Windows

miditool runs on Windows over WinMM. The one platform gap is virtual ports: Windows has no native way for an application to create a MIDI port that other applications can open, so the default output virtual="miditool Out" cannot work there. The standard fix is loopMIDI, a small free utility that creates loopback MIDI ports.

Setup

1. Install loopMIDI and create a port. The default name works; this page assumes a port named loopMIDI Port.
2. Point miditool’s output at it with device= instead of virtual=:

miditool.kdl

input "MPK"                     // substring of your keyboard's port name
output device="loopMIDI"        // substring of the loopMIDI port's name

shuffle-lock seed=42

3. In your DAW, select the loopMIDI port as the MIDI input.

miditool doctor checks for this setup and warns when no loopMIDI port exists:

warn  no loopMIDI port; install loopMIDI and create one, then use `output device="loopMIDI"`

Notes

• hide=true on the input node is a CoreMIDI feature; on Windows it is ignored with a note. Use a DAW with per-track MIDI input selection instead: see Other DAWs.
• miditool bench needs virtual ports on both ends and cannot run on Windows.
• Everything else, including scenes, hot reload, and the web remote, works the same as on other platforms.