One music sequencer for all major platforms, both desktop and mobile
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Helio Workstation is free and open-source music sequencer, designed to be used on all major platforms.

Why another sequencer?

Most of the DAW interfaces often seem overcomplicated, and they only tend to get more and more bloated over time. Many of them are commercial, proprietary-licensed and almost none of them support all major operating systems at the same time.

Helio is an attempt to rethink a music sequencer to create a tool that feels right.

It aims to be a modern music creation software, featuring linear-based sequencer with a clean interface, high-performance C++ core, integrated version control providing intelligent synchronization between devices, saved undo history, translations to many languages and more.


Linux Windows macOS iOS
master Linux Build Status Windows Build Status macOS Build Status iOS Build Status
develop Linux Build Status Windows Build Status macOS Build Status ios Build Status

Basic build instructions

  • Git clone with submodules: git clone --recurse-submodules
  • Install dependencies:
    • On Windows, get ASIO SDK (which can't be redistributed in this project due to licensing restrictions, but you may use ThirdParty/ASIO/get_asio_sdk.ps1 powershell script to download and extract the SDK source).
    • On Linux, you'll need to have the following packages installed: libfreetype6-dev libx11-dev libxinerama-dev libxrandr-dev libxcursor-dev libxcomposite-dev mesa-common-dev freeglut3-dev libcurl4-openssl-dev libasound2-dev libjack-dev libc++-dev; the makefile assumes you've set up either export CONFIG=Debug, export CONFIG=Release32 or export CONFIG=Release64 before you make.
  • Pick the right project for your OS from Projects directory and build.



Helio is a work in progress and still there are many essential features missing, so pull requests are appreciated.

Your ideas are also welcome: friendly and lightweight UI is the main development priority in this project, and if you have a vision on how to improve user experience in music composing, feel free to share it.

You could also make a new translation for your native language or proofread any of existing translations, including English, German, French, Italian, Spanish and Russian.

License and credits

GNU GPL v3 © Peter Rudenko.

See LICENSE for more information.

Built-in piano samples are the part of Salamander Grand Piano by Alexander Holm, distributed under CC-BY license.

Used fonts and icons taken from various free icon fonts (see Icomoon) are licensed under SIL Open Font License and CC-BY.

All Helio logos and translations are also distrubuted under CC-BY.

Translation and proofreading credits (in alphabetical order)

Afrikaans - Jacques Viviers
Brazilian Portuguese - Dario Silva
Italian - Claudio Stano
Japanese - Kotone Itaya
Korean - YoungGwang Jeon, DaYeon Lee, HyoHee Jeon
Polish - Dawid Bugajski