking for a dramatic change produces a picture of somebody else, and everybody who knows you can see it.
The prompt does the work. The judgement is yours, in both directions.
Even light, a clear gap between you and the background, no arm crossing the torso. A cluttered or heavily patterned background is what produces smearing, because it is harder to rebuild.

The default prompt says modest and physically plausible, and that wording is doing real work. Removing it is how you get a waist narrower than the ribcage above it.
Vertical edges near the outline first, then the hands and the hem of the top. Those three catch nearly every bad result, and all three are invisible at thumbnail size.
Sometimes the honest answer is the original. Nobody needs a filter's permission to post a photo of themselves, and a page selling this should be willing to say so.

Four situations, all of them one photo rather than a whole camera roll.

The group shot where the angle was unkind. A small reshape is usually the difference between deleting it and keeping it.

A dating or professional profile where you get one frame. Pair it with a cleaner outfit or a better background rather than stacking three body edits on the same shot.
Not a fitting tool and not a promise, but a rough sense of a silhouette. Treat the output as a sketch, not a measurement.
Wide phone lenses at close range genuinely distort a body outward at the edges of the frame. Correcting that is not vanity, it is undoing the camera.
Including the two questions a page like this usually skips.
That is the point, and it is the thing to check. Every prompt here pins the face — features, expression, skin texture, stubble, hair — so only the silhouette moves. If the person in the result reads as someone else, the change was too large; run it again asking for less.
A modest amount, believably. Push it further and the picture starts failing in ways everybody notices before they notice the body: a waist narrower than the ribcage, arms that no longer match the hands, a bent doorframe. The tool will oblige a big request, and the result is not usable.
On your own photo, it is your call and nobody else's — this is retouching, and people have been doing it since photographs existed. On somebody else's body, no. Editing another person's shape and passing it around is not made acceptable by the fact that a tool did it.
Because reshaping an outline means rebuilding what was behind it, and a busy or high-contrast background is hard to rebuild. Rerun and name what should be there — "keep the white panelled door and skirting straight" — or start from a photo with a simpler wall behind you.
Yes to both, with a caveat on each. Full-body shots are the easier case as long as the whole figure is in frame. In a group photo, name which person to adjust and say the others stay exactly as photographed, or it will make its own choice.
It goes over HTTPS, lands in your own history and nowhere else. It is not used to advertise and it is not shown to anyone. Delete it and both the original and the reshaped version go — which matters more here than on most tools, because the file is a photograph of your body.
Credits are shared across everything Kavel runs. You see the cost before each run, and a failed job is never charged.
What's included
Secure checkout by Stripe. Card details never touch our servers.
What's included
Secure checkout by Stripe. Card details never touch our servers.
What's included
Secure checkout by Stripe. Card details never touch our servers.
What's included
Secure checkout by Stripe. Card details never touch our servers.
Charges appear as “KAVEL AI” on your card statement. You can cancel any time from Settings → Billing; cancellation takes effect at the end of the period you already paid for. Operator details, the full model list, and the refund window are on the about page.
Upload a shot taken straight on, keep the change small, and check the straight lines behind you — or change the outfit instead.