About
JONGG is an American mahjong web app for playing, learning and bringing a table together. Basic play and practice are free; optional JONGG Membership and digital tile sets are paid.
New players can try short tile and rule exercises, follow a practice plan and prepare for a table with friends. Teachers can share a printable practice packet between classes and ask learners to bring one question back. Exercises are small learning situations, not complete winning hands, proof of mastery or a teacher results dashboard.
Hosts can plan a game night and collect browser RSVPs. Hosting needs a free account; invited guests can respond by name without an account or app. Planning an in-person table is separate from playing an online hand.
Full play uses your own supported printed 2026 NMJL card. JONGG is independent of the National Mah Jongg League and does not supply a complete digital card. Digital tile sets change the appearance of the tiles; they are not physical sets or replacement rules cards.
What can I try between lessons? Choose a short exercise, say why you made that choice and bring one uncertainty to your teacher.
Practice plan: https://jongg.app/learn/american-mahjong/practice-plan
Printable teacher packet: https://jongg.app/print/teacher-practice
Game-night guide: https://jongg.app/host/mahjong-night