30 Free Synth VST Plugins

Vital offers a spectral warping wavetable engine that reshapes sound in bold and creative ways. It changes waveform harmonics to produce new tones and textures, letting you turn samples or even text into wavetables using built-in conversion and editing tools.

This synth is fully visual, showing how filters, LFOs, and modulations shape your sound in real time. With drag-and-drop modulation, wide stereo effects, and audio-rate control, Vital helps sound designers and producers explore detailed, evolving tones across music styles.

Related: Free Vital Presets

Surge XT offers a powerful hybrid synthesizer engine that combines different types of synthesis for creative sound design. It includes three oscillators per scene, many filter options, and a rich modulation system. With over 2,800 presets and 700 wavetables, it gives producers many sound possibilities.

Surge XT also supports special features like MPE, microtuning, and multiple scene modes for layered or split setups. Its open-source design allows regular updates and community input. With flexible routing and a wide range of effects, it’s useful for crafting both modern and classic synth sounds.

OB-Xd offers the classic analog warmth of the vintage Oberheim OB-X with modern features for today’s music makers. It delivers a wide and lively tone through micro detuning, unison voices, and blendable filters that shape everything from smooth pads to bold leads.

The plugin includes enhanced oscillators, adjustable filters, and support for MTS-ESP micro-tuning to refine pitch and tone. With simple controls for modulation, envelopes, and noise, OB-Xd helps producers craft expressive sounds that fit many styles, from retro synthwave to modern electronic tracks.

TyrellN6 offers a classic analog-style sound in a compact and free software synthesizer. It includes two main oscillators, filters related to u-he’s Diva, and a built-in chorus for added depth. The synth keeps everything on one screen, making sound design smooth and direct.

The 2025 beta update improves performance and adds features like CLAP and MTS-ESP microtuning support. It also introduces a modern preset browser, easier soundset installation, and updated scaling options. TyrellN6 continues to deliver warm tones and flexible controls for creating rich, expressive sounds.

Podolski is a free virtual analog synthesizer made by U-He. It focuses on simplicity, offering one oscillator, one filter, and one envelope, supported by an arpeggiator/sequencer and built-in effects. Despite its minimal design, it delivers warm tones and clear, expressive sound control.

Podolski offers useful tools like WaveWarp for smooth waveform shaping, flexible filter drive, and two LFOs for modulation. With over 300 presets, NKS support, and a resizable interface, it’s a solid choice for crafting basses, leads, or rhythmic patterns across most major music platforms.

Surrealistic MG-1 Plus offers a classic analog sound inspired by the famous 1980s Realistic MG-1 synthesizer. It combines two oscillators, a smooth ladder filter, and a distinct polyphonic section to create warm basses, sharp leads, and rich vintage tones—completely free to use.

It includes over 130 presets, tempo-syncable LFOs, MIDI control, and DAW automation for flexible sound shaping. With added features like ring modulation, glide, and expanded octave ranges, the MG-1 Plus delivers an authentic retro vibe with modern reliability and creative range.

OS-251 offers a digital take on classic synthesizer sounds, delivering warm, lo-fi tones crafted through its unique DSP design. Inspired by the JUNO-106, it blends old-school character with modern reliability, using digital alias noise to create rich textures and punchy presence.

With up to 24 voices of polyphony, flexible filters, an LFO section, and built-in chorus and unison modes, OS-251 keeps things simple yet powerful. Every control is clearly laid out, helping music creators shape sounds quickly and stay focused on what matters most—making music.

TAL–Bassline offers a classic analog-style bass experience in a modern plugin format for Windows and Mac. It recreates the sound and feel of vintage hardware with a warm tone shaped by its special -18dB low-pass filter and responsive nonlinear envelopes.

This synth includes band-limited oscillators, a sub-oscillator, and a simple arpeggiator to craft smooth basslines or sharp acid tones. With features like unison mode, MIDI automation, and precise control of sliders, TAL–Bassline helps producers build solid, character-rich low-end sounds quickly.

TAL-NoiseMaker offers a classic analog-style sound in a modern software synth. It includes two main oscillators, a sub-oscillator, and flexible filters for shaping tone. With adjustable envelopes, LFOs, and built-in effects, it can create anything from smooth pads to sharp leads.

The plugin comes with 256 presets that cover many electronic music styles, making it helpful for quick ideas or sound design. Its modulation options, filter drive, and random detune add movement and depth, giving music creators a wide range of creative tools in one free package.

Dexed is a free FM synth plugin by Digital Suburban that models the sound and features of the classic Yamaha DX7. It offers six operators, real-time VU meters, and 144 automatable parameters, giving music makers detailed control over tone, pitch, and modulation.

Dexed also works as a DX7 patch editor and SysEx manager, letting users load, save, and organize sounds from original hardware. With DX7 and TX7 compatibility across Windows, Mac, and Linux, it delivers authentic FM tones for keys, basses, and electronic textures.

