OSS Nation is a 100% free international platform dedicated to Brazilian jiu-jitsu lovers. It helps you easily find seminars, Open Mats, instructors and academies near you, anywhere in the world.
Too many events are still only announced on social media. OSS Nation simplifies finding and sharing jiu-jitsu events around the world.
The project was designed by practitioners for the community. It’s independent and funded by discreet ads related to BJJ or combat sports. That’s what keeps it free for everyone.
My name is Mika, a web developer and passionate jiu‑jitsu practitioner. I created OSS Nation to offer a simple, useful tool accessible to all practitioners worldwide.
You can support the platform by sharing the site, adding your club’s seminars, or contacting us to suggest ideas or partnerships.
Publishing seminars, open mats and schools is entirely free, with no commission. Only private lessons booked through the platform are subject to an 8% service fee, added on top of the instructor's rate. This fee funds the platform and is fully transparent: you see the total before paying.
Free
Seminars · Open Mats · Schools
8% service fee
Private lessons only