Alternatives

Products that do what Svmidi, a suckless virtual MIDI keyboard does

This is a minimal yet functional midi virtual keyboard written in C, using Xlib and asound or sndio. Tested on Linux and OpenBSD, replaces softwares such as VMPK.

1. 1BW
   BitMidi – Wayback machine for old-school MIDI files▲168

   2018 · bitmidi.com

2. 2FO
   Fully Open-Sourced Online MIDI Editor▲93

   2020 · signal.vercel.app

3. 3KS
   Keyboard Simulator – virtual keyboard designer▲210

   2020 · keyboardsimulator.xyz

4. 4
   Keeby for Windows▲94

   Satisfying mechanical keyboard sounds, now on Windows

   May 2026

5. 5MT
   Midibin – Turn Clojure code into MIDI music▲48

   2018 · midibin.com

6. 6
   LUMI Keys▲166

   Portable illuminated keyboard to that helps you learn music.

   2020

7. 7TZ
   The ZynAddSubFX open source musical synthesizer▲53

   2018 · zynaddsubfx.sf.net

8. 8
   Keeby▲150

   Mechanical keyboard sounds for your Mac

   Apr 2026

9. 9MS
   MIDI.space – WebMIDI and Audio Mashup for Finger Drumming▲50

   2015 · midi.space

10. 10
    iKeybo▲97

    Virtual laser projection multilingual keyboard & piano.

    2016

11. 11
    ChordViz▲75

    Build your own music visualizer for MIDI & audio

    23d ago · chordviz.ca

12. 12BV
    Bezie – Virtual MIDI controller for complex automation▲41

    2017 · bezie.io

13. 13T1
    TR-101 – A drum synth/sequencer made with Vue and the web audio API▲105

    2017 · inverted3.gitlab.io

14. 14
    Coffee Piano▲101

    Browser music and piano studio with visual harmony tools

    May 2026

15. 15OP
    OpenDeck – Platform for building MIDI controllers▲47

    2021 · github.com

16. 16
    Remidi▲91

    A sensor & gesture controlled wearable music instrument

    2016

17. 17VA
    Vuiet – a music player and explorer for Emacs▲101

    2020 · github.com

18. 18
    KeyOpera 2.0▲100

    Make every Mac keystroke sound uniquely yours

    Jul 2026 · mbirang.com

19. 19
    Mechvibes▲76

    Play mechanical keyboard sounds as you type

    2019

20. 20UA
    UPiano, a Piano in Your Terminal▲8

    Hello HN! This is a Python app I've built for fun, while learning the Textual library, it's a piano/synthesizer app that you can play with the keyboard + mouse. You can see a demo video of it here: https://www.youtube.com/watch?v=0VXit110PcA You need to install FluidSynth before using it: https://www.fluidsynth.org/ It uses the Python bindings pyFluidSynth library: https://github.com/nwhitehead/pyfluidsynth And the General User GS soundfont: http://www.schristiancollins.com/generaluser.php If you try it out, i'd love to…

    2023 · github.com

21. 21VW
    Vim-which-key: Vim port of emacs-which-key▲63

    2018 · github.com

22. 22
    Staccato▲85

    The AI Co-Writer for Music Producers & Composers.

    2022

23. 23
    Karabiner▲80

    Awesome, powerful keyboard remapper for OSX.

    2014

24. 24
    Vizhi▲68

    Mission control for Codex CLI on a Logitech MX keypad

    Jul 2026 · github.com

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