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AI Muscle Generator Add muscle to a photo

Upload one photo and get the same picture with more muscle — your face, clothes, pose and background stay exactly as they were. Your first five edits are free after you follow us.

Your photoArms and shoulders visible works best. For abs, use a tight-fitting top or a shirtless shot — see the note below. JPG, PNG or WebP
Build
Add the Muscle

Follow us and get 20 free credits — about 5 images

For photos of yourself or people who agreed to appear.

After: the same AI-generated fictional man with noticeably bigger arms, shoulders and chest — face, tank top, phone, gym and lighting unchangedBefore: an AI-generated fictional man in a grey tank top taking a gym mirror selfie, slim build with thin armsBeforeAfter

Real model output on an AI-generated fictional person — drag the handle to compare.

One photo, every build

The pills are genuinely different results rather than one result at three strengths. All of these came from the same uploaded photo of an AI-generated fictional person. At 4 credits a run, trying two and keeping the better one is the intended way to use this page.

Before the muscle edit: an AI-generated fictional man with a slim build taking a gym mirror selfie

Before

The uploaded photo: slim build, thin arms, loose grey tank top.

The toned build: slightly more defined arms and shoulders, silhouette almost unchanged

Toned

Adds definition without changing the silhouette much — the one most people actually want.

The athletic build: bigger arms, shoulders and chest on the same photo

Athletic

The default, and the most convincing: noticeably bigger arms and shoulders, a defined chest.

The bodybuilder build: thick arms and shoulders, a broad chest on the same photo

Bodybuilder

Deliberately over the top — it reads as an edit, which is fine when the edit is the joke.

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Photos the AI muscle generator works on

Which photo you upload decides where the muscle lands. Both rows are real output on AI-generated fictional people.

Add muscle to a gym selfie

Arms, shoulders and chest fill out and the sleeves drape differently, which reads correctly. Note the stomach: asked for definition, the model treats the midsection as visible skin, so on a loose tank top it draws the abs through the fabric.

Before and after on a loose grey tank top: bigger arms and shoulders on the right, with abdominal definition visible through the fabric

Six-pack on a shirtless photo

Give the model skin to work with and the definition lands where it belongs, with no fabric artefact. Face, hair, watch, gym background and the direction of the light all came back unchanged — that fidelity is the product.

Before and after on a shirtless photo: defined chest and six-pack rendered on skin, with the face, gym and lighting unchanged
Add the Muscle

Why make it here

What the account behind this page gets you, beyond this one tool.

Pay per edit

No subscription to start. Following us earns 20 credits and an edit here spends 4 of them.

Credits go everywhere

The same balance runs every tool and every model on the account — nothing is ring-fenced to this page.

The full model lineup

Nano Banana 2 and Pro, GPT Image 2, Midjourney V7, Seedream and Grok Image, on one account.

Stills and video, same place

The edited photo can go straight into a video tool without leaving the account or paying twice.

Add the Muscle

How to add muscle to a photo

Upload one photo, pick how much muscle you want, and this AI muscle generator returns the same picture with a bigger build — arms, shoulders and chest reshaped while your face, clothing, pose, background and lighting stay exactly as they were. It takes a few seconds. Following us on X and YouTube earns 20 free credits and an edit here costs 4, so your first five are free.

Want the change to show in your abs? Read which photo to upload

Add muscle to a photo in three steps

One photo, one pill, one button. The picture you get back is the picture you uploaded, edited.

  1. Step 1

    Upload a photo

    Arms and torso visible, reasonably lit, the person large enough in frame to see. A full-length shot from across a room leaves little to reshape.

  2. Step 2

    Pick the build

    Toned, athletic or bodybuilder. The pill is the whole instruction — there is nothing to write, and the rules that keep your face intact are applied either way.

  3. Step 3

    Generate and compare

    The edit comes back in seconds, next to the original so you can see exactly what changed. Download it, or run another build from the same photo.

Add the Muscle

Against retouching it by hand

The same edit in a photo editor means selecting, warping and repainting light — and the giveaway is always the background.

What it takesManual retouchingThis page (Recommended)
Retouching skill needed✓—
Time per photo20 minutes upSeconds
Background and light surviveIf you are carefulHeld by the instruction
Try a second buildStart over4 credits
First five free—✓
Open Image Models

Whose photos you may edit

Use photos of yourself, or of people who agreed to be edited. Reshaping somebody else's body and posting it is a thing done to a person, not just to a file. Never use photos of minors.

