mStream - Open Source Music Streaming
mStream is open source software that lets you sync and stream your music between all your devices.
Categories:
mStream is an open-source personal music streaming server that enables users to access, stream, and sync their music collections from any device, anywhere.
🚀 Overview
mStream is a lightweight, self-hosted music streaming server designed for users who prefer owning and controlling their music libraries rather than relying on commercial services. It streams high-quality, uncompressed audio like FLAC directly from your server to browsers, mobile apps, or other devices without ads, tracking, or content restrictions.
The project solves the problems of privacy invasion, data collection, and unpredictable availability in big streaming services, while supporting direct artist payments through music purchases. It's built for audiophiles, privacy advocates, and self-hosting enthusiasts who value gapless playback, visualizers, and cross-device sync.
- What problem does this project solve? Streaming personal music collections privately and with full quality control.
- Who is it built for? Music owners, self-hosters on NAS/Raspberry Pi, and those avoiding corporate streamers.
- Why did you build it? To provide an ad-free, private alternative that puts users in control of their music experience.
✨ Key Features
- Server setup in 30 seconds on any OS (Windows, macOS, Linux, Raspberry Pi), lightweight for large libraries
- Cross-device access via web browser, iOS/Android apps with gapless playback and Milkdrop visualizer
- Playlist sharing, drag-and-drop uploading, and multi-terabyte library support
- Docker support, binaries, and source installs for easy deployment
🛠 Tech Stack
- Frontend: HTML, CSS, JavaScript
- Backend: Node.js (v10+)
- Database: LokiJS (in-memory)
- Auth: Custom (self-hosted, no external services)
- Hosting: Self-hosted (Docker via linuxserver.io, binaries, AWS Terraform)
👥 Who Is This For?
This project is useful for:
- Audiophiles and FLAC enthusiasts seeking lossless, gapless streaming
- Self-hosters managing personal media servers on low-power devices
- Privacy-focused users avoiding data-tracking music services
📸 Screenshots / Demo
- Live demo: https://demo.mstream.io/
- GitHub: https://github.com/IrosTheBeggar/mStream
🔥 Project Status
- 🟢 Actively building
Last updated: 2026-03-24
❓ FAQ
Is this project free?
Yes — completely free and open source (GPL-3.0).
Is the source code available?
Yes — https://github.com/IrosTheBeggar/mStream
Can I contribute?
Yes — report issues, submit PRs on GitHub, discuss features on Discord (https://discord.gg/AM896Rr), or help with testing.
📬 Contact & Links
- Website: https://mstream.io
- GitHub: https://github.com/IrosTheBeggar/mStream
- Twitter/X: N/A
- Email: N/A
Built with ❤️ and kept warm on WarmIndex.
Similar apps
LibreTime | LibreTime
libretime.org
Radio Broadcast & Automation Platform
Say it with a playlist
mercutio.app
Turn your message 💌 into a playlist 🎧. Sometimes, a playlist says more than words.
AzuraCast
azuracast.com
AzuraCast is a free and open-source, self-hosted web radio management suite.
Navidrome
navidrome.org
Welcome to Navidrome! Learn More Download Your Personal Streaming Service Navidrome allows you to enjoy your music collection from anywhere, by making it available through a modern Web UI and through a wide range of third-party compatible mobile apps, for both iOS and Android devices.