Lokomotiv offers a warm analog-style sound in a simple, modern package. It uses a high-definition oscillator, morphing sub-oscillator, and multimode filter to create bright leads, deep basses, and smooth pads. Its design helps shape sounds quickly without feeling cluttered or complex.

With 64 ready-to-use presets, adjustable envelopes, and a one-shot LFO, Lokomotiv gives producers flexible tone control. The plugin supports both Windows and Mac, making it easy to add classic synth textures, refined modulation, and full-sounding layers to any music project.

VK-1 Viking Synthesizer offers a detailed recreation of a classic analog monophonic synth, combining three variable wave oscillators, dual ladder filters, and deep modulation options. Its advanced DSP design captures the warmth, depth, and character of vintage hardware while supporting modern 64-bit VST systems.

It includes a wide range of presets for basses, leads, and synthwave tones, along with adjustable drift, drive, and envelope settings for extra control. Musicians can shape expressive analog-style sounds with smooth filters, rich harmonics, and flexible modulation tools for creative sound design.

Helm offers a free and open-source way to make electronic sounds on your computer. It works on Windows, Mac, and Linux, either on its own or as a plugin in most major formats. With two main oscillators, filters, and effects, Helm gives flexible control over your sound design.

Its clear layout includes a step sequencer, modulation options, and visual tools like an oscilloscope for quick feedback. Since it’s open-source, you can study, modify, and share it as you like. Helm is a reliable choice for exploring synthesis and building original electronic sounds.

Tunefish4 is a compact virtual analog synthesizer made by Brain Control for Windows, Mac, and Linux. It combines additive wavetable synthesis with a range of filters and effects to create diverse sounds. The plugin supports polyphony, modulation options, and flexible noise control for sound design.

It includes adjustable effects like chorus, flanger, delay, reverb, EQ, distortion, and formant for shaping tones. With two LFOs, two ADSRs, and a modulation matrix, creators can craft leads, basses, or ambient textures. Tunefish4 delivers detailed control in a small, efficient package.

PG-8X is a virtual analog synthesizer based on the Roland JX-8P and PG-800. It uses two digitally controlled oscillators, resonant filters, envelopes, chorus, and up to 12 voices. Sync, ring modulation, noise, and six play modes support basses, leads, pads, and effects.

PG-8X reads and writes JX-8P SysEx data and includes 128 preset slots across four banks. MIDI Learn maps hardware controls to parameters, while aftertouch, portamento, pitch bend, tempo-synced LFO, and voice modes provide control. It runs on Windows in VST and AU formats.

Sonigen Modular offers a flexible modular synthesis experience that lets you connect and route sound modules just like real hardware. It includes oscillators, filters, envelopes, and effects, giving creators complete control over shaping their tones and exploring new sound designs from smooth pads to detailed textures.

This plugin uses an automatic layout system to keep patches clear and organized, even with complex setups. Its responsive modulation and high sound quality make it suited for both simple and layered sounds, giving music makers plenty of creative room while keeping the process straightforward.

Synth1 offers a classic virtual analog sound that mirrors the NORD LEAD2 hardware synth. It includes two oscillators, a sub-oscillator, and a range of filters and modulation tools. With its arpeggiator, delay, and chorus options, it’s well-suited for shaping rich electronic tones.

This free plugin supports up to 32 voices and includes 128 presets, giving creators many ready-to-use starting points. Its FM and ring modulation features let you craft sharp leads, deep bass, and evolving pads on both Windows and Mac systems.

Sinnah is a free virtual-analog synthesizer built around one complex oscillator and a polyphonic resonant delay network instead of a standard resonant filter. Five waveshapes, harmonics, noise, tuning, and eight-voice polyphony cover tones from clean to dense and experimental.

Its loopable ADSR envelope can change waveshape and harmonics, while delay lines create chorus, echoes, stereo spread, and feedback textures. High-pass, low-pass, and notch filters plus reverb shape the sound. Sinnah is available as 64-bit VST2 and AU for supported Mac and Windows systems.

Digits offers a phase distortion synthesizer inspired by classic CZ hardware. It includes over 100 presets, 3 LFOs, and analog-style filters to shape rich, edgy tones. The plugin blends digital grit with smooth pads, sharp leads, and deep bass for a wide range of sounds.

With tools like resonance control, bitcrush effects, and modulation options, Digits lets producers shape motion and texture quickly. Its small window keeps the layout simple, while features like aftertouch support and chorus effects make it ready for creative sound design on any platform.

TAL-U-No-62 is a polyphonic virtual analog synthesizer based on the JUNO-62, with six voices and band-limited oscillators. It includes a syncable LFO, pulse-width control, sub oscillator, noise, chorus, and 20 presets for creating basses, leads, pads, and other sounds.

Its 24 dB low-pass filter offers resonance, self-oscillation, envelope and LFO control, while the high-pass filter removes low frequencies. Fast ADSR envelopes, velocity-sensitive filter control, MIDI learn, tempo sync, and Windows and Mac support add sound-shaping options.

