- https://multiplayerpiano.com/ - the original site, bought out by a marketing company
- https://mppclone.com/ - the ultimate community-run fork
- https://multiplayerpiano.net/ - alternative name for the above
- https://www.multiplayerpiano.org/ - alternative name for the above
- https://better.mppclone.me/ - a little different but uses the mppclone server
- https://www.multiplayerpiano.dev/
- https://piano.ourworldofpixels.com/ - longest-running fork of the original MPP with drawing and binary notes
- https://mpp.hri7566.info/
- https://mpp.autoplayer.xyz/
- https://mpp.lapishusky.dev/
- https://mpp.totalh.net/
other sites inspired but not based on mpp
- https://www.pianorhythm.me/ - sophisticated web app with lots of features
- https://daydun.com/piano/ - simple modern piano with bare-minimal buffer-less binary protocol
comment any additional sites below
