MiVi: MIDI Visualizer

Transform your MIDI files into stunning visual experiences.

Try MiVi →

Features

• Visualizer Styles - Piano Roll, Vertical Piano Roll (falling notes onto a keyboard), and Comet modes
• Deep Customization - 30+ adjustable parameters, colors, and effects
• Playback Control - Play, pause, seek, and track management
• Video Export - Export visualizations as video files
• Privacy First - Runs entirely in your browser; your files are never uploaded to any server
• PWA Support - Install as standalone app, works offline

Development

Prerequisites

• Node.js (v24 or later)
• pnpm (v10 or later)

Setup

git clone https://github.com/sunya9/mivi.git
cd mivi
pnpm install
pnpm dev

Then open http://localhost:5173 in your browser.

Contributing

Contributions are welcome! Bug fixes and small improvements can be submitted as a PR directly. For new features or large changes, please open an issue first to discuss.

License

MIT License