RA Mowg offers a faithful software take on the classic Minimoog Model D synthesizer. It captures the original’s warmth and power through detailed modeling of its oscillators, filter behavior, and modulation response. The plugin focuses on tone and playability while keeping controls simple and familiar.

This monophonic synth includes features like smooth glide, noise control, and a built-in feedback loop for added grit. Designed for a 48 kHz sample rate, it delivers a true analog-style sound that cuts through mixes, making it a solid choice for leads and basses.

Freemoog offers a classic analog-style sound inspired by the famous Minimoog, with modern digital flexibility. It features three oscillators and allows up to eight notes to be played at once. Designed in Blender 3D, the interface is visually clear and simple to program.

This plugin provides full control over filters, envelopes, and modulation for shaping warm basses, sharp leads, or evolving pads. Built for Windows in 32-bit VST format, Freemoog keeps its tone raw and expressive, giving producers a reliable tool for vintage-style synth sounds.

Sixth Month June offers a classic analog synth sound inspired by vintage keyboards like the Roland Juno 6. It includes sawtooth and pulse wave oscillators, a noise generator, and a smooth low-pass filter for shaping tone. The built-in arpeggiator helps create rhythmic note sequences automatically.

This plugin also features chorus and delay effects that add depth and space to your sounds. With envelope and LFO controls for movement and tone shaping, Sixth Month June gives producers tools to craft warm pads, bright leads, and retro-inspired textures on Windows systems.

Free Alpha is a free synthesizer plugin by Linplug that gives music creators a classic subtractive synth experience. It features two oscillators, a flexible filter, and a chorus effect for shaping warm or sharp tones. With 32-note polyphony, it delivers smooth and expressive sounds.

Free Alpha offers two envelopes and three LFOs for detailed motion and modulation. The built-in matrix connects sound controls for creative design. Its 50 presets provide a quick start for exploring pads, leads, and textures. Available for Windows and Mac, it’s a solid tool for any studio setup.

Model Mini is a free analog-style synth plugin for Windows made by Elektrostudio. It recreates the classic sound of the Minimoog, offering three oscillators, noise options, and a warm, vintage tone. You can shape sound using filters, envelopes, and tuning controls for smooth bass and lead sounds.

Model Mini offers key controls like glide, modulation, and waveform adjustment to refine your tone. Its simple layout makes it easy to adjust filters, loudness, and pitch. This plugin is best for music creators who want classic analog textures in a compact digital tool.

OP-X offers the classic warmth of vintage analog synths in software form. Using six independent voices, it recreates the character and depth of legendary hardware units. The 12dB filter stays rich even at high resonance, making pads, leads, and bass lines come alive with smooth tone and texture.

OP-X Free includes 11 selected sounds and a streamlined interface for quick access to core features. For more control and sound variety, users can upgrade to OP-X Player or the full OP-X version. Together, they form a clear path from simple preset use to deep analog-style sound design.

ASynth offers classic analog-style tones in a simple virtual format. It features two oscillators, three circuit-modeled filters, and six-voice polyphony for shaping warm leads, basses, and textured pads. Its core design focuses on giving producers authentic analog character with flexible tone control.

The plugin includes controls for oscillators, filters, and envelopes, making sound design direct and creative. Adjust waveforms, fine-tune pitch, and shape filter drive or resonance to craft varied sounds. ASynth runs on Windows as a 32-bit VST and remains valued for its clear, punchy output.

ODsay offers a classic analog synth experience that recreates the sound and feel of the ARP Odyssey. It includes two oscillators for shaping warm, duophonic tones with sawtooth, square, and pulse waves. Extras like ring modulation and noise generation let you build gritty or smooth sound textures.

Its filters and envelope controls allow precise tone shaping, from sharp resonant sweeps to mellow leads. With modulation options like LFO, sample-and-hold, and glide, ODsay gives music creators the tools to design expressive, vintage-style synth sounds for any project.

Multipoly offers the sound and feel of the classic Moog Multimoog in a simple VST plugin. It’s built from circuit-inspired design but focuses on creativity instead of perfect hardware accuracy. With no presets, you shape every tone from the ground up.

This plugin gives you full control over oscillators, filters, modulation, and envelopes to craft warm basses, leads, or experimental tones. Its clear interface helps you explore sound layering, pitch bending, and filter shaping for detailed and dynamic synth performances.

Model Pro offers an authentic recreation of the classic Moog Prodigy analog synthesizer. It features two oscillators with sawtooth, triangle, and pulse waves, along with an LFO and ADS envelope for detailed tone shaping. The 24 dB lowpass filter adds warm, vintage-style depth to your sounds.

This plugin captures the character of classic analog gear, ideal for retro leads, basslines, and synthwave tones. Though limited to 32-bit, it remains popular for its rich sound and simple control layout. Model Pro brings classic analog warmth to digital music production at no cost.