---
title: MIDIOutputMap
slug: Web/API/MIDIOutputMap
tags:
  - API
browser-compat: api.MIDIOutputMap
---
{{APIRef("Web MIDI API")}}  {{SeeCompatTable}}

The **`MIDIOutputMap`** read-only interface of the [Web MIDI API](/en-US/docs/Web/API/Web_MIDI_API) provides a {{jsxref('Map')}}-like interface to the currently available MIDI output ports. Although it works like a map, because it is read-only, it does **not** contain `clear()`, `delete()`, or `set()` functions.

## Specifications

{{Specifications}}

## Browser compatibility

{{Compat}}
