KBplugs
Synthegrated 80
Synthegrated 80 by KBplugs is a free Moog-inspired modular synthesizer emulation for Windows 32-bit systems in VST2 format. It delivers authentic vintage circuit-inspired sounds without presets.
VST2Synths
Instruments, effects, and hidden gems
Free plugins: Synths
Browse 587 reviewed free synths plugins for Windows, with compatibility, formats, interface previews, and installation details.
2140reviewed plugins
79%install-ready
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All categoriesDrum kits · 29Drum synths · 14Drum machines · 9Single drums · 27Groove / sequencers · 10Percussion · 30Drums · 30Guitar & bass · 28Piano & keys · 79Brass & wind · 44Folk & ethnic · 53Orchestral · 24Samplers · 52Loop & scratch · 12Synths · 587Organs · 30
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587 plugins
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KBplugs
Synthegrated 15A
Synthegrated 15A by KBplugs is a free VST2 synthesizer plugin for Windows that emulates the Moog modular Model 15, inspired by its circuits but not aiming for exact hardware accuracy. It features no presets, offering a raw modular experience.
VST2Synths
KBplugs
Synthegrated 12A
Synthegrated 12A by KBplugs is a free VST2 synthesizer plugin for Windows that emulates the Moog modular Model 12 circuitry without aiming for exact hardware accuracy. It offers an authentic modular experience with no presets, just like the original.
VST2Synths
KBplugs
Syntha-kon
Syntha-kon by KBplugs is a free VST2 synthesizer plugin for Windows inspired by the Steiner-Parker Synthacon, featuring authentic circuit emulation without presets.
VST2Synths
superwave
Stylophone
The Stylophone by superwave is a monophonic VSTi replicating the iconic pocket synthesizer made famous by David Bowie. It features a sample-based oscillator and optional vibrato for authentic vintage sound.
VST2Synths
Full Bucket Music
Stigma
Stigma is a free synthesizer plugin by Full Bucket Music that emulates the 1979 KORG Sigma KP-30 Performing Synthesizer, featuring two band-limited oscillators and nineteen presets with individual filters, envelopes, and amplifiers.
VST2Synths
Samsara Cycle Audio
RITM III
RITM III by Samsara Cycle Audio is a free classic Soviet era analogue synthesizer clone in VST2 format for Windows.
VST2Synths
Quilcom
Razorblade
Razorblade is a free synth plugin inspired by the classic 80's Ensoniq ESQ-1 and SQ-80, featuring authentic waves extracted from the original ROMs.
VST2Synths
Full Bucket Music
Ragnarok
Ragnarok by Full Bucket Music is a free virtual analog synthesizer plugin inspired by a unique 1980 custom-built hardware synth. It features standard VA architecture with an oscillator section feeding a dynamically controlled filter.
VST2Synths
Hermann Seib
PPG Wave
PPG Wave is a free VST2 synthesizer plugin for Windows that emulates the Waldorf PPG 2.2 V6 with 8 voices and stereo output.
VST2Synths
KBplugs
PolyStep
PolyStep is a synthesizer plugin inspired by the Quasimidi Polymorph with an original circuit emulation approach. It offers an experimental sound design experience without presets.
VST2Synths
L-Day
Poly-LD8D
Poly-LD8D is an 8-voice polyphonic synthesizer inspired by the Korg Poly 800, featuring dual oscillators with scalable overtones, ADBSSR envelopes, a low-pass resonance filter, noise generator, and LFO.
VST2Synths
KBplugs
Polly
Polly by KBplugs is a free Moog Polymoog inspired synthesizer emulation for Windows in VST2 format. It delivers analog-style synthesis without presets.
VST2Synths
Phuturetone
Phutura
Phutura is a free virtual synthesizer inspired by the 80's Alpha Juno hardware synth, famous for the Hoover sound. It excels at producing edgy leads and chord stabs for dark, energetic music styles like Techno and Rave.
VST2Synths
2DaT
OBXD
OBXD by 2DaT is a free VST2 synthesizer plugin emulating classic Oberheim OB-X, OB-Xa, and OB-8 synths, enhancing select features for improved sound.
VST2Synths
KBplugs
OB-2
OB-2 by KBplugs is a free VST2 synthesizer plugin for Windows inspired by the Oberheim OB-1, offering a classic style without presets.
VST2Synths
KBplugs
Nebula
Nebula by KBplugs is a free synthesizer plugin inspired by the Alesis SuperNova. It delivers a raw synthesis experience without presets, reflecting the straightforward nature of the original hardware.
VST2Synths
KBplugs
Mx-Jr
Mx-Jr is a Windows-only OB-Mx synthesizer emulation by KBplugs that captures the spirit of the original Oberheim circuit design without aiming for exact hardware accuracy. It features no presets, encouraging hands-on programming.
VST2Synths
The free-plugin pulseUpdated Oct 7, 2026
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