20kg.fitness

Engineer your training.

The most customizable workout builder ever made — for lifters who'd rather engineer their programs than download them. Every method, full analytics, total control.

Total customization

Nothing is hardcoded. Write your own progressions, formulas, and set-and-rep logic. The tool bends to your method — not the other way around.

Advanced periodization

Blocks, waves, and undulating schemes. RPE and %1RM targets. Autoregulation that responds to how the session actually went.

Combine any methodology

Conjugate, 5/3/1, DUP, block periodization — mix them freely in a single program. You're not locked into one school of thought.

Deep analytics

Volume and tonnage by muscle, fatigue and recovery, PR trends, and forward projections. See everything; optimize everything.

Founding access.

Join the first cohort. Early access before public launch, and lifetime founding pricing — locked in for good.

One email when it's ready. No spam, ever.