Confirm your outputs
Select and confirm only the physical MIDI hardware destinations you trust. Virtual ports and uncertain endpoints are safely filtered out.
Emergency MIDI Panic button
MIDI FLUSH
Instant 16-channel Panic sequences for external synthesizers and hardware setups.
When hardware notes hang or controllers lock up during a studio session or live performance, MIDI FLUSH transmits standard MIDI CC Panic messages directly from your menu bar or via a customizable global hotkey.
Coming to the Mac App Store
How it works
One click. 16 channels cleared.
Trigger from menu or key
Trigger Panic instantly from the menu bar lightning bolt icon or with your customized global keyboard shortcut.
Transmit standard CCs
MIDI FLUSH sends a 16-channel Panic sequence (CC 64, CC 123, CC 120, Pitch Bend Center) across all confirmed physical outputs.
Built for musicians
Focus on performance, not stuck notes.
MIDI / FLUSH
Menu bar resident
Fast, discreet presence in your macOS menu bar with no intrusive main application window.
MIDI / FLUSH
Global keyboard shortcut
Trigger emergency Panic instantly from any DAW or full-screen session with conflict detection.
MIDI / FLUSH
Safe device filtering
Transmits exclusively to confirmed physical outputs, avoiding virtual or unconfirmed ports.
MIDI / FLUSH
One-time purchase
No subscriptions, in-app purchases, or recurring fees. Buy once, use offline.
MIDI / FLUSH
Fully offline operation
No user accounts, no advertisements, no analytics, and zero background network requests.
MIDI / FLUSH
Native Swift & CoreMIDI
Engineered natively for macOS using Apple CoreMIDI for fast, dependable transmission.
Local-first
Zero telemetry. Completely offline.
MIDI FLUSH operates entirely offline within Apple's App Sandbox. It contains no network code, no analytics, no ads, and no accounts. Your confirmed device preferences and shortcut stay securely on your Mac.
In the app
Simple controls. Confirmed destinations.
MIDI FLUSH is independent software developed for macOS. It transmits standard MIDI CC sequences exclusively to confirmed physical MIDI outputs. It does not alter audio streams, mute mixer channels, or affect software virtual instruments inside your DAW. External hardware response depends on connected synthesizers responding to standard MIDI All Notes Off (CC 123) and All Sound Off (CC 120) messages.