Free tools

Tools, not opinions

Interactive, free, and honest about their assumptions. More coming as we build them.

ToolBelt Timeline CalculatorHow long each belt really takes at your training pace ToolGi Size CalculatorHeight + weight in, your A-size out, brand quirks included ToolBJJ GlossaryEvery term you nodded along to, actually explained

Know exactly where you are on the path.

RollPath is a Jiu Jitsu journal built around the belt system: what to learn at your belt, a log for every roll, and a timeline that shows how far you've come and what's between you and the next promotion. Coming to iOS.

First 200 get early access · quiet emails only