Hydrogen (software)

Hydrogen
Hydrogen screenshot
Developer	Alessandro Cominu
Stable release	1.2.6 / July 29, 2025; 15 months ago (2025-07-29)
Written in	C++, Qt
Operating system	Linux, macOS, Microsoft Windows
Type	Drum machine
License	GPL-2.0-or-later
Website	www.hydrogen-music.org
Repository	github.com/hydrogen-music/hydrogen

Hydrogen is an open-source drum machine created by Alessandro Cominu, an Italian programmer who goes by the pseudonym Comix. Its main goal is to provide professional yet simple and intuitive pattern-based drum programming.

Hydrogen was originally developed for Linux, and later ported to Mac OS X and Windows. The graphical user interface for the application uses Qt library, and all code is released under GPL-2.0-or-later.

Features

These are some of the features of Hydrogen:

• Pattern-based sequencer, with unlimited number of patterns and ability to chain patterns into a song.
• 192 ticks per whole note with individual level per event and variable pattern length.
• Unlimited instrument tracks with volume, mute, solo, pan capabilities.
• Multi-layer support for instruments (up to 16 samples for each instrument).
• Sample editor with basic cut and loop functions.
• Time-stretch and pitch functions.
• Time-line with variable tempo.
• Single and stacked pattern mode.
• Ability to import/export song files.
• Support for LADSPA effects.
• Real-time slide control for swing.
• Option to slightly randomize velocity, time, pitch and swing functions to give a more "human" playback.
• Multiple patterns playing at once.
• Various drumkits available to download (Rock, Jazz, Electric, Percussions...), plus support to create a custom drumkit.

See also

• Free audio software
• Linux audio software

References

External links

Wikimedia Commons has media related to:
Hydrogen (software) (category)

• Official website
• Hydrogen on GitHub
• Hydrogen on SourceForge

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