MIDI Editor

Fast piano-roll editing with drag gestures, grid snapping, multi-track playback, and instant MIDI import/export. Everything runs in your browser.

melodic track drum track

Transport

Tempo Bars

Loop Metronome Snap

Loop start (beats) Loop end (beats)

Playhead (beat)

Left-click to add/move, drag an edge to resize, right-click to delete. Drag blank space to marquee-select. Hold shift for additive selection.

Drop a .mid file anywhere or click import.

Sample MIDI

Selected velocity

Drag inside the velocity lane to shape dynamics per note.

Velocity lane Drag vertically to edit

Ready. Click to add a note. Hover shows beat, pitch & velocity.