Free BJJ tools

Tools that make you better, not busy

Built by a black belt who can’t outgrind anyone, so I out-study them instead. Every one is free, runs in your browser, and needs no login. Use them.

5 free toolsNo sign-up to useWorks on your phone

Flagship tool

BJJ Skill Tracker

Rate yourself on the 65 techniques that make up jiu-jitsu, organized by position, and see your whole game on one radar chart. Your weakest link shows up fast. Save a snapshot and re-test in a few months to watch your map grow.

65 techniques~5 minSaves your progressOpen the Skill Tracker →

Find your build

Body Match

Enter your height and weight and get matched to the elite grappler built like you. Steal a game that fits your proportions, not a 100kg heavyweight’s.

~1 min73 athletesNo loginFind your body double →

Find your style

BJJ Archetype Quiz

Nine questions about how you actually roll, not how you wish you did. You get your archetype, the grapplers who fight like you, and the one instructional that fits your style.

9 questions~3 minTake the quiz →Most used

Buy the right size

Gi Size Calculator

Height and weight in, a size recommendation for 13 gi brands out, with adjustments for tall-and-skinny or short-and-stocky builds. The most-used tool on the site.

~1 min13 brandsFind your gi size →

Test yourself

Gi Knowledge Quiz

How well do you actually know gi rules and etiquette? A quick run through the things people get wrong at their first competition.

Quick quizJust for funTest your knowledge →

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Every tool here is built on the technique map behind The BJJ Map, the same system used in our instructional reviews.