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Best Software Synthesizers in 2026

Making music with a software synthesizer means choosing an instrument and a way to fit it into your setup. Compare synthesis engine and plugin formats, along with standalone app availability and supported platforms. MPE support and included presets can help distinguish the listed capabilities, while free-plan availability and paid-from pricing give you cost details to weigh. DefleMask, Cardinal, and VCV Rack are among the entries, as are Vital and Dexed. Consider the kind of sound-making workflow you have in mind, then compare the engines, formats, and platform support shown for each option.

38 apps
Research read 23 Sept 2026
How the order is worked out

1

Cardinal

Free plan Open source APILinuxMac+3

Cardinal provides a large bundled modular-synthesis environment in standalone and plugin forms. Its fixed module set and variant format limits are important to consider before choosing it.

9.2 Free plan Visit site
2

Dexed

Free plan Open source iPhoneLinuxMac+1

Dexed pairs a DX7-modeled synth with librarian functions and a broad set of automatable parameters.

9.1 Free plan Visit site
3

Helm

Free plan Open source LinuxMacWindows

Helm offers a broad set of synthesis and modulation tools in standalone and plugin forms, and is free software. Its beta status and outstanding bugs are worth considering.

8.9 Free plan Visit site
4

Surge XT

Free plan Open source LinuxMacWindows

Surge XT offers a broad synthesis and modulation feature set at no cost, with plugin and standalone use.

8.6 Free plan Visit site
5

Vital

Free plan Open source LinuxMacSelf-hosted+1

Vital offers wavetable creation, modulation and sound-shaping tools across three desktop operating systems.

8.6 Free plan · paid from $25 Visit site
6

DefleMask

Free plan AndroidiPhoneLinux+2

DefleMask combines system-specific sound tools, sequencing, and several export formats in a cross-platform tracker.

7.5 Free plan Visit site
7

Sonic Pi

Free plan LinuxMacWeb+1

Sonic Pi offers code-based music creation in a browser and an offline desktop app. Choose the desktop app if you need the listed low-latency audio interfaces, OSC, or Ableton Link.

7.2 Free plan Visit site
8

SynthMaster 3

Free plan iPhoneMacWindows

SynthMaster 3 offers a modular structure, multiple synthesis methods, editing tools, and routing options. The demo has notable restrictions, so review its limits before relying on it for regular work.

6.9 From $99 Visit site
9

SynthMaster One

Free plan iPhoneMacWindows

SynthMaster One offers a broad set of wavetable synthesis and sequencing tools, with desktop and iOS versions.

6.9 From $49 Visit site
10

Synth1

Free plan MacWindows

Synth1 offers a range of synthesis and sound-shaping tools in a free DAW plugin. Check the listed operating-system and processor requirements, and note that Mac presets are a separate download.

6.8 Free plan Visit site
11

VCV Rack

Free plan LinuxMacWindows

VCV Rack offers a free, open-source standalone option alongside Rack Pro's DAW and plugin features.

6.8 Free plan · paid from $149 Visit site
12

Aalto

Free trial MacWindows

Choose Aalto if you want a semi-modular plug-in with patchable voice modules and per-voice sequencing.

6.3 From $179 Visit site
13

Abyss 2

Free trial MacWindows

Choose ABYSS 2 if its gradient sound design, sample-derived palettes, and included effects and sequencing suit your music workflow.

6.3 90-day trial Visit site
14

ANA 2

Free trial MacWindows

Choose ANA 2.5 if you want a DAW synthesizer with wavetable tools, multisamplers, effects and a large preset collection.

6.3 14-day trial Visit site
15

DUNE 3

Free trial MacWindows

Choose DUNE 3 if you want a synthesizer with several synthesis methods, detailed wavetable editing, arpeggiators, and a broad set of plug-in formats.

6.1 30-day trial Visit site
16

Novum

Free trial MacWindows

Novum focuses on layered granular sound design with multiple synthesis and modulation options.

6.0 From $179 · 90-day trial Visit site
17

Repro

Free trial LinuxMacWindows

Repro combines two distinct synths with sequencer, effects and polyphonic options in a plug-in that requires host software.

6.0 From €179 Visit site
18

RAPID

Free trial MacWindows

RAPID offers layered synthesis, a sizable listed sound library, and an additional effects plugin in the full version.

5.9 Visit site
19

PlasticSynth

Free plan Web

5.8 Free plan Visit site
20

Spire

Free trial MacWindows

Spire offers a paid synthesizer with a broad listed format range, two desktop platforms, and a substantial included sound collection.

5.8 From $189 Visit site
21

SynthMaster 2

Free trial iPhoneMacWindows

Choose SynthMaster 2 if you want a semi-modular instrument with varied synthesis methods, substantial preset libraries and multiple desktop plug-in formats.

5.8 From $49 Visit site
22

Sylenth1

Free trial MacWindows

Sylenth1 offers a broad virtual-analog synthesis engine with substantial polyphony, modulation, effects, and presets.

5.7 From €139 Visit site
23

Falcon

Paid MacWindows

Choose Falcon if you want a modular instrument with sampling, synthesis, a large factory library and flexible standalone or plugin use.

5.6 From $299 Visit site
24

Thorn

Free trial MacWindows

Thorn offers spectral synthesis, modulation, effects, and sequencing as a plugin instrument. Check host compatibility and operating-system requirements before using the 14-day trial.

5.3 14-day trial Visit site
25

chipspeech

Paid LinuxMacWindows

chipspeech offers a specific vocal-synthesis emulation purpose with both standalone and plugin use. Check that its supported format matches your host before paying the one-time price.

5.2 From $75 Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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