What are we working on next?

Tell your professor and get coached on it, one focus at a time. Or upload a roll and watch it get coached live.

Free, no account needed, and your videos stay private. For anyone who trains, white belt to brown, gi or no-gi.

Or just watch a legendary roll get coached

See it first

Watch a legendary roll get coached

Famous matches, broken down by the same coach that watches yours. Open one and see.

Roll review

Show your coach the roll, not your memory of it

After class you get whatever feedback survives to the water fountain. Upload footage instead. Your professor watches it live, chapters the match position by position, and calls the moments while they happen. You end with the read on your game and the two or three fixes that matter.

Every key moment has a Fix this button. The mistake becomes the next thing you study.

“Your best sequence was the 121–147s transition: you inverted out of half guard, attached to his right leg, maintained the knee line through his rotational escape, and finished the heel hook.”
Verbatim coaching from the Gordon Ryan vs Nicky Rod breakdown

One focus at a time

Then work on one thing until it sticks

Class covers whatever's on the schedule that week, which is rarely your problem. Your professor keeps you on one focus until it sticks: the exact detail you're missing, queued to the exact minute, so you skip the rest of the hour-long instructional.

Check in after class and say how it went. What worked and what got shut down teaches your professor your game.

The map underneath

Every position, and every road out of it

The recommendations don't come from a model's imagination. A connection only gets published when two independent coaches teach it, and every one cites a timestamped clip. This is the map your professor coaches from, and you can browse all of it.

2,044

Instructionals analyzed

1,286

Positions, techniques & concepts

5,317

Mapped connections

In your assistant

Bring BJJ Professor into ChatGPT or Claude

Connect the MCP server to ask about your game with chapters and instructional clips at hand. Building your own tool? The public API gives you positions, transitions and example match reviews for free, with no account or API key.

How it works

01

Tell them, or show them

Say what you're working on, or upload a roll. You're being coached inside a minute.

02

Get the read

A live breakdown of your footage, or a focus to work on with the exact clip that fixes it. Built for your belt and your problem.

03

Train and check in

Say how class went. Your professor remembers everything and queues the next detail for your focus.

Questions

What is BJJ Professor?

An AI coach for Brazilian Jiu-Jitsu. Upload footage of a roll and watch it analyzed live: a chaptered timeline, key moments, and specific fixes. Or describe what's giving you trouble and get coached on it, one focus at a time, with instructional clips queued to the exact minute you need. Free during beta, and it works without an account.

How does the roll analysis work?

Upload a video of a roll (MP4 or MOV, up to 300MB). Videos over 6 minutes open a private trim tool where you drag both handles around the exact section you want coached. The original uploads directly to private storage, and the analysis worker trims the selected server-side copy. Your coach watches it live while you watch along: it chapters the match position by position, calls key moments as they happen, and double-checks the close calls before the final read. You tap yourself in the frame so the coaching is about your game, or ask for a neutral breakdown of both athletes. Every key moment then has a "Fix this" button that hands it to the professor.

How do I film a roll?

Prop your phone against a wall or water bottle, landscape, far enough back that both athletes stay in frame. Any ordinary angle works. The demo breakdowns on this page came from regular competition footage. If the video is longer than 6 minutes, choose the exact section you want analyzed. Nothing is compressed or rewritten in your browser.

Does it work on competition footage?

Yes. A roll is a roll. The demo breakdowns on this page are competition matches analyzed by the same pipeline. Pick the athlete you want coached and the read is built through their eyes.

Do I need an account?

No. You get an anonymous identity in your browser and can start immediately. Signing in with Google is optional; it keeps your corner with you across devices.

Is my video private?

Yes. Uploaded rolls are visible only to you. The only public breakdowns on the site are the demo analyses of famous matches.

Where do the recommendations come from?

From a knowledge graph mapped out of more than 2,000 instructional videos by named coaches. A connection is only published when at least two independent channels teach it, and every recommendation cites a timestamped clip, so you can check the source yourself.

Who is it for?

Anyone who trains Brazilian Jiu-Jitsu, gi or no-gi. The sweet spot is hobbyists from white to brown belt who train a few times a week and want that mat time to compound.

What does it cost?

Free while in beta. Later you'll pay for the watching of footage, metered by action minutes; the coaching stays free.

Your next roll starts here

Tell your professor what you're working on. Or show them.

Free beta · no account needed · your videos stay private