Face compliance runs automatically on every generation, which is why nothing has to be registered first. An automated check is a floor rather than permission: it cannot know whether the person in your photo agreed. That judgement is yours, both for making the edit and for sharing it.

Your photos stay yours

What happens to an upload on this page.

Nothing uploads before sign-in

Picking a file only previews it on your device. Not one byte is stored until you sign in and click generate.

Private, deduplicated storage

Uploads land in your private library, never a public gallery, and re-running the same photo stores nothing new.

Deletable any time

Remove uploads and results from your library whenever you want.

Add the Muscle

Choose your plan

One plan unlocks Nano Banana, GPT Image 2 and every other image model.

Starter

30% OFF

For first-time AI content creators

$20$14/mo

Billed $168 annually

Upgrade Plan

Save $72/year

1,200 credits released monthly
✓
No Unlimited generation
✓
Unlimited Concurrent Generations
✓
Renoise Agent Beta
✓
Unlimited LLM Chats
✓
Commercial Use
✓
Watermark-free exports

Standard

30% OFF

For creators shipping content every week.

$60$42/mo

Billed $504 annually

Upgrade Plan

Save $216/year

3,600 credits released monthly
✓
2 days of Unlimited each month
Unlimited models:
Hailuo H3 (768p)
Seedance 2.0 Mini (480p, 720p)
Seedream 5.0 Pro (1k)
Seedream 5.0 Lite
✓
Unlimited Concurrent Generations
✓
Renoise Agent Beta
✓
Unlimited LLM Chats
✓
Commercial Use
✓
Watermark-free exports
Best Value

Advanced

30% OFF

For studios and pros producing at commercial scale.

$200$140/mo

Billed $1680 annually

Upgrade Plan

Save $720/year

14,000 credits released monthly
✓
7 days of Unlimited each month
Unlimited models:
Hailuo H3 (768p)
Seedance 2.0 Mini (480p, 720p)
Seedream 5.0 Pro (1k)
Seedream 5.0 Lite
✓
Unlimited Concurrent Generations
✓
Renoise Agent Beta
✓
Unlimited LLM Chats
✓
Commercial Use
✓
Watermark-free exports

Renews automatically each year until canceled.

Frequently asked questions

1.Is the AI muscle generator free?

Your first five edits are free. Following us on X and YouTube earns 20 credits and an edit here costs 4 at list price. After that each edit is billed per generation — there is no free plan and no trial period.

2.Will it keep my face?

Yes, and that is the point of the instruction it sends. In our own runs the face, hair, skin tone, clothing colour, pose, background and lighting all came back unchanged; only the body shape moved. A small, blurry or heavily shadowed face gives the model less to hold onto.

3.Why did the abs show through my shirt?

Because the model treats the midsection as visible skin when it is asked for definition, so a loose top gets the muscle drawn on top of it. Use a tight-fitting or shirtless photo for abs; for arms, shoulders and chest, loose clothing is fine.

4.Can it make someone slimmer instead?

Not from this page. The instruction here only adds muscle, and the reverse edit has not been tested well enough to promise. The image surface, where you write your own instruction, is the place to try it.

5.Does it work on a group photo?

Crop to the person you mean first. The instruction does not name a subject, so on a photo with several people which one changes is a coin flip — and group shots have not been tested here.

6.Can I use a full-body photo?

Yes, as long as the person is large enough in the frame for the arms and torso to be readable. Full-length shots taken from far away have very few pixels of arm to work with, and the result tends to look soft.

7.What is the best AI muscle generator?

The useful test is not how muscular the output looks but how much of your photo survives. A tool that hands back a gym model with your haircut has not done the job. This one is instructed to hold the face, clothing, pose, background and light and change only the body, which is what makes the result usable as a picture of you.

8.Is this what I would look like if I trained?

No. This is a photo editor, not a prediction. It changes a picture and makes no claim about bodies, training or outcomes.

An AI-generated fictional man after the muscle edit — bigger arms, shoulders and chest, gym background unchanged

Add muscle to a photo

One photo, three builds, your first five edits free.

Add the Muscle
By Leon, RenoiseLast reviewed Models verified: Nano Banana 2 Lite

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