v1.4.0 — macOS · Windows coming soon
Virtual MIDI Network Router

Your DAW sees it as hardware. The data travels over Ethernet.
Virtual MIDI ports, zero configuration, mDNS peer discovery. LAN-native.

Download Free Trial See Features
42B min packet size
<1ms LAN latency
∞ simultaneous peers
0 IPs to configure

Zero config. Real time. LAN native.  —  No cables. No drivers. No surprises at showtime.

Config

One INI file.
That's all it takes.

Define your virtual MIDI ports, set the direction, choose the network interface. MIDInet handles the rest — peer discovery, routing, transport. No IP addresses to manage.


The [STARTUP COMMANDS] section runs console commands automatically at launch — perfect for unattended stage rigs.

# config.ini — MIDInet configuration # MODE: TX | RX | BIDIR | OFF # NETWORK: auto | interface_name | IP [MIDI_SYNC] MODE=RX LOOPBACK=OFF NETWORK=auto [MIDI_VIDEO] MODE=BIDIR LOOPBACK=ON NETWORK=en0 [MIDI_LIGHT] MODE=TX LOOPBACK=OFF NETWORK=192.168.1.10 [MIDI_CAM] MODE=BIDIR LOOPBACK=OFF NETWORK=auto [STARTUP COMMANDS] monitor on filter realtime filter sysex discovery 3
The Console

Your only interface.

No GUI. No preferences window. No menu bar. MIDInet runs entirely from a terminal REPL with command history, live monitoring, and instant peer visibility.

show — device status & peer table
MIDInet — mac14.local
NAME MODE LOOP NETWORK IP STATUS PEERS ────────────────────────────────────────────────────────────────────────────── MIDI_SYNC RX OFF auto 192.168.1.10 ✅ ok mac13 (TX) MIDI_VIDEO BIDIR ON en0 192.168.1.10 ✅ ok mac13 (TX) MIDI_LIGHT TX OFF auto 192.168.1.10 ✅ ok mac13 (RX) MIDI_CAM BIDIR OFF auto 192.168.1.10 ✅ ok mac13 (TX) ────────────────────────────────────────────────────────────────────────────── 4 devices · 2 peers · mDNS interval 3s MIDInet >
monitor on — live MIDI stream
MIDInet — mac14.local
MIDInet > monitor on monitoring enabled [14:32:01.042] RX MIDI_SYNC Note On Ch.1 C4 Vel.64 ← [14:32:01.058] RX MIDI_SYNC Note On Ch.1 E4 Vel.72 ← [14:32:01.126] RX MIDI_SYNC Note On Ch.1 G4 Vel.68 ← [14:32:01.305] TX MIDI_LIGHT CC Ch.1 CC7 Val.100 → [14:32:01.481] RX MIDI_SYNC Note Off Ch.1 C4 Vel.0 ← [14:32:01.499] RX MIDI_SYNC Note Off Ch.1 E4 Vel.0 ← [14:32:01.512] RX MIDI_SYNC Note Off Ch.1 G4 Vel.0 ← [14:32:02.001] TX MIDI_VIDEO PC Ch.16 Prg.4 → MIDInet >
startup sequence
MIDInet — mac13.local
MIDInet v1.4.0 — Virtual MIDI Network Router alanpower Labs · azlive.io Platform: macOS (CoreMIDI) Hostname: mac13.local ──────────────────────────────── loading config.ini ... ✅ MIDI_SYNC RX auto → 192.168.1.12 ✅ MIDI_VIDEO TX auto → 192.168.1.12 ✅ MIDI_LIGHT RX auto → 192.168.1.12 ✅ MIDI_CAM TX auto → 192.168.1.12 registering mDNS services ... ✅ 4 services registered on _midinet._udp.local. initializing peers ... ↗ mac14.local joined (MIDI_SYNC TX · MIDI_VIDEO BIDIR · MIDI_LIGHT TX · MIDI_CAM BIDIR) running startup commands ... ready. MIDInet >
debug — network interfaces & MIDI devices
MIDInet — mac13.local
MIDInet > debug Network interfaces: lo0 127.0.0.1 en0 192.168.1.12 (Wi-Fi) en1 10.0.10.22 (Ethernet — Dante) utun3 (VPN — no IP) MIDI devices visible to system: MIDInet MIDI_SYNC (virtual destination) MIDInet MIDI_VIDEO (virtual source) MIDInet MIDI_LIGHT (virtual destination) MIDInet MIDI_CAM (virtual source) Focusrite Red 4Pre (physical) Roland Fantom 8 (physical) MIDInet >
Who it's for

More than one machine.
Less than zero cables.

MIDInet is for musicians, engineers, and technicians who run multiple computers in a studio or on stage and need them to speak MIDI to each other — without dedicated interfaces, MIDI-over-USB hubs, or manual network configuration. If you already have a LAN, you already have the cable.

Features

Everything you need.
Nothing you don't.

MIDInet is a purpose-built tool. Not a platform, not a framework — a router. Here is exactly what it does.

