Body Visualizer is a free 3D body simulator that shows you what your body shape actually looks like — no photo upload, no signup, nothing stored. Enter your height, weight and a few measurements and see your silhouette rendered in 3D in seconds.
The site also includes a Body Shape Calculator that identifies your body type (hourglass, pear, apple, rectangle, inverted triangle) from your measurements, and a Macro Calculator that gives you daily protein, carb and fat targets based on your weight, gender and training level. Food suggestions come from official government nutrition databases — USDA FoodData Central in the US, the Canadian Nutrient File, Food Standards Australia New Zealand and Germany's BLS.
Free to use, runs entirely in your browser.

The no-photo, in-browser 3D silhouette is the useful part: you can preview how a weight change would look without uploading a picture or creating an account. Pairing that with a body-shape calculator and country-specific nutrition databases (USDA, Canadian Nutrient File, FSANZ, BLS) makes it more practical than a generic BMI page. I'd want to know whether the protein/carb/fat ranges actually switch when you pick fat loss versus muscle gain, or if those targets stay static.

The no-photo, in-browser 3D silhouette is the useful part: you can preview how a weight change would look without uploading a picture or creating an account. Pairing that with a body-shape calculator and country-specific nutrition databases (USDA, Canadian Nutrient File, FSANZ, BLS) makes it more practical than a generic BMI page. I'd want to know whether the protein/carb/fat ranges actually switch when you pick fat loss versus muscle gain, or if those targets stay static.
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