Here are the best free Omnisphere VST plugin alternatives you can use without spending money. These are great alternatives to the popular Omnisphere plugin by Spectrasonics.
The Omnisphere plugin has been a very popular synthesizer VST for music producers and musicians, but it is very expensive for many people since the Omnisphere plugin costs $500.
If the plugin is outside your budget, this list of Omnisphere alternatives may help. We have included free Omnisphere alternatives that work with both Windows and Mac.
Related: Best Free VST Plugins
Best Omnisphere VST Alternatives
We have included free Omnisphere alternatives that work for Windows and Mac. Check out if any of these plugins can help you with your music productions.
- Tunefish V4
- Mono Fury
- Free Alpha
- Odin 2
- Surge XT
- Superwave P8
- Sonigen Modular
Instructions: Click the links below to visit each free Omnisphere alternative. Look around each website for the download link or button. Do not install any suspicious software.
TyrellN6 is a compact, sporty synth with virtual analog architecture and classic sounds. Its versatile features include two oscillators, a noise and ring modulator for generating sounds, and a twin filter related to Diva (early model).
There are also analog-type ADSR envelopes, loopable or LFO-triggered. The skinnable UI makes the plugin easy to use. With over 580 factory presets, TyrellN6 is ideal for anyone who wants to create classic sounds.
- Analog oscillators
- Noise and ring modulation
- Twin filter architecture
- ADSR envelopes
- Loopable or LFO-triggered
- Skinnable UI
TyrellN6 | Windows / Mac
If you’re looking for faithful reproduction of the Yamaha DX7 sound engine, look no further than Dexed. This plugin synth is available on multiple platforms and in multiple formats, making it one of the most versatile options.
One of the best things about Dexed is that it offers 144 DAW automatable parameters, making it easy to get the perfect sound. The plugin also supports DX7 input and output Sysex messages so that you can use it with your favorite DAW.
If you’re worried about which operator is active, don’t be – each one has a real-time VU meter. So you’re sure to get the perfect sound every time.
- Faithful reproduction of the Yamaha DX7 sound engine
- Available on multiple platforms and in multiple formats
- 144 DAW automatable parameters
- Supports DX7 input and output Sysex messages
- Real-time VU meter for each operator
Dexed | Windows / Mac
3. Tunefish V4
Tiny yet powerful, Tunefish V4 is a virtual analog synthesizer that can be used for creating any music. Its additive synthesis-based wavetable generator and its noise generator can create any sound.
The lowpass, highpass, bandpass, and notch filter are available for shaping the sound. Whereas the 2 ADSRs and 2 LFOs can be linked to any important knob using the modulation matrix.
The supported effects are flanger, chorus, distortion, delay, reverb, EQ, and formant. The effects stack allows for any permutation of up to 10 effects. This plugin is a complete package and is ideal for any music producer looking for a powerful yet free Spectrasonics Omnisphere alternative.
This free plugin is a great alternative to paid plugins like the Reveal Sound Spire and Native Instruments Absynth.
- Additive synthesis-based wavetable generator
- Noise generator
- Lowpass, highpass, bandpass, and notch filter
- 2 ADSRs
- 2 LFOs
- Flanger, chorus, distortion, delay, reverb, EQ, and formant effects
- Effects stack allowing for any permutation of up to 10 effects
Tunefish V4 | PC / AU / Linux
4. Mono Fury
Mono Fury faithfully recreates the classic KORG Mono/Poly analog synthesizer, allowing you to create those iconic analog sounds used in countless hit records.
The plugin features four band-limited oscillators, a four-pole zero-delay feedback lowpass filter with self-oscillation, and a host of other modulation options to create your unique sounds.
Mono Fury also includes a monophonic/quadrophonic keyboard action, an arpeggiator with a sync-to-host option, and an additional tweak section for even more sound design possibilities.
This plugin’s parameters can be controlled via MIDI CC, making it easy to integrate into your existing setup. Its resizable user interface is perfect for both studio and lives use.