⟵⟶
Transport

Virtual MIDI over LAN

Virtual MIDI ports that your DAW and applications see as physical hardware. Data travels via UDP multicast on 239.0.100.1:21930. No special driver, no virtual loopback cable.

◉
Discovery

Zero Configuration

Peers discover each other via mDNS-SD (_midinet._udp.local.). Bring a second machine onto the network and it appears automatically. No IP addresses, no address book, no pairing step.

⬡
Routing

Per-NIC Binding

Each virtual port is independently bound to a specific network interface — Ethernet, Wi-Fi, Dante NIC. In multi-homed setups you control exactly which network carries which MIDI signal.

⇄
Modes

TX / RX / BIDIR

Every port has a configurable direction. TX: your DAW sends, data goes to the network. RX: network data arrives, your DAW receives. BIDIR: both simultaneously. LOOPBACK: TX port receives its own transmitted data for monitoring.

▶
Console

Interactive REPL

Full terminal REPL with command history. show · monitor · filter · reload · send · test · debug. Reload config without restarting the process. Filter monitor output by message type.

✓
Integrity

Packet Integrity

Every UDP packet carries a MNET magic header, version field, sender UUID, per-device sequence counter, microsecond timestamp, and CRC32. Malformed or corrupt packets are silently dropped.

⊕
Transport

Multicast Architecture

One TX port reaches all RX ports simultaneously. No unicast fan-out, no central broker, no server to maintain. The network handles distribution. Scope is LAN-only — data does not leave your subnet.

◼
Stage

Offline / Stage Ready

No internet connection required. No cloud, no license server, no telemetry. Runs on an isolated LAN. Startup commands in config.ini execute automatically — zero interaction needed on stage systems.

Console Reference

Every command.

Command Syntax Description
showshowStatus table for all virtual MIDI cards: mode, loopback, network, IP, status, connected peers
monitormonitor on|offEnable or disable real-time display of MIDI messages with timestamp, direction, card, and message type
filterfilter realtime|sysex|pc|short|offHide message types from monitor output. Multiple filters accumulate. off clears all filters
discoverydiscovery on|off|<seconds>Set mDNS peer discovery polling interval. Lower = faster detection, more CPU. Default: 3s
reloadreloadFull in-process restart: destroy all devices, re-read config.ini, recreate ports, re-register mDNS, run startup commands
sendsend <card> [note|cc|pc|realtime|sysex]Simulate a MIDI message from a card. Useful for testing transport without a physical MIDI source
testtest <device> <note>Send Note On (velocity 100) to a specific device. Quick connectivity test
debugdebugList all detected network interfaces with IPs and all MIDI devices visible to the system
configconfigShow loaded configuration summary: card count, startup commands
quit / exitquit | exitGraceful shutdown: deregister mDNS services, close sockets, exit
Pricing

Simple. One license. Lifetime.

No subscription. No activation server at runtime. Activate once, use forever on up to 2 computers.

Trial
Free
30 days · full features
  • All ports, all modes
  • Unlimited peers on LAN
  • Full console access
  • macOS (Windows pending)
  • 30-day activation window
Early Access
License
€49
early access · regular €89
  • Everything in Trial
  • Lifetime license
  • Up to 2 computers
  • Offline after activation
  • Free updates within major version
  • Email support
Activation via activation command in the MIDInet console. Max 2 simultaneous activations per license. Deactivation frees a slot.
Download

MIDInet v1.4.0

30-day free trial · full features · no credit card required

macOS
v1.4.0 · Apple Silicon + Intel · macOS 11+
  • macOS 11 Big Sur or later
  • Apple Silicon M1+ (recommended) or Intel
  • LAN with UDP multicast support
  • UDP port 21930 and mDNS (5353) unblocked
Download .dmg — macOS

Mount the DMG · drag MIDInet to Applications · launch from Terminal

⊞
Windows
Windows 10 / 11 · Windows MIDI Services
Windows MIDI Services implementation pending.
Coming soon.

Trial & Activation

MIDInet runs for 30 days without a license key. All features are fully available during the trial.

To activate, purchase a license and run the activation command in the MIDInet console:

MIDInet > activation MIDI-XXXX-XXXX-XXXX-XXXX ✅ License activated on this machine. Remaining slots: 1 / 2

Up to 2 computers can be activated simultaneously per license. Deactivating a machine frees a slot.

System Requirements

Network: All machines must be on the same LAN segment. UDP multicast must not be blocked. UDP port 21930 and mDNS port 5353 must be reachable between hosts.

Performance: MIDInet is a lightweight CLI binary. Typical RAM usage <15 MB. No GPU, no audio driver required.

Buy

MIDInet License

Lifetime license · up to 2 computers · offline after activation

Early Access
€49
limited time offer
Regular
€89
standard price

Secure payment via PayPal. You will receive your license key by email within minutes.

PayPal checkout — coming soon
Contact

Get in touch

For support, licensing questions, or feedback on MIDInet, write to info@azlive.io or use the form.

Web     azlive.io
VAT     IT03472740137