
Before you commit to growing it
Growing hair out takes one to three years, and most people quit in the awkward middle. Seeing the destination makes the middle easier to sit through.
One photo in · Length and texture change · Nothing to install
Find out what you would look like with long hair before you spend two years growing it. One photo, same face, new length.
A real length change, produced on this page’s model. Drag the divider: the same woman, the same cream top, the same grey studio backdrop and the same expression — the pixie cut has become dark waves well below the shoulders, with the parting and the shadows on the shoulders rendered to match. Every output is AI-generated, so your own result varies with the photo you upload — read this as a guide to what the tool does, not a fixed result you will get back.


Drag to compare before and after
It answers a question that is otherwise expensive to answer: what would I look like with long hair? Growing it out takes one to three years depending on where you are starting from, and the awkward middle is the part people quit during — so seeing the destination first is worth a lot.
Upload a photo and the same person comes back with hair grown well past the shoulders, with realistic volume, a natural parting, individual strands and soft shadows where the hair rests. What must not move is everything else. The face, the skin tone, the expression, the clothes, the pose, the lighting and the background all carry over, because a preview is only useful if the length is the only thing that changed — if the face shifts too, you are looking at a stranger with nice hair and it tells you nothing about whether to grow yours out.
Creative engine
Upload a photo, say how long and what texture, pick the format, and the credit estimate updates before you generate.

The length is grown on your own face rather than shown to you on somebody else. That sounds obvious and it is the thing most hairstyle apps quietly do not do, which is why their previews never quite answer the question you had.

Real volume, a parting that makes sense for your hairline, and strand detail — not a wig shape pasted over the head. Look at where the hair meets the shoulder: a pasted shape floats, grown hair casts a shadow and follows the fabric.
Renders real volume, parting and strand detail instead of pasting a wig shape over the head. This is the patient version of the idea — the bald filter goes the other way on the same photo, and the hair growth clip turns the change into video.
From one photo to a believable preview, with the cost shown before you commit.
Face the camera in even light with your whole head and shoulders in frame. Hair pushed back off the face gives the model a clean hairline to build from.

Mid-back, past the shoulders, collarbone length — and add the texture, because straight, wavy and curly at the same length look like three different people.
Generate, then judge the length against the photo you started from. A failed run is refunded (unless it broke the content policy), so you only spend credits on the lengths that actually come back.

Growing it out, cutting it off, or settling an argument about which suits you.

Growing hair out takes one to three years, and most people quit in the awkward middle. Seeing the destination makes the middle easier to sit through.

Bring a picture of the length on your own face instead of a photo of someone else, so you are both discussing the same outcome.
Going the other way is instant and irreversible. Seeing your face with the length you are about to lose is a cheap second opinion.
Common questions about previewing extra length on your own photo with Kavel.
It does, and that is the honest answer to what people are really asking. The face itself is meant to carry over unchanged and on a clear straight-on photo it does — but a length past the shoulders covers the jawline and narrows the visible outline of the head, so the same face can look longer or softer than you are used to. If the preview feels subtly off, that framing effect is almost always the reason rather than the model having altered your features, and it is genuinely what the length would do to you.
Yes, but with a caveat worth knowing. The shorter your hair now, the more the model is inventing rather than extending — from a buzz cut it has almost nothing to work from except your hairline and hair colour. The preview is still useful as a shape and a colour test; just do not read it as a prediction of exactly how your hair will fall.
Yes, and you should. Say collarbone, past the shoulders or mid-back rather than just longer, and name the texture — straight, wavy, curly, coily — because the same length reads completely differently across textures. Adding your natural texture rather than the one you wish you had gives the more honest preview.
No. Those overlay a fixed hair shape onto your head, which is why they slip when you turn and why the hair never quite sits on your shoulders. Here the hair is rendered into the photograph with its own volume, parting and shadows, so it belongs to the picture rather than floating over it.
You can, but do it as a second run. Changing two variables at once makes the preview hard to judge — you will not know whether it is the length or the colour you are reacting to. Get the length right first, then change the colour on top of it.
Scalp hair grows roughly half an inch a month for most people, so going from a short cut to past the shoulders is commonly a two to three year project, and collarbone length around one to two. That range is exactly why previewing is worth a minute: the decision you are making is a multi-year one.
The estimate moves with the format and resolution you pick, so the cost is visible first. Failed runs are refunded automatically (unless it broke the content policy), and new accounts start with free credits — enough to compare two lengths before spending anything.
Only with their agreement. Editing someone's appearance and sharing the result without asking is not a use we want to see, and depending on where you are it can carry real legal weight. Your own face is always fine, whatever the style.
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.
Pay safely and securely with
Payments are processed by Stripe over an encrypted checkout. Your card details are handled by Stripe and are never stored by Kavel.
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.
Two years of growing it out, answered in a few seconds. Same face, same photo, new length.