Instead of PlasticSynth

Best PlasticSynth Alternatives in 2026

Taken from Software Synthesizers, where PlasticSynth is listed too, in the same order.

1. 1

   Cardinal

   Cardinal is a free, open-source modular synthesizer based on VCV Rack, available as a standalone app and as a plugin.

   • Free plan
   • Open source
   • Windows · macOS · Linux · Web
   8.5 Club score
   Visit Facts and plans
2. 2

   Vital

   Vital is a spectral-warping wavetable synthesizer for Linux, macOS and Windows.

   • Free plan
   • Open source
   • Windows · macOS · Linux · Self-hosted
   8.3 Club score
   Visit Facts and plans
3. 3

   DefleMask

   DefleMask is a multi-system chiptune tracker for composing video-game music for classic consoles and computers.

   • Free plan
   • Windows · macOS · Linux · iPhone and iPad
   8.2 Club score
   Visit Facts and plans
4. 4 S3

   SynthMaster 3

   SynthMaster 3 is a modular software synthesizer available as a plug-in and standalone app for Windows and macOS.

   • Free plan
   • Windows · macOS · iPhone and iPad
   8.1 Club score
   Visit Facts and plans
5. 5

   Surge XT

   Surge XT is a free, open-source virtual instrument plugin and hybrid synthesizer for making music.

   • Free plan
   • Open source
   • Windows · macOS · Linux
   8.1 Club score
   Visit Facts and plans
6. 6 H

   Helm

   Helm is a software synthesizer for creating electronic music on a computer.

   • Free plan
   • Open source
   • Windows · macOS · Linux
   8.1 Club score
   Visit Facts and plans
7. 7 D

   Dexed

   Dexed is a free synth plugin and standalone app modeled on the Yamaha DX7.

   • Free plan
   • Open source
   • Windows · macOS · Linux · iPhone and iPad
   8.0 Club score
   Visit Facts and plans
8. 8

   VCV Rack

   VCV Rack is a virtual modular platform based on Eurorack synthesizers, available for Linux, macOS, and Windows.

   • Free plan
   • Windows · macOS · Linux
   7.8 Club score
   Visit Facts and plans
9. 9 SP

   Sonic Pi

   Sonic Pi is a free, open-source tool for composing and performing music with code.

   • Free plan
   • Windows · macOS · Linux · Web
   7.8 Club score
   Visit Facts and plans
10. 10 SO

    SynthMaster One

    SynthMaster One is a wavetable software synthesizer for iOS, macOS, and Windows.

    • Free plan
    • Windows · macOS · iPhone and iPad
    7.7 Club score
    Visit Facts and plans
11. 11 R

    Repro

    Repro is a synthesizer plug-in from u-he that combines Repro-1 and Repro-5 in one product and installer.

    • Free trial
    • Windows · macOS · Linux
    7.5 Club score
    Visit Facts and plans
12. 12 A

    Aalto

    Aalto is a semi-modular software synthesizer with a patchable interface for creating sounds.

    • Free trial
    • Windows · macOS
    7.3 Club score
    Visit Facts and plans
13. 13 S2

    SynthMaster 2

    SynthMaster 2 is a two-layer semi-modular software synthesizer and effects plug-in for Windows, macOS, and iOS.

    • Free trial
    • Windows · macOS · iPhone and iPad
    7.3 Club score
    Visit Facts and plans
14. 14 S

    Synth1

    Synth1 is a free software synthesizer plugin for computer music production on Windows and macOS.

    • Free plan
    • Windows · macOS
    7.3 Club score
    Visit Facts and plans
15. 15 R

    RAPID

    RAPID is a paid polyphonic hybrid synthesizer built around eight sound-shaping layers.

    • Free trial
    • Windows · macOS
    7.3 Club score
    Visit Facts and plans
16. 16

    ANA 2

    • Free trial
    • Windows · macOS
    7.1 Club score
    Visit Facts and plans
17. 17

    Kilohearts Ultimate

    Kilohearts Ultimate is a Windows and macOS bundle of audio plugins centered on the Phase Plant modular synthesizer.

    • Free trial
    • Windows · macOS
    7.1 Club score
    Visit Facts and plans
18. 18 S

    Sylenth1

    Sylenth1 is a virtual analog VSTi synthesizer for music production on Windows and macOS.

    • Free trial
    • Windows · macOS
    7.1 Club score
    Visit Facts and plans
19. 19 A2

    Abyss 2

    ABYSS 2 is a synthesizer plugin for musicians and creative sound design on macOS and Windows.

    • Free trial
    • Windows · macOS
    7.1 Club score
    Visit Facts and plans
20. 20 D3

    DUNE 3

    DUNE 3 is a software synthesizer for Windows and macOS that builds on DUNE 2.

    • Free trial
    • Windows · macOS
    7.1 Club score
    Visit Facts and plans

The whole list: Software Synthesizers