Host your Minecraft server together, from a shared Google Drive

Whoever wants to play hosts it. MCS-Relay downloads the latest world, runs the server on your PC, and saves it back to Google Drive for the next friend. No rented server, no passing files around.

Free and open source · Windows 10 and 11 · Updates itself

The MCS-Relay window while hosting a server: the stop button, two players online and the address friends join with.

How it works

1

Create a server

MCS-Relay makes a server folder in your Google Drive. Invite your friends; Google Drive emails them a link to join.

2

Press Start

The newest world is downloaded and the server runs on your PC. It is reserved for you, so nobody else starts it at the same time.

3

Play

Friends join with your address. With playit.gg they can join from anywhere without port forwarding.

4

Press Stop

The world is uploaded and the server is free again. Next time, any of you can host it.

Your Google data

When you sign in, Google asks you to let MCS-Relay see, edit, create and delete your Google Drive files. The app needs that to read the world files your friends upload: Google's smaller permission only shows an app the files it made itself.

  • MCS-Relay only works in the "Minecraft Shared Servers" folder it makes in your Drive and in the servers you join. It does not open, list or change your other files.
  • There is no MCS-Relay server: the app talks to Google straight from your PC, and your sign-in is stored encrypted on it.
  • Nothing is sold, shared for advertising or collected for statistics.

The privacy policy lists exactly what the app uses and where it is kept. You can take the access back at any time in your Google Account.

What you need

  • Windows 10 or 11 and a Google account.
  • Java, in the version your Minecraft server needs.
  • A Minecraft Java server folder (a server .jar, or run.bat for Forge and NeoForge). An existing world works too.
  • Optional: playit.gg, so friends can join from anywhere.