Best Software Synthesizers in 2026
Updated
34ranked
0free plans on this page
€9.95/molowest paid tier
9 Oct 2026last checked
0 of the 9 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 26 | chipspeechWindows · Mac · Linux | Two bars | — | — | 3 of 6 | — | 5.0 |
| 27 | NovumWindows · Mac | One bar | — | — | 2 of 6 | — | 5.0 |
| 28 | Battery 4Windows · Mac | No signal | — | — | 2 of 6 | — | 4.9 |
| 29 | Kontakt 8Windows · Mac | No signal | — | — | 2 of 6 | — | 4.9 |
| 30 | Sylenth1Windows · Mac | No signal | — | — | 2 of 6 | €9.95/mo | 4.9 |
| 31 | SynthEditWindows · Mac · Linux | One bar | — | — | 3 of 6 | — | 4.9 |
| 32 | ThornWindows · Mac | No signal | — | — | 2 of 6 | — | 4.9 |
| 33 | SpireWindows · Mac | No signal | — | — | 2 of 6 | — | 4.8 |
| 34 | VOCALOID3 Library kokoneWindows | No signal | — | — | 1 of 6 | — | 4.8 |
Compare all 9 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Synthesis engine | Plugin formats |
|---|---|---|---|---|---|---|---|---|
| 26 | chipspeech | 5.0 | No | — | No | 75 one-time | — | VST3, Audio Units, CLAP, AAX |
| 27 | Novum | 5.0 | No | — | No | 179 one-time | granular | AU, VST3, AAX |
| 28 | Battery 4 | 4.9 | No | — | No | 199 one-time | — | — |
| 29 | Kontakt 8 | 4.9 | No | — | No | 299 one-time | — | vst3, au, aax |
| 30 | Sylenth1 | 4.9 | No | €9.95/mo | No | — | analog_modeling | VST, VST3, AU, AAX |
| 31 | SynthEdit | 4.9 | No | — | No | — | — | VST3, Audio Unit (AU); experimental JUCE export enables additional formats |
| 32 | Thorn | 4.9 | No | — | No | — | — | VST2, VST3, AU, AAX |
| 33 | Spire | 4.8 | No | — | No | 189 one-time | — | AU, AAX, CLAP, VST2/VST3 |
| 34 | VOCALOID3 Library kokone | 4.8 | No | — | No | 77.84 one-time | — | — |
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