OpenMahj

American Mahjong, together.

Have an invitation? Enter your four-character room code.

A little practice, every day

Enter your name above to take a seat.

Free to play · No account needed · Bots fill empty seats

Limestone LabsOpenMahj is a Limestone Labs LLC product.Terms Privacy Refunds notschmee @notschmee

OpenMahj — American Mahjong with Friends OpenMahj is a free online American Mahjong game (NMJL-style) played in a web browser with four-character room codes: four-player tables or two-player Siamese, with the Charleston, jokers, calls and exposures, and bots that fill any empty seat. No download and no account. The table itself needs JavaScript to run. Read about OpenMahj, how to play, pricing, and answers to common questions.