Open source. Open possibilities.

A rule-based classical piano music generator that creates complete pieces in the browser from a single seed.

Valis is a virtual analog synthesis system that lets users build circuits using RDF/Turtle syntax, with UI views for controls, circuit diagrams, and code. It supports LLM-driven design via MCP and runs as a standalone app or DAW plugin.

A collection of patches and selections for VCV Rack created by Matt Lavallee.

A self-hosted web application for managing audio libraries, specifically designed for editing FLAC/MP3 metadata and synchronized lyrics.

spotDL is a command-line tool that finds and downloads songs from Spotify playlists via YouTube, including album art, lyrics, and metadata.

Beatroot is a Digital Audio Workstation (DAW) developed using the Rust programming language.

A keyboard-centric digital audio workstation written in Zig, featuring a modal workflow inspired by Vim for music production.

A curated directory of free stock photography, video, illustration, vector, icon, font, pattern, texture, and sound resources, organized by media type and license.

A multi-platform MIDI chords and music theory application. It includes desktop (Python/PySide6), web (Cloudflare Worker), and mobile (Flutter) versions, offering harmonic detection, chord generation, and scale generation.

A browser-based music production app (DAW) for children. It allows users to compose music by filling in grids and features AI-assisted composition and MP3 export capabilities.

A free, browser-based interactive reference for learning scales, modes, chords, arpeggios and voicings on Ableton Note and Push pad layouts. No account, installation, analytics or tracking.

A native macOS app that converts MIDI files into keyboard input for the Neverness to Everness (NTE) in-game piano, supporting both 21-key and 36-key layouts.

Pear Desktop is a native-look extension for music players, providing a desktop experience for YouTube Music.

Static is an open-source web-based embedded radio player that builds a static page with webpack, using YouTube live streams as stations and giphy videos as backgrounds. Stations and backgrounds are configured via JSON files, and it can be hosted on GitHub Pages.

thinksynth is a modular software synthesizer and algorithmic composition engine that builds sounds and music using a graph of DSP nodes.

fabu is a collaborative music creation program featuring a piano roll, custom instruments, and real-time multiplayer capabilities for up to 100 users.

Beets is a Python‑based music library manager that catalogs collections, auto‑tags files using MusicBrainz and other sources, fetches album art, lyrics, genres, applies ReplayGain, detects duplicates, transcodes audio, and offers a web UI and MPD‑compatible player.

Spotube is a cross-platform, plugin-extensible open-source music streaming app for desktop and mobile. It uses community plugins for music metadata, playlists and audio sources, supports synced lyrics, tagged downloads, and collects no telemetry.

A local-first macOS application for browsing, previewing, and annotating beat libraries, featuring a companion VST3/AU plugin for DAW integration.

cobalt is an open-source media downloader that lets you paste a link and get the file, with no ads, trackers, or paywalls. It runs as a monorepo with an API, web frontend, and docs for self-hosting.