Mirror Codex · public browser MIDI laboratory

Map what you have in your browser.

Connect a local MIDI controller, press pads, turn knobs, move faders, and build a small Mapping Universalis table without installing anything.

Precise scope: this page reads MIDI devices attached to the visitor's own computer through Web MIDI. It does not connect to the private Bastion studio, does not use Azure Dev Tunnels, and does not prove MIDI 2.0 endpoint interoperability.

MIDI 2 Language

Mirror Codex treats each local gesture as a sentence: device, channel, message type, number, value and semantic name. This is the Mapping Universalis language layer that prepares a clear path toward UMP and MIDI 2 workflows without claiming a completed physical MIDI 2 endpoint test.

1 · Connect MIDI

Use Chrome or Edge on HTTPS for the smoothest Web MIDI support. Your browser will show its own permission prompt.

MIDI input

MIDI output (optional)

Detected devices

3 · Mapping table

2 · Capture a gesture

Name a target, click learn, then press or move something on your controller.

Mapping name

Mayan Traktor Virtual JSON

Load a virtual Traktor template, then press your own controller to replace each slot with local MIDI gestures.

Mayan Traktor virtual mapping rig with Maschine MK2, Traktor Kontrol X1, Komplete Kontrol M32 and Hercules DJControl Mix

Download preset JSON

Last event

No MIDI event yet.

4 · Export JSON

This is the portable record: device, channel, MIDI type, controller/note number, value, and the Mapping Universalis label you assigned.