MIDIchron for Mac

The MIDI 2.0 bridge for real-world files.

MIDIchron is a focused macOS utility for musicians, producers, remixers, educators, students, sound designers, and MIDI developers who need a practical way to move supported files between MIDI 1.0 and the newer MIDI 2.0 Clip/SMF2 ecosystem.

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MIDIchron batch conversion window converting MIDI files with a conversion log — MIDIchron can convert individual files, multiple files, or folders while showing progress, warnings, and saved output details.

Why It Matters

MIDI 1.0 is everywhere. MIDI 2.0 is arriving.

MIDI 1.0 has decades of music, apps, instruments, lessons, demos, and production files behind it. MIDI 2.0 brings Universal MIDI Packet data, higher-resolution musical values, and the MIDI Clip/SMF2 file format into the conversation.

MIDIchron turns that transition into a simple Mac workflow: choose an output folder, drop in supported MIDI files, review the conversion, and use the converted copies in the next tool in your chain.

Built for compatibility testing, creative handoff, classroom demos, and everyday MIDI file prep.

What It Converts

Two-way conversion, handled conservatively.

Convert supported MIDI 1.0 Standard MIDI File Format 0 files to MIDI 2.0 Clip/SMF2 copies.
Convert supported MIDI 1.0 Standard MIDI File Format 1 files to MIDI 2.0 Clip/SMF2 copies.
Convert supported MIDI 2.0 Clip/SMF2 files back to MIDI 1.0 Standard MIDI File copies when safe representation is possible.
Preserve original source files and write converted copies to the output folder you choose.

Features

Made for fast conversion, honest feedback, and clean handoff.

Drag-and-drop conversion

Drop a MIDI 1.0 or supported MIDI 2.0 file onto the main window, Finder app icon, or Dock icon.

Folder and batch workflows

Convert folders and mixed batches, including supported files found inside subfolders.

Conversion log

Display progress, successful conversions, warnings, and files that need attention.

Optional reports

Create detailed text reports when you want a saved record for testing, teaching, or troubleshooting.

Reveal converted files

Jump straight to the saved output when the conversion is finished.

Local Mac processing

No accounts, uploads, analytics, ads, or cloud conversion are needed for the core MIDIchron workflow.

Developer-friendly test files

Create MIDI 2.0 files from known MIDI 1.0 material and test safe down-conversion behavior.

Compatibility guardrails

MIDIchron reports unsupported files or unsafe conversion cases instead of pretending every MIDI concept maps perfectly.