cardner/playlist-generator

This is a privacy-first, local-first web application called "mixtape gen" that generates intelligent playlists from users' local music libraries without requiring any backend server. Built with Next.js and TypeScript, it scans music folders directly in the browser using the File System Access API (with fallback for Safari/Firefox), extracts metadata, and creates playlists based on mood, activity, tempo, and genre preferences. The app supports multiple export formats (M3U, PLS, XSPF, CSV, JSON) for use in media servers like Plex and Jellyfish or local music apps like Media Monkey and Foobar2000. Key features include LLM-enhanced playlist generation (with configurable providers like OpenAI, Gemini, and Claude), audio preview capabilities, device sync for USB players, and comprehensive library management with multiple collections support. All data processing happens locally in the browser, ensuring complete privacy with no external data transmission.