rtmidi ☆

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Description:
API for realtime MIDI input/output

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Multimedia

Tags: midi audio c++ library multimedia

Install: brew install rtmidi

About:
RtMidi is a set of C++ classes that provides a cross-platform API for realtime MIDI I/O. It allows developers to enumerate and access MIDI ports for sending and receiving messages without dealing with platform-specific low-level code. Its main value is simplifying the development of MIDI applications across Windows, macOS, and Linux.

Key Features:

Cross-platform support (Windows, macOS, Linux)
Object-oriented C++ API
No external dependencies
Supports both MIDI input and output

Use Cases:

Building MIDI synthesizers or sequencers
Creating software that interfaces with MIDI hardware controllers
Developing MIDI monitoring or routing tools

Alternatives:

PortMidi – PortMidi is another cross-platform C library for MIDI I/O, whereas RtMidi is C++ and often considered more modern and easier to integrate.

Version History

Detected	Version	Rev	Change	Commit
Sep 17, 2025 1:04am		0	VERSION_BUMP	a6c10069
Sep 14, 2024 1:08am		0	VERSION_BUMP	92252019