A pattern-based arpeggiator with a unique Pattern + Chords workflow.
Route MIDI your way and discover arpeggios you wouldn’t have written yourself.
Download FreeEdit the Pattern lane and the Chords lane. Most arps only give you a pattern. Arponaut lets you shape both.
Send DAW MIDI into the Pattern lane, the Chords lane, or both. Mix “played” material with edited parts inside the plugin.
Because chords are editable too, routing MIDI into the Pattern lane opens up combinations that standard arpeggiators just can’t do.
Play, tweak, and experiment until it surprises you. Perfect for finding fresh melodies and rhythmic ideas in seconds.
22 - 04 - 2026
VST3 only worked on MacOs 15 & M-chip, now also on Intel chip and on MacOs 11 to 14
Windows version unchanged
14 - 04 - 2026
Mac version is now signed and notarized
Windows version unchanged
08 - 04 - 2026
Added dark mode
Added instructions in routing manual for Cubase and Luna
Saving dark mode and helpbox visibility globally, will remember these settings on opening new Arponaut plugin
Added startup pattern and chords for less friction for new users
Set default "Midi DAW to" to disabled
27 - 03 - 2026