MIDI 2.0 · MIDI-CI · SYSEX

See what your
MIDI is doing.

Smidy is a powerful MIDI analysis and editing toolbox for musicians, developers and everyone who wants to look beyond the surface of MIDI.

Download Smidy Free V3.0 Beta Explore features
Smidy 3.0 featuring MIDI 2.0
WHAT IS SMIDY?

One tool. A complete view
of your MIDI.

Smidy combines MIDI playback, editing and detailed event inspection in a single workspace. From traditional MIDI events to modern MIDI 2.0 data, everything stays visible and accessible.

Smidy MIDI editor and event list
THE SMIDY WORKSPACE

See the music.
See the data.

A complete MIDI workspace with playback, track controls, editing and detailed event inspection — all in one place.

01

MIDI 2.0

Work with Universal MIDI Packets and explore the new world beyond MIDI 1.0.

02

MIDI-CI

Discover devices, profiles and capabilities — and see what MIDI devices tell each other.

03

SysEx

Inspect and edit manufacturer-specific data with a semantic approach to SysEx.

04

Property Exchange

Explore the structured data that modern MIDI devices can exchange through MIDI-CI.

MIDI 2.0

Right where you need it.

Smidy doesn't treat MIDI 2.0 as a separate world. MIDI 2.0 endpoints appear alongside traditional MIDI devices and can be assigned directly to tracks.

SMIDY · MIDI DEVICE SELECTION
Smidy MIDI device selection showing MIDI 2.0 endpoints and MIDI WinMM / MME devices
MIDI 2.0 Endpoints Discover available MIDI 2.0 endpoints through Windows MIDI Services.
Traditional MIDI Continue working with conventional MIDI WinMM / MME devices.
One workflow Assign MIDI devices to tracks without switching between different worlds.
MIDI-CI IN ACTION

Smidy doesn't just show MIDI-CI.
It understands it.

Smidy can decode and present MIDI-CI communication semantically — from Discovery and Profiles to Property Exchange — while keeping the original SysEx data available in the event stream.

SMIDY · MIDI-CI / PROPERTY EXCHANGE
Smidy showing a MIDI-CI communication with the Bome MIDI-CI Responder and decoded Property Exchange data
01Discovery InquiryFind out who is there.
02Property ExchangeDiscover what the device can provide.
03ResourceListAsk which resources are available.
04DeviceInfoRead structured device information.

This demonstration uses the Bome MIDI-CI Responder through its MIDI WinMM / MME interface. Smidy also works with the modern MIDI 2.0 endpoint infrastructure provided by Windows MIDI Services.

PROPERTY EXCHANGE

Structured data.
Real media.

Property Exchange is more than text. Smidy lets you work comfortably with media data defined by the MIDI Association — including images — directly inside the Property Exchange data.

SMIDY · MIDI-CI PROPERTY EXCHANGE
Smidy Property Exchange data containing a PNG image with mediaType image/png
Drag & drop Drop supported media directly into the Property Exchange data instead of dealing with the raw encoded payload.
MMA-defined media Work with media types defined by the Property Exchange specification — not just plain text.
See what is really there The data remains part of the MIDI stream while Smidy presents it in a form you can actually understand.
ONE MORE THING In Smidy Full, Property Exchange media can also be exported.
THE NEXT GENERATION

Welcome to
MIDI 2.0.

MIDI 2.0 introduces a much richer language for communication between applications and instruments. Smidy is built to make that communication understandable.

From UMP messages to MIDI-CI and Property Exchange — Smidy lets you inspect what is really happening.

MIDI 2.0 data is maintained internally at its native high resolution and sent at the appropriate resolution when using MIDI 2.0 output.

SMIDY · MIDI MONITOR
UMP
  Message Type     0x4
  Group             0
  Status            Note On
  Channel           1
  Note              60
  Velocity          0x7FFF

MIDI-CI
  Discovery         Inquiry
  Version           1.2
  Property Exchange Ready
SMIDY FREE

Not a trial.
A real MIDI tool.

Smidy Free is a fully usable MIDI tool rather than a crippled trial version. It is nevertheless a time-limited Microsoft MIDI 2.0 preview build. Import MIDI files, record MIDI, edit your data and export your work — and explore Smidy's semantic SysEx and MIDI-CI features along the way.

Import · Edit · ExportWork with MIDI files from start to finish.
Record MIDICapture incoming MIDI data directly in Smidy.
MIDI-CI includedExplore Discovery, Profiles and Property Exchange communication supported by Smidy.
Semantic SysExRead and edit supported Roland GS, Integra-7, Yamaha XG and Universal MIDI messages in meaningful terms.
FREE

Use Smidy.
Really use it.

Some advanced functions are reserved for Smidy Full. The core workflow isn't.

No crippled MIDI editor. Full core workflow.
SMIDY IN ACTION

Small tools.
Big difference.

Smidy's MIDI editing functions are designed to make precise operations feel immediate and understandable. Sometimes a little animation says it better.

SMIDY · CUT MIDI EVENTS
01

Cut

Select the range you want to remove and let Smidy take care of the MIDI events.

SMIDY · CHANGE PITCH / KEY ALL
02

Change Pitch / Key All

Shift the pitch or key of the selected MIDI material with a single focused operation.

SMIDY · SPLIT MIDI CHANNELS
03

Split MIDI Channels

Separate MIDI material by channel and keep the result clear and easy to work with.

START EXPLORING

Smidy Free

Download the free preview and explore MIDI 2.0, MIDI-CI and Smidy's powerful MIDI tools.

Download Smidy Free V3.0 Beta
IMPORTANT · MICROSOFT MIDI 2.0 PREVIEW

Smidy Free will stop starting after November 30, 2026.

This preview uses pre-release Microsoft Windows MIDI Services components. It is not for production use. After November 30, 2026, Smidy will no longer start.

Windows · Free to use · Full version coming later