Multiplayer Piano Online (OBS & Streamer Friendly)

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Play piano together online instantly. Perfect for live streams, OBS friendly, viewer interactions, and music fun.

Why Streamers Use It with OBS

Add as Browser Source in OBS (zero lag, transparent background)
Viewers join and play along live – keys light up in real time
Crystal-clear audio + visual feedback on stream
Lock the room for solo performances or open for chaos
Built-in chat and session recording
Added MIDI capability – you can already jam with your midi devices.

Quick Room Setup with URL Parameters

Create or join rooms directly via URL for seamless sharing:

Create a new room: Append ?room=ROOM_ID to the base URL (e.g., djyajn.net/multipiano?room=mynewroom) – generates a unique room ID instantly.
Join an existing room: Use ?room=ROOM_ID (e.g., djyan.net/multipiano?room=abc123) – jumps straight in. Share these links with viewers for one-click joins during streams.

How to Add to OBS (30 seconds)

Open djyajn.net/multipiano
Create or join a room ( ?room=ROOM_ID )
Copy the room link
OBS → Sources → + → Browser Source → paste URL
Enable “Shutdown source when not visible” + transparency (optional)

No registration, no downloads, works on PC/Mac/Linux.

Start your interactive piano stream now → djyan.net/multipiano/?room=your_new_room_id

https://djyan.net/multipiano/?room=your_new_room_id

tROUbleshooting

In case you have heavy lagging because of the Multipiano addition to OBS via browser source you can fix the cpu overload by adding additional parameters to the url:

For zero lag try those (Copy/Paste the urls):

Recommended → https://djyan.net/multipiano/?room=room_id&invisible&fps=20
Super safe (old PCs) → https://djyan.net/multipiano/?room=room_id&invisible&fps=15
Still pretty + light → https://djyan.net/multipiano/?room=room_id&light&fps=30
Full beauty (direct play) → https://djyan.net/multipiano/?room=room_id

You may see this on first time you will try activating midi connection: