Keep your MIDI SysEx work organized, see what is inside it, and review exactly what you are about to send.
NEW IN 5.0 — PATCH NAMES AND PATCH TOOLS
The inspector lists the patch names inside recognized dumps: Yamaha DX7 voices and 32-voice banks, Korg minilogue, monologue, prologue and minilogue xd programs, Sequential programs (Prophet '08, Prophet-6, OB-6, Rev2, Prophet-5, Take 5), Novation Circuit patches and Behringer DeepMind 12 programs. A name appears only when the published layout matches exactly; community-documented layouts are labelled. Build a 32-voice DX7 bank from voices anywhere in your library, save a single voice or rename one into a new copy. Edit bytes as hex with live validation, repair a Roland, Yamaha or XG checksum into a new copy, import SysEx from Standard MIDI Files (.mid), and find identical files or the same sound saved under another name. Audition a destination with a test note, chord, program change or All Notes Off, and use documented patch-request presets and published pacing gaps.
CAPTURE AND INSPECT
Monitor chosen CoreMIDI sources, inspect complete and partial messages, and keep the reported source and termination details. Import .syx and .mid files, review framing and supported checksum layouts, and compare changed byte regions. Unknown device formats remain unverified.
A REVIEWED TRANSFER
Prepare a frozen plan with the destination, exact message order and effective pacing before confirming a send. Use remembered device pacing profiles, follow progress and cancel later messages. One transfer runs at a time. The app never silently replays an interrupted operation.
SNAPSHOT COMPARE
Save copies of selected messages before a session or repair, compare two snapshots and share a JSON change report. Comparison never sends MIDI.
KEEP A RECEIPT
Review the latest 200 local transfer receipts with message hashes, destination, pacing and completion, cancellation or failure. CoreMIDI completion records the operating system's result; it does not prove the instrument received or stored a patch.
A RECOVERABLE WORKSPACE
Name and tag messages, add notes and build ordered send sets. Export the complete workspace, inspect a backup before replacing current work, and preserve original bytes when recovering unreadable storage. Backups include exact SysEx bytes and metadata. They are unencrypted; the integrity checksum detects accidental corruption and does not authenticate the author.
EXPLORE WITHOUT AN INSTRUMENT
Nine labeled sample messages and a capture walkthrough introduce the workbench. An explicitly offline pipeline check exercises validation, review, pacing and capture through an internal transport. It sends no MIDI and does not test hardware compatibility.
CONNECTIONS YOU CHOOSE
Use compatible CoreMIDI interfaces or endpoints supplied by the system and other apps. Optional Bluetooth MIDI pairing is available. Real capture and transmission require a compatible connection and the instrument's documented settings. Syxloom performs foreground MIDI work.
No account, subscription, in-app purchase, advertising, tracking or developer-operated upload service. Your library, profiles and receipts stay local unless you choose a connection or sharing destination.
SysEx can change device settings and stored patches. Follow the exact model's MIDI implementation and backup procedure. Syxloom does not certify firmware updates or automatically restore hardware.
