Open-source AI fitness body transformation simulator — production-ready Next.js SaaS that visualizes physique goals with photorealistic AI body transformation. For personal trainers, gyms, and fitness apps. Stripe billing, credits, NextAuth, and Prisma.
stripe nextjs prisma tailwindcss saas-boilerplate nextjs-boilerplate nextauth body-recomposition generative-ai ai-image-generator ai-saas fitness-ai ai-fitness body-transformation physique-simulator ai-weight-loss fitness-visualization workout-ai personal-trainer-tools body-simulator
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Updated
Jun 29, 2026 - JavaScript