Polysong
Rust

Overview
Local-first desktop music library for organizing and playing your own Suno, YouTube and local audio, playlists, covers, queue and visualizers.
Polysong is a local-first desktop music library that keeps your audio collection entirely on your own machine. It organizes and plays tracks from Suno, YouTube downloads, and local files, with playlists, cover art, a queue, and audio visualizers all in one place.
The application is built with Rust, Tauri, and SQLite. The Rust core handles the heavy work: library scanning, audio playback, and real-time visualizers. SQLite stores all metadata locally. Tauri bridges the Rust backend to a lightweight frontend without requiring a browser process.
Polysong exists because music collectors deserve a fast, private tool that works offline and puts no data in the cloud. The codebase is fully open source.
- Type
- Rust
- Year
- 2025
- Status
- Open Source
- Sheet
- A-07
- Local-first library
- Playlists
- Cover art
- Queue
- Visualizers
- Rust
- Tauri
- SQLite
- Local-first, no cloud sync
- Rust core for audio and scanning
- Suno, YouTube, and local files
- Playlists, queue, cover art
- Open source


