Video effect
AI Muscle Generator
Turn one photo into a 5-second muscle transformation: flex, grow, stay yourself.
Muscle videos made from one photo
Every clip below started as a single still photo. The AI animates the flex and the growth, and keeps the face and the background exactly as they were.
The right transformation for each person
They raise both arms, flex, and the muscles grow. An adult man rips his shirt away to reveal a muscular chest and six-pack abs; a woman or a younger person powers up with every piece of clothing staying on. The face in the last frame is always the face in your photo.
Start free
Your photoDial it up or down
The default prompt is tuned and tested. Open "Adjust the prompt" to ask for a bigger transformation, a different pose or a slower push-in. Everything else stays one click.
Start freeHow to make an AI muscle video
Three steps, about a minute of waiting.



Frequently asked questions
What is an AI muscle generator?
A short video generated from a still photo in which the person flexes and their muscles visibly grow. The AI keeps the face, the clothes and the background and animates only the body and the pose.
Which photos work best?
One person facing the camera, arms visible, framed from the waist up. Gym photos, park photos and office photos all work; the transformation adapts to the outfit.
Is the AI muscle generator free?
New accounts receive free credits, enough for your first videos. After that you pay per video, not per month, and the price is shown on the button before each run.
Does it work for women and older people?
Yes. Women get the full transformation with their outfit staying on, and men of any age get the shirt-rip reveal. It does not change age, gender or the face.
Will it rip the clothes off?
For adult men, yes, that is the fun of it: the shirt tears away to reveal the new chest and abs. For women and for anyone who is not clearly an adult man, all clothing stays exactly in place and the muscles grow under it.
Do I own the video?
Yes. Generated output is yours to use, including commercially, subject to the source model terms. No watermark on paid plans.

