Open-source alternatives to Snapcast

MPD is a headless music server daemon that indexes audio libraries and streams music to local or remote outputs. It functions as a music library manager and network audio streamer, providing a remote audio control protocol that allows external clients to manage playback, playlists, and database queries. The system acts as a multiroom audio coordinator, synchronizing audio distribution across multiple networked clients and hardware devices. It supports a variety of remote management capabilities, including a dedicated control API and the ability to broadcast audio streams over network protocol

OwnTone is a self-hosted music library manager and multiroom audio streaming server designed to run as a Unix-native daemon. It functions as a centralized hub that aggregates local audio files, internet radio, podcasts, and cloud-based music services into a single, unified library for network-wide access. The server distinguishes itself by providing synchronized multiroom audio broadcasting to AirPlay and Chromecast devices, alongside support for standard network protocols like DAAP and MPD. It manages these streams through a multi-protocol pipeline that handles transcoding and relaying, ensu

Navidrome is a self-hosted music streaming server designed to organize, index, and stream personal digital music collections. It functions as a centralized audio streaming platform that manages local audio files, automatically enriching them with metadata and artwork while providing a web interface for playback. The system supports multi-user access, allowing administrators to manage separate collections and listening histories with granular permissions. The platform distinguishes itself through its compatibility with the Subsonic API, enabling users to connect a wide range of third-party mus

Beets is a command-line music library manager that automates the organization, standardization, and maintenance of digital audio collections. It functions as a relational database-backed system that identifies audio content through acoustic fingerprinting and retrieves accurate metadata from online databases to ensure consistent tagging and directory structures. The project distinguishes itself through an event-driven pipeline architecture and a modular plugin system, which allow users to intercept and customize library processing workflows. This extensibility enables the integration of exter

miniaudio is a single-file C audio library used for audio playback, capture, and hardware interfacing across multiple operating systems. It functions as an audio hardware abstraction layer, an audio processing engine, an audio synthesis engine, and a codec and resampler. The project implements a node-graph based system for routing digital audio signals, mixing, and 3D spatialization. It also includes a programmatic generator for noise patterns and basic waveforms used for sound creation and signal testing. The library covers digital signal processing, including audio format conversion and sa

VDO.Ninja is a low-latency peer-to-peer media routing service and video streaming platform designed to integrate remote audio and video feeds into professional production workflows. It functions as a WebRTC broadcast integration tool and studio controller, allowing for the direct transmission of high-definition media between publishers and viewers with minimal delay. The platform distinguishes itself through extensive protocol bridging, converting between WebRTC, WHIP, WHEP, SRT, and RTMP to ensure compatibility across diverse network environments and professional studio software. It includes

The Android NDK samples provide a comprehensive collection of code examples demonstrating how to integrate C and C++ native code into Android applications. This repository serves as a practical guide for developers utilizing the Android Native Development Kit to implement performance-critical application components that require direct hardware access and low-level system interaction. The project highlights the use of the Java Native Interface to bridge managed code with native modules, enabling cross-language function calls and efficient data exchange. It demonstrates how to manage native act

Pipecat is a framework and software development kit for building real-time multimodal AI agents and speech-to-speech systems. It utilizes a frame-based data pipeline to route audio, video, and text through a modular sequence of processors, enabling the orchestration of low-latency conversational AI. The project is distinguished by its ability to coordinate complex multimodal services, including speech-to-text, language models, and text-to-speech, within a single pipeline. It features semantic voice activity detection for natural turn-taking, state-machine conversation flows for dialogue manag

This project is a multi-room music server and library aggregator that centralizes local audio files and various streaming services into a single unified database. It functions as a media controller for DLNA and UPnP devices, enabling the management of music, podcasts, and audiobooks across networked speakers. The system is distinguished by its ability to synchronize audio playback across multiple speakers and brands simultaneously. It features a digital signal processor for loudness normalization and frequency correction, alongside an acoustic fingerprinting engine used for metadata enrichmen

Metrolist is a music streaming application and library manager designed for high-fidelity audio and video playback. It functions as a collaborative audio player that enables real-time playback synchronization across multiple users through a request and approval system. The platform features an AI-driven lyrics translator that fetches time-synced lyrics and provides automated real-time translations. It also includes specialized integrations for Discord Rich Presence and a dedicated media client interface for Android Auto. The system manages music libraries with remote cloud storage synchroniz

Shairport-sync is an AirPlay audio streaming receiver that enables the reception of wireless audio streams from Apple devices and routes them to system sound servers or hardware devices. Its primary purpose is to facilitate multi-room audio synchronization, aligning output across multiple playback devices to ensure content plays in unison. The project distinguishes itself through advanced digital signal processing, including impulse-response convolution filtering to correct frequency response. It provides precise audio timing adjustments to compensate for amplifier latency and offers extended

Koel is a self-hosted music streaming server that allows users to stream personal audio collections from a private server to any web browser. It functions as a multi-user audio library, supporting independent user libraries and single sign-on authentication. The platform integrates cloud storage drivers to host and serve music files from third-party providers and utilizes a metadata aggregator to enhance local library data and track listening history via external services. It also includes a natural language interface for executing playback commands and navigating the music library. The syst

Audiobookshelf is a self-hosted media server designed for the organization and streaming of personal audiobook and podcast collections. It functions as a digital library manager that provides centralized hosting, allowing users to stream audio content to various web and mobile clients while maintaining synchronized playback progress across all devices. The platform distinguishes itself through comprehensive library management and multi-user administration tools. It includes integrated metadata enrichment to automatically fetch cover art and descriptive information, alongside utilities for edi

