We all know that struggle of tweaking envelopes for hours just to get a pluck that actually has some bounce and soul to it. You need that organic, vibrating physical energy, but you don’t always have a live session player on speed dial. Enter PartialString.

Why PartialString is a Game – Changer for Your Mix & Workflow

This plugin isn’t just playing back static samples. It uses real – time physical modeling to calculate exactly how a string vibrates in the real world. Here is why this joint is about to become your go – to for melodic sauce:

• Living, Breathing Tones: Because it calculates displacement in real – time, every note feels organic. It just sits in the mix effortlessly, giving your tracks that authentic acoustic bounce.
• Next – Level Modulation: You can sweep the pickup position with an LFO all the way up to audio rates. This creates crazy AM – style sidebands for when you want to flip an acoustic pluck into an aggressive, futuristic lead.
• Lush Pad Capabilities: Adjust the string decay and let the dampers behave like a piano. Boom – you just turned a simple pluck synth into a massive, evolving pad machine that fills out your stereo image.
• Smart CPU Protection: Physical modeling can completely fry your CPU, especially on long, low notes. PartialString automatically adjusts the polyphony (up to 10 – voice) based on what your rig can handle, so your DAW will not crash when you are in the zone.

Tech Specs (Keep it Light)

• Format: WiN, MAC, LiNUX (Only 16.2 MB – super lightweight!)
• Synthesis Type: Finite – difference time – domain (FDTD) physical modeling.
• Polyphony: Up to 10 simultaneous strings (Dynamically auto – scales to save your computer’s brain).
• Optimization: Real – time pitch shifting for low notes to prevent CPU overload.
• Mac Users: Runs best on Apple Silicon native (M – series) DAWs. Running it through Rosetta 2 will eat up your CPU, so keep it native for that smooth workflow!

The Verdict

If you are tired of sterile plucks and want a synth that actually moves and breathes, PartialString is an absolute must – have. It brings that expensive, mathematical physical modeling tech into a totally free, easy – to – tweak package. Whether you need a realistic bass pluck, a weird AM – modulated bell, or an atmospheric pad, this plugin definitely slaps.

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PartialString.1.0.3  (16  MB )

VST

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That is exactly where Psychedelic Keys Lite 2.0 enters the chat. This joint is designed specifically to inject that dark, twisted energy into your productions instantly.

Why Psychedelic Keys Lite 2.0 is a Game-Changer for Your Mix & Workflow

This isn’t just another rompler; it’s a vibe curator. The developers ran these samples through high-end analog hardware before they even got to the GUI, which means you’re getting that warm, saturated sound right out of the box. Here is why this plugin earns its keep on your hard drive:

• Instant Analog Warmth: Because every instrument was processed with analog gear, precision EQs, and lush reverbs, the sounds sit in the mix perfectly without needing a ton of extra processing.
• Low End Theory: It comes packed with Deep Bass, Subs, and 808s that actually rattle the trunk. No more weak low-end; these sounds have serious weight.
• Texture for Days: Between the “Eerie Bells” and “Dark Psychedelic Pads,” you can create instant atmosphere. Plus, the authentic Vinyl Noise layer (recorded from real wax) gives you that lo-fi, dusty texture that makes a beat feel lived-in.
• Performance Ready: It’s multi-sampled with velocity layers, meaning when you play it on your MIDI keyboard, it feels dynamic and expressive, not static and robotic.

Tech Specs (Keep it Light)

Here is what you need to know to get this running in your DAW:

• File Size: 730 MB / 980 MB (It’s a decent size, meaning the sample quality is high).
• Mac Compatibility: macOS High Sierra through the latest version.
• Chip Support: Native support for Intel and Apple Silicon (M1 – M4).
• Windows Compatibility: Windows XP through Windows 11.
• Vibe Check: 100% Certified Dark & Twisted.

The Verdict

If you produce Trap, dark Hip Hop, or experimental beats, Psychedelic Keys Lite 2.0 is a no-brainer. It solves the problem of “clean” digital sounds by giving you something that sounds sampled and processed from day one. It sparks creativity, saves you CPU on effect chains, and frankly, just slaps.

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Psychedelic Keys-WiN  ( 297 MB )

Psychedelic Keys-MAC  ( 939 MB )

VST

We’re audio producers and sound designers with over 20 years of experience in the industry. Our team has lived through the entire evolution of digital audio production.

Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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670 MB

An intimate upright piano recorded in Dartmoor, UK.

The original piano – use the mic controls to quickly fade between 5 sets of studio microphones. Recorded with precision
use the mic controls to get the perfect blend for your mix. Studio quality – recorded at Shearwater Studios, the piano has been sampled by professional engineers.

dial in the perfect sound
use the mic controls to get the perfect blend for your mix.

basic mode
use the ‘clarity’ and ‘room’ macros to quickly dial in the right sound.

tasteful FX
use the tone-sculpting controls to spice up your piano playing.

tone
adjusts which note samples are picked, repitching the piano in real-time.

modern UI
mouse-friendly design by imagiro paired with beautiful illustrations by funilab.

velocity curve editor
change the plugin’s velocity curve to suit your own keyboard.

microtuning
play to any scale you please. supports Scala files & MTS-ESP.

Lite version includes:

piano sound set
tone control
velocity curve
microtuning support

Sample data file included. However – plugin could download it itself from the Imagiro website.
Place its contents directly into your sample data folder (if installing offline/manually)

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Imagiro.Shearwater.Piano.Lite.v1.0.8.WiN.macOS  ( 670 MB )

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We’re audio producers and sound designers with over 20 years of experience in the industry. Our team has lived through the entire evolution of digital audio production.

Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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27 MB

Violin One – The Power of Physical Modeling

Unlike the Hybrid Modeling technology used in many of our other instruments, Violin One combines physical modeling with behavior modeling. This results in a smaller footprint and excellent playability.

A standout feature of Violin One is its support for MIDI 2.0 and MPE, offering users an entirely new way to interact with the instrument through their devices. The higher resolution of MIDI 2.0 provides more precise control over the sound, along with numerous advantages when used with the latest MIDI 2.0-compatible keyboards and controllers.

Violin One is a virtual instrument with great potential, and we’re committed to continuously improving it. We greatly value user feedback—it’s the driving force behind the evolution of Violin One.

Key Feature

Physical Modeling technology with a small size (20MB)
Embodied Microphone Modeling and 3D panner Effect Unit
Support latest MIDI 2.0 and MPE
Behavior Modeling on different techniques
Provides VST3 Version （Now only Windows Version, as Mac Version now need signing and notarize, it will take more time

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ViolinOne-v0.98  ( 27 MB )

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Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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602 MB

Piano One comes from the Yamaha C7 concert grand, a true workhorse in the professional piano world, appearing on famous concert stages, in international competitions and in prestigious music events throughout the world.

By utilizing the Sound Magic Latest Neo Piano Yosemite Hybