OpenMapp Launches Free BJJ Gym Map Covering More Than 600 US Cities

OpenMapp launched a free map of Brazilian jiu-jitsu gyms in more than 600 US cities, listing weekly class and open mat times, drop-in policies and visitor fees, the FinancialContent Business Page reported. The map is free for users, and gyms pay no fee on drop-in bookings made through OpenMapp until January 1, 2027.

How the OpenMapp BJJ Map Works

Visitors can search by city, neighborhood or ZIP code and filter for gyms that welcome drop-ins today. Filters also cover Gi, No-Gi and open mat sessions. Each listing is re-checked against the gym's published timetable every month and shows when it was last verified.

The largest city listings include San Diego and Las Vegas, with 35 gyms each, followed by Houston, Austin and Phoenix. Each city has its own page, such as BJJ gyms in San Diego.

OpenMapp collects information that is usually spread across gym websites, social media posts and direct messages. Harry Burman, founder of OpenMapp, said: "Finding an open mat in a new city usually means scrolling through old posts and messaging gyms that may not reply." He added: "We put the weekly times, the drop-in policy, and the price on one map, and we check them every month so visitors know what to expect before they show up."

Some gyms also accept drop-in reservations through OpenMapp, where visitors sign the gym's waiver and pay before arriving. AI assistants can look up OpenMapp listings through its Model Context Protocol (MCP) server. OpenMapp is available now at openmapp.com.

OpenMapp's Free Booking Window for Gyms

OpenMapp charges gyms no fee on drop-in bookings made through the map until January 1, 2027. The company is based in Monterey, California, and was founded in 2026.