The WorkoutGen Team
Free app created by Jeremy Tellier, state-certified trainer, and Jean-Baptiste Thery, expert developer. A French solution that democratizes professional coaching through 500+ exclusive videos and proven training methods.
The WorkoutGen Team
Jean Baptiste Thery
Co-founder & Lead Developer
Full Stack JavaScript developer for 8 years. Has worked with major companies like Banque Accord, Decathlon and Suzuki, as well as numerous innovative startups. Technical expert in the web domain. Creator of the WorkoutGen algorithm that adapts Jeremy's programs to each unique profile.
Jeremy Tellier
Co-founder & Fitness Coach
Former military firefighter from Paris (BSPP - Paris Fire Brigade). State-certified BPJEPS coach, professional Hyrox athlete. 10 years of experience: military physical preparation and civilian coaching. Creator of 500+ videos and validator of WorkoutGen methods.
Our mission
Make gym training accessible to everyone. Our engine is built on Jeremy Tellier's expertise as a certified coach: his professional know-how encoded into an algorithm that generates your programs – not a generative AI text generator. AI then steps in to personalize: it learns from thousands of users' feedback to refine parameters, and adapts your sessions in real-time based on YOUR feedback – like a coach by your side. 4 goals (muscle gain, weight loss, strength, fitness), 500+ HD videos filmed by our team.
A modern experience: full-screen vertical video player, complete workout organization and scheduling management, multi-platform PWA, gamification, 8 languages, 1-click installation. 100% free with no ads, optional premium AI Coach for real-time adaptation. Behind WorkoutGen is a real human coach (Jeremy Tellier, BPJEPS certified, former Paris firefighter) whose expertise guides every program. AI personalizes, but a human built the foundation. Made in France.