can i fork it?
open sourceGPL-3.0Self-host★ 2.4kactive aug 2026

mStream

The small, installable music server for people who do not want a media empire.

Technical Profile & Specs

verified 2026-08-11

Cost
$0 / forever (Open Source)
License
GPL-3.0
Hosting Model
Self-host (your server)
Platforms
desktopmobilewebself-hostedone-click install
Installation
Prebuilt Windows/macOS/Linux server binary or Docker image
Operational Setup
Browser access away from home still requires DNS, TLS and port forwarding; the easier Quick Sync path currently works only with its native clients
Where Your Data Lives
Audio stays in folders on the host; mStream keeps its server configuration, index and generated caches in local application directories or mapped Docker volumes
The Catch / Trade-off
It has no licensed catalogue, editorial discovery, Spatial Audio, or Apple ecosystem integration, and its clients and library tools are much smaller in scope.

Replaces 4 paid apps

up to $48.96/mo ($588/yr) in subscriptions

mStream FAQ

Common questions

Is mStream free and open source?+

mStream is an open-source tool licensed under GPL-3.0 that runs on self-host. The small, installable music server for people who do not want a media empire.

What paid software does mStream replace?+

mStream serves as a free replacement for 4 paid SaaS applications: Apple Music, Spotify Premium, TIDAL, YouTube Music Premium, saving up to $48.96/month ($588/year) in subscription bills.

How do you install and set up mStream?+

Installation: Prebuilt Windows/macOS/Linux server binary or Docker image. Setup notes: Browser access away from home still requires DNS, TLS and port forwarding; the easier Quick Sync path currently works only with its native clients

What is the catch or trade-off with mStream?+

It has no licensed catalogue, editorial discovery, Spatial Audio, or Apple ecosystem integration, and its clients and library tools are much smaller in scope.