Jmantra Jdrummer v1.5 VST3 AU Win macOS Linux [FREE]

JDrummer is a free, open-source drum machine plugin built with JUCE, offering a 16-pad grid with velocity-sensitive playback and per-pad volume, pan, solo, and mute controls. It ships with 29 SoundFont drum kits covering acoustic, electronic, and specialty sounds, and you can load your own .sf2 files to expand the library. The groove browser organizes patterns into categories like basic beats, breakbeats, buildups, fills, and swing, with tempo-synced playback, preview, and drag-and-drop MIDI export. A composer lets you arrange multiple grooves on a visual timeline and export the full part as MIDI. The Groove Matcher analyzes audio files (WAV, MP3, FLAC, OGG, AIFF), detects BPM, and suggests matching grooves with similarity scores, automatically adding the best match to your composition. JDrummer runs as VST3 and AU on macOS, Windows, and Linux, making it suitable for hobby producers using FL Studio, Ableton Live, or Logic who want a flexible, expandable drum tool without spending money.