CodeFN42
VeloScaler
VeloScaler by CodeFN42 is a free MIDI effect plugin for Windows that lets you adjust and scale MIDI note velocities with up to 5 customizable bands.
VST2MIDI effects
Instruments, effects, and hidden gems
Free plugins: MIDI effects
Browse 15 reviewed free midi effects plugins for Windows, with compatibility, formats, interface previews, and installation details.
2140reviewed plugins
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15 plugins
Every reviewed plugin matching the current filters.
Fanan Team
Randomidi Free
Randomidi Free is a random multi-channel arpeggiator designed for live performance. It allows musicians to control up to 16 VST instruments simultaneously and switch presets instantly using MIDI CC buttons.
VST2MIDI effects
CodeFN42
RandARP
RandARP by CodeFN42 is a free MIDI arpeggiator plugin for Windows featuring various randomization options and standard arpeggiator controls like octaves, note length, and note order.
VST2MIDI effects
LibreArp contributors
LibreArp
LibreArp is a free MIDI effect plugin that generates arpeggios from chord input in any VST3 host on Windows, Mac, and Linux.
VST2MIDI effects
ToneCarver
Harmony Rotator
Harmony Rotator is a free VST2 plugin for Windows that generates up to 3 harmony notes per input MIDI note using predefined offsets with four voice options and scale snapping.
VST2MIDI effects
CodeFN42
Chordz
Chordz by CodeFN42 lets you play full chords by pressing single notes on your MIDI keyboard or drum-pad, simplifying complex chord progressions with ease.
VST2MIDI effects
Topaz Productions
ChordworX
ChordworX by Topaz Productions transforms a single note into up to seven-note chords or arpeggios with 98 presets including standard and jazzy chords, plus custom chord addition.
VST2MIDI effects
CodeFN42
CCStepper
CCStepper is a free MIDI CC step sequencer by CodeFN42 that sends MIDI CC data to control softsynths, effects, or external hardware with up to 8 sequences and 64 steps each.
VST2MIDI effects
Davi Santos
DvnMIDIMeter
DvnMIDIMeter is a free MIDI plugin for Windows that adjusts note velocity based on metric accents across common time signatures. It offers per beat accent control and uses input velocity to shape the effect depth.
VST2MIDI effects
Meesha
Apollo
Apollo is a dual channel 16-step MIDI sequencer and arpeggiator with pitch, velocity, and random controls, offering flexible MIDI output.
VST2MIDI effects
Fanan Team
999gen2
999gen2 by Fanan Team is a free rhythmic MIDI arpeggiator for Windows that generates up to 999 seeded arpeggios driven by chords, controlling external VST instruments with customizable speed, note length, octave range, and note diversity.
VST2MIDI effects
Fanan Team
999
999 is a free MIDI VSTi arpeggiator for Windows that triggers other VSTis with up to 999 unique seeded arpeggios driven by chords. Customize speed, note length, octave range, and diversity for each arpeggio and switch between them easily.
VST2MIDI effects
Quilcom
MIDIMUS
MIDIMUS by Quilcom is a free Windows VST2 plugin that offers mouse-over MIDI control based on the mouse interaction feature of the TERRORMIN plugin.
VST2MIDI effects
kawa
kawaChord2 free
kawaChord2 free is a MIDI chorder plugin that sends triad chords as MIDI notes with four editing modes. It supports placing chords on tracks in some DAWs and is available as a free VST2 plugin for both 32- and 64-bit Windows.
VST2MIDI effects
mucoder
hypercyclic
hypercyclic is an LFO-driven MIDI arpeggiator, gate effect, and step sequencer that mangles sustained MIDI input chords to drive other MIDI instruments. It operates on the edge between chaos and order to create unique rhythmic patterns.
VST2MIDI effects
The free-plugin pulseUpdated Oct 16, 2026
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