This project is a cross-platform desktop client for streaming and controlling music from the Google Play Music service. It functions as a dedicated media player that provides a desktop interface for accessing music libraries and playback controls. The application features rich presence capabilities, sharing current track information with communication platforms via real-time updates. It also acts as a WebSocket music controller, exposing playback states and controls to other applications through JSON and WebSocket interfaces. The player includes system-level integration for hardware media ke

spotifyd is a headless Spotify player and client daemon that operates as a lightweight background process without a graphical user interface. It functions as a Spotify Connect receiver, allowing a device to register as a controllable playback device for remote management via official client applications. The project implements remote playback protocols and API integrations to enable audio streaming and remote control. It utilizes a cross-platform audio backend and system-level sound driver integration to output audio across different operating systems, with specific support for Linux audio in

This project is a framework for building local voice assistants and a real-time audio streaming server. It functions as a containerized inference engine and a multilingual speech pipeline that orchestrates speech-to-text, language models, and text-to-speech components to convert spoken input into spoken output. The system is distinguished by its use of WebSocket-based bidirectional streaming for low-latency interactions. It features a voice activity detection system that manages speech boundaries and handles user barge-in interruptions during assistant playback. It also supports custom voice

Xiaomusic is a remote media control system designed for Xiaomi smart speaker integration. It enables the streaming of custom audio sources and network playlists to compatible hardware via a centralized software interface. The system manages network audio streaming by loading external JSON configurations and parsing M3U playlist files. It includes capabilities for directory-based file discovery to index local audio files and performs dynamic audio format conversion to ensure compatibility with the hardware output device. Playback is managed through a command-driven interface that supports tra

01 is a voice-to-code agent and language model voice interface framework that enables natural language control of computers and devices. It functions as a real-time audio streaming server and a cross-platform voice client, translating spoken instructions into executable code to automate software, manage files, and browse the web. The system supports both local and cloud-based language models, alongside local or hosted speech-to-text and text-to-speech engines. It is designed for custom hardware integration, providing the means to build embedded AI voice controllers using microcontrollers like

Koel is a self-hosted music streaming server designed for hosting, managing, and streaming personal digital music collections via web and mobile applications. It functions as a personal audio streaming platform that allows users to organize local and cloud-based audio libraries with integrated user accounts and playlist management. The system distinguishes itself by acting as a cloud-integrated media server, enabling the connection of remote storage providers to serve music files without requiring local disk space. It provides a cross-platform playback experience, ensuring consistent access t

librespot is an open-source audio streaming client and library used to implement custom music players that authenticate and stream audio from the Spotify service. It functions as a framework for fetching, decoding, and routing remote audio streams to various system backends and audio sinks. The project specifically implements a Spotify Connect receiver, allowing it to act as a remote-controllable playback endpoint that appears as a selectable device within other Spotify applications. This enables the creation of virtual playback devices, headless music playback on remote servers, and the inte

Psst is a cross-platform Spotify music client and library manager. It functions as a desktop application for streaming music and podcasts, providing a native playback interface and tools for organizing saved albums and playlists. The project is distinguished by a client-server architecture that separates the core audio playback engine from the user interface. This allows for dual-interface state sharing, where a graphical user interface and a dedicated command-line interface can simultaneously control the same playback session. The application covers audio streaming with loudness normalizati

Librosa is a Python audio analysis library and digital signal processing framework. It functions as a feature extraction suite and music information retrieval tool designed to analyze the structural and sonic characteristics of audio signals. The library provides specialized capabilities for music analysis, including dynamic tempo tracking to identify rhythmic pulses and spectral feature extraction to compute harmonic spectra, chroma variants, and onset points. It also serves as a time-series audio processor for synchronizing audio streams. The system covers a broad range of audio processing

This project is a sample implementation of an audio playback application for the Android platform. It serves as a reference for building music players that utilize standard media APIs and system-level audio management. The implementation demonstrates the integration of media session controls for external hardware and provides a reference for synchronizing media playback and control states across multiple connected hardware devices. The project covers several core areas of Android audio development, including background playback services, media store querying, and declarative user interface c

AlgerMusicPlayer is a cross-platform desktop application designed to manage and play audio content. It functions as a centralized media client that integrates local music library management with online streaming services, providing a unified interface for organizing collections and accessing audio tracks. The application distinguishes itself by offering a highly customizable playback experience, including features such as equalizers, playback speed adjustments, and keyboard shortcuts. Users can personalize their workspace through theme switching and mini-player modes, while the integrated sea

Moonlight-qt is a cross-platform client application designed to stream high-fidelity audio and video from a remote host computer to a local device. It functions as a remote desktop and gaming client, enabling users to interact with host environments by forwarding local keyboard, mouse, and controller inputs to the remote machine. The software distinguishes itself through the use of hardware-accelerated decoding, which processes incoming high-bitrate streams to maintain low latency and minimal CPU overhead. It supports high frame rate streaming and multi-channel surround sound, ensuring that i

wslg is an integration layer and display server system designed to run Linux graphical applications on Windows. It provides a bridge between Linux window management, audio routing, and system clipboards and the Windows host, utilizing a Wayland and X11 display server to support visual software. The system utilizes a virtual GPU architecture to provide hardware-accelerated rendering for graphics-intensive applications. It implements a Remote Desktop Protocol gateway to stream graphical frames and uses a specialized sound server interface to route audio and microphone data between the Linux gue