mStream review 2026: how this open-source, self-hosted music streaming server works, key features, setup, and how it compares to Navidrome and Plex.
mStream is an open-source, self-hosted music streaming server built for people who want to access their own audio library from anywhere without handing their files or listening data to a commercial streaming company. Created in 2015 and maintained on GitHub under the IrosTheBeggar account, it has become one of the more widely used self-hosted personal streaming projects, with over 2,300 GitHub stars.
Rather than requiring a complex install process, mStream is designed around a fast setup, its own documentation cites roughly 30 seconds to get a server running, using a lightweight embedded database rather than a heavier external one, and running natively on Windows, macOS, Linux, and FreeBSD.
mStream streams common lossy and lossless formats including FLAC, MP3, WAV, OGG, Opus, AAC, and M4A/M4B, and includes gapless playback plus a Milkdrop-style visualizer. Users can create and share playlists, upload files by dragging and dropping them into the web interface, and sync music for offline listening in the official iOS and Android apps.
Distinctive extras set mStream apart from many self-hosted alternatives: built-in yt-dlp support for importing audio, integration with torrent clients like Transmission, Deluge, and qBittorrent, and a federation feature that lets separate mStream servers share specific music directories with each other using invite tokens.
mStream is completely free and open-source software, licensed under GPL-3.0, with no paid plans, subscriptions, or cloud-hosted product to buy. Users run it entirely on their own hardware, from a home computer to a NAS or VPS.
Because there is no commercial entity monetizing the product, mStream's ongoing development depends on its open-source community and maintainers rather than subscription revenue.
Yes, mStream is completely free and open-source software licensed under GPL-3.0, with no paid tiers.
mStream supports FLAC, MP3, WAV, OGG, Opus, AAC, M4A, and M4B files.
No, mStream runs on Windows, macOS, Linux, and FreeBSD, and can be deployed on anything from a home computer to a NAS or VPS.
Yes, mStream offers official iOS and Android apps with offline sync support in addition to its browser-based web player.
Federation lets independent mStream servers share specific music directories with each other using invite tokens, letting self-hosters loosely connect their libraries.
mStream is a full self-hosted streaming server with its own web and mobile interfaces built in, while MPD (Music Player Daemon) is a background playback engine with no built-in interface that relies entirely on separate client applications.