# MIDI Toolbox
> https://miditoolbox.com
> Free, high-quality, privacy-focused MIDI processing tools directly in your browser. No sign-up required.

MIDI Toolbox provides a comprehensive suite of free tools for MIDI creators, performers, and developers. All processing is 100% local, ensuring your files never leave your device.

## Core Tools

- [MIDI Player](https://miditoolbox.com/player): Online MIDI player with SoundFont support and real-time piano roll visualization. No installation needed.
- [MIDI Editor](https://miditoolbox.com/editor): Full-featured Piano Roll editor. Edit notes, quantization, velocity, and tracks directly in the browser.
- [MIDI Converter](https://miditoolbox.com/converter): Convert MIDI to MP3 or WAV (lossless) online. Customize bitrate and render with high-quality SoundFonts.
- [MIDI Visualizer](https://miditoolbox.com/visualizer): Create waterfall note videos from MIDI files. Customizable themes for content creators.
- [MIDI Analyzer](https://miditoolbox.com/analyzer): Get detailed statistics, BPM detection, and key signatures from MIDI files.
- [Score Viewer](https://miditoolbox.com/score): Instantly convert MIDI to sheet music. View and print music notation.

## Resources

- [MIDI Library](https://miditoolbox.com/library): A curated repository of classical and style-categorized MIDI files for practice.
- [Contact Support](https://miditoolbox.com/contact-us): Feedback and technical support.

## Technical Context for AI

- **Privacy:** 100% Client-side processing using Web Audio API. No user data is sent to servers.
- **Compatibility:** Supports Standard MIDI Files (.mid, .midi) Format 0 and 1. Works on modern desktop and mobile browsers.
- **Technology:** Built with Next.js, React 19, and Tone.js.