boombox How it works
Free · No app · No sign-up

Every device,
one speaker.

Turn the phones, laptops and tablets around you into one big sound system. Everyone plays the same song at the same moment.

Works in the browser on iPhone, Android, Mac, Windows and tablets. Anything with internet.

How it works

Three steps to one big sound.

  1. 1

    Start a room

    You get a short room code and a QR code. You're the host.

  2. 2

    Bring every device

    Friends scan the QR or type the code on any phone, laptop or tablet. Nothing to install.

  3. 3

    Add songs, press play

    Search or paste a YouTube link. Every device plays the same moment and keeps itself in step.

Good to know

Point your camera at a room's QR code

Room

Connecting…

Add a song to start

Paste a YouTube or YouTube Music link

0:000:00
Use the side buttons for volume

Up next

Nothing queued yet.

Add a song

In the room

Invite people

Scan with any camera, or enter the code in Boombox on any device.

Sync

—ms from the room clock

Details
Clock offset
—
Round trip
—
Seek lag (learned)
—
Start lag (learned)
—
Player
—