Alternatives and similar repositories for helm:

Users that are interested in helm are comparing it to the libraries listed below

• mtytel / vital
  Spectral warping wavetable synth
  ☆1,618Updated last year
• surge-synthesizer / surge
  Synthesizer plug-in (previously released as Vember Audio Surge)
  ☆3,216Updated this week
• zynaddsubfx / zynaddsubfx
  ZynAddSubFX open source synthesizer
  ☆983Updated this week
• michaelwillis / dragonfly-reverb
  A set of free reverb effects
  ☆931Updated 8 months ago
• asb2m10 / dexed
  DX7 FM multi plaform/multi format plugin
  ☆2,894Updated this week
• christophhart / HISE
  The open source framework for sample based instruments
  ☆1,101Updated last month
• kmatheussen / radium
  A graphical music editor. A next generation tracker.
  ☆871Updated 3 weeks ago
• Tracktion / tracktion_engine
  Tracktion Engine module
  ☆1,233Updated this week
• webprofusion / OpenAudio
  A list of open source audio software projects (Apps, Plugins and Libraries). Please contribute more links or open source your own plugins…
  ☆2,022Updated last month
• jatinchowdhury18 / AnalogTapeModel
  Physical modelling signal processing for analog tape recording
  ☆1,134Updated 3 months ago
• free-audio / clap
  Audio Plugin API
  ☆1,857Updated this week
• monocasual / giada
  Your Hardcore Loop Machine.
  ☆1,756Updated last month
• DISTRHO / Cardinal
  Virtual modular synthesizer plugin
  ☆2,370Updated last week
• VCVRack / Rack
  The virtual Eurorack studio
  ☆4,088Updated last month
• helio-fm / helio-sequencer
  Libre music sequencer for desktop and mobile platforms
  ☆3,162Updated last month
• plugdata-team / plugdata
  Pure Data as a plugin, with a new GUI
  ☆1,666Updated this week
• TheWaveWarden / odin2
  Odin 2 Synthesizer Plugin
  ☆579Updated 2 months ago
• csound / csound
  Main repository for Csound
  ☆1,261Updated this week
• steinbergmedia / vst3sdk
  VST 3 Plug-In SDK
  ☆1,672Updated 5 months ago
• amsynth / amsynth
  Simple software synthesizer for Linux
  ☆442Updated this week
• muse-sequencer / muse
  MusE is a digital audio workstation with support for both Audio and MIDI
  ☆672Updated last month
• airwindows / airwindows
  This contains all the Airwindows audio open source code
  ☆859Updated this week
• steinbergmedia / vstgui
  A user interface toolkit mainly for audio plug-ins
  ☆893Updated last week
• zrythm / zrythm
  a highly automated and intuitive digital audio workstation - official mirror
  ☆2,358Updated 3 weeks ago
• rorywalsh / cabbage
  Framework for developing audio plugins with the Csound programming language.
  ☆519Updated last week
• iPlug2 / iPlug2
  C++ Audio Plug-in Framework for desktop, mobile and web
  ☆1,968Updated this week
• olilarkin / wdl-ol
  Enhanced version of Cockos' iPlug - A simple-to-use C++ framework for developing cross platform audio plugins and targeting multiple plug…
  ☆937Updated 3 years ago
• DISTRHO / DPF
  DISTRHO Plugin Framework
  ☆682Updated 2 weeks ago
• pierreguillot / Camomile
  An audio plugin with Pure Data embedded that allows to load and to control patches
  ☆919Updated 10 months ago
• bitwig / dawproject
  Open exchange format for DAWs
  ☆801Updated last month