- Recreates the classic KORG Mono/Poly analog synthesizer
- Four band-limited oscillators
- Four-pole zero-delay feedback lowpass filter with self-oscillation
- Monophonic/quadrophonic keyboard action
- Arpeggiator with sync-to-host option
- Tweak section for additional sound design possibilities
- MIDI CC control for all parameters
- Resizable user interface
Mono Fury | Windows / Mac
5. Alpha – Free Omnisphere VST Alternative
This plugin synthesizer is a 32-note-polyphonic synthesizer based upon a classic subtractive design. It features 2 oscillator modules, a filter module, 2 envelopes, 3 LFO modules, a chorus effect, and an easy-to-use, powerful Modulation Matrix.
It is perfect for those looking for a simple yet effective way to create sound. So if you’re looking for a great alternative to Omnisphere, this synth is worth checking out.
- 2 Oscillators
- Subtractive Synthesis
- 32 Note Polyphony
- Chorus Effect
- Easy to Use Modulation Matrix
Plugin | PC / Mac
TAL-NoiseMaker is a virtual analog synthesizer with a great sound. It has volume ADSR, 2 LFOs with different running modes, and the adjustable master tune and transposes.
Up to 6 voices can be used with detune, detunes notes randomly, which is great for creating organic pads. The Juno chorus with different modes gives you a lot of space to work with your sound.
While the built-in reverb and delay are handy, the filter drive is what makes this synth shine. It’s easy to use, with no hidden panels, and has low CPU usage. Finally, there are 256 great presets that come with the program.
- Volume ADSR
- 2 LFOs
- Chorus effect
- Reverb and delay
- Low CPU usage
- 256 Presets
TAL-NoiseMaker | PC / Mac / Linux
Helm is a powerful synthesizer that runs an interactive visual interface. It features 32 voice polyphony with dual oscillators for live diversity of sound. The modulation system is powerful and offers live feedback to help create unique soundscapes.
With its 12 different waveforms and 7 filter types, you can create interesting sounds. It comes with a step sequencer and a simple arpeggiator for easy sound creation.
There are many modulation sources to choose from, making it a great choice for live performance or studio work. So, if you’re looking for a powerful alternative to Omnisphere, Helm is worth checking out.
- 32 voice polyphony
- 2 oscillators
- 12 different waveforms
- 7 filter types
- Modulation system with live feedback
- Step sequencer
- Lots of modulation sources
Helm | PC / Mac / Linux
Vital is a unique visual synthesizer that enables you to design sounds easily. Vital has high-quality oscillators and efficient unison, perfect for anyone looking to create professional sounds.
Additionally, Vital supports microtonal and MPE, perfect for advanced users who want to create unique sounds. It also includes key tracked LFOs, allowing you to create complex modulation.
- High-quality oscillators
- Efficient unison mode
- Supports microtonal and MPE
- Keytracked LFOs
- Easy sound design
Vital | PC / Mac / Linux
9. Odin 2
Odin 2 is a versatile synth with good sound quality that has excellent features like the 24-voice polyphonic sound, high-quality emulations of analog filters, and four onboard FX.
It is easy to use with a straightforward user interface and is a great choice for those looking for a good Omnisphere VST alternative.
- 24-voice polyphony
- Analog filter emulations
- Four onboard FX
- Straightforward user interface
Odin 2 | PC / Mac / Linux
10. Surge XT
Surge XT is an amazing hybrid synth that supports many synthesis techniques, offering a wide selection of filters, modulation options, and effects. It is perfect for any electronic music producer.
With MPE support and micro tuning, Surge XT is a must-have for any Omnisphere user. It will become one of your go-to synths for creating unique sounds.
- Hybrid synthesis engine
- MPE support
- Wide range of filters, modulation options, and effects
- Intuitive user Interface
Surge XT | PC / Mac / Linux
Synth1 is a software synthesizer modeled after the Nord Lead analog synth. With two oscillators, ring modulation, and FM modulation, it can create a wide range of sounds.
The 4-types of filters give it a very powerful sound, and the distortion can make it sound even more aggressive. Additionally, the legato mode is great for creating flowing melodies, and the portamento gives you even more control over the sound.
The 16-note polyphony is more than enough for most purposes, and the 128 presets give you a great starting point for creating your sounds. While the CPU load is very light, thanks to SSE instructions, you can still automate the sound to create even more interesting textures.
It is a great good alternative to Omnisphere that offers flexibility and power. If you’re looking for a good software synth, Synth1 is worth checking out.
- 2 oscillators with ring modulation and FM modulation
- 4 types of filters
- Legato mode
- 16-note polyphony
- 128 presets
Synth1 | Windows / Mac
If you’re looking for a realistic Oberheim OB-X emulation, look no further than OB-Xd. This synth is capable of emulating the original OB-X and creating new and unique sounds.
It has a blendable multimode filter, making it easy to create the perfect sound. With its easy-to-use interface, OB-Xd is perfect for beginners and pros alike.
- Easy to use interface
- Oberheim OB-X emulation
- Blendable multimode filter
OB-Xd | PC / Mac / Linux
If you’re looking for an easy-to-use spectral synth with tons of effects, Zebralette is a great option. It’s perfect for beginners with just a single oscillator and 16-slot waveset. This synth can create some truly unique sounds.
With support for polyphonic aftertouch, you can get expressive with your playing. Additionally, the built-in effects (chorus/phaser, EQ, delay) add even more possibilities for sound design.
- Single oscillator with 16-slot waveset
- Built-in effects (chorus/phaser, EQ, delay)
- Polyphonic aftertouch support
Zebralette | PC / AU / Linux
14. Superwave P8
Superwave P8 is a virtual analog synthesizer. It has 8 note polyphonic operation, main volume control, mono/polyphonic control, portamento control, and MIDI CC control with learning capability, making it perfect for music production.
Additionally, the 64 high-quality presets make it easy to get started with this powerful software. So, if you’re looking for a greate alternative to Omnisphere, be sure to check out Superwave P8.
- 8 note polyphonic
- 64 high quality presets
- MIDI CC control with learning capability
- Main volume control
- Mono/polyphonic control
- Portamento control
Superwave P8 | Windows
15. Sonigen Modular
Sonigen Modular gives you all the flexibility and freedom of classic modular synthesis, with high-quality, process-efficient sound on your CPU. The user interface is fast and intuitive, with a mostly automatic layout.
You also get higher quality modulation control and processing for a more expressive sound design. Because it is process-efficient, you can use it for live performance without overloading your CPU.
- Modular synthesis engine that is process-efficient on your CPU
- Intuitive and fast user interface
- High-quality modulation control and processing
- Live performance-friendly
Sonigen Modular | Windows
Kairatune is a powerful and versatile synth designed to produce crisp, tight sounds for electronic music production. Its fast and intuitive workflow makes it easy to produce unique lead and bass sounds and shiny SFX sounds.
With its simple interface, Kairatune is a great choice for both beginners and experienced producers alike. If you’re looking for a free alternative to Spectrasonics Omnisphere, Kairatune is worth checking out.
- Designed for electronic music production
- Fast and intuitive workflow
- Simple interface
Kairatune | Windows / Mac
Is Omnisphere a VST?
Yes, Omnisphere by Spectrasonics is a synthesizer VST plugin that works with both Windows and Mac. The Omnisphere sound library is 60GB, includes 14,000 sounds, and 9,223 patches.
What Does Omnisphere Cost?
Omnisphere by Spectrasonics currently costs $499 USD. You can buy Omnisphere 2 through the Spectrasonics website or through authorized resellers.
We hope you found this list of free Omnisphere VST plugin alternatives helpful.