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Last Updated: 07-11-2026 05:50 PM (UTC)

Substreamer

A free, polished web client for Subsonic-compatible music servers: Substreamer is the browser-based frontend you point at your existing streaming backend to play your own library from anywhere. It speaks the Subsonic API (v1.13 and higher), which makes it compatible with the whole ecosystem that has grown around that protocol: the original Subsonic server, its forks Airsonic and Madsonic, and modern implementations like Navidrome and Ampache. That decoupling is the point - your music files, transcoding, and library indexing live on whichever server you prefer, while Substreamer provides the listening experience: browse by artist, album, and genre, build and manage playlists, search your collection, and stream on demand. This RepoCloud deployment runs the containerized web edition, so the same interface is available from any browser without installing a native app, and it pairs with the Substreamer mobile apps that made the client popular. For anyone assembling a self-hosted Spotify replacement - typically Navidrome for the backend plus a good client - Substreamer fills the client half with a clean, familiar player UI. Because it is a stateless client, the container is lightweight and low-maintenance: connect it to your server's URL and credentials, and your entire collection is streaming in minutes, with no subscription and no catalog that can disappear.

Substreamer
Substreamer

Benefits

  • Your Music, Your Way
  • Stream a library you actually own - no subscription, no licensing removals, no algorithmic interference.
  • Works with the Whole Ecosystem
  • Any server speaking Subsonic API v1.13+ works: Subsonic, Airsonic, Madsonic, Navidrome, and Ampache.
  • No App Install Needed
  • The containerized web edition brings the full player to any browser on any device.
  • Lightweight by Design
  • A stateless client container - your server does the heavy lifting while Substreamer stays tiny.

Features

  • Subsonic API Client
  • Full compatibility with Subsonic API v1.13 and higher across servers and forks.
  • Library Browsing
  • Navigate by artist, album, and genre with search across your whole collection.
  • Playlist Management
  • Build, edit, and play playlists stored on your music server.
  • On-Demand Streaming
  • Play any track in the browser, served and transcoded by your backend.
  • Quick Server Connect
  • Point it at your server URL and credentials - streaming in minutes.
  • Companion Mobile Apps
  • The same Substreamer experience is available as popular iOS and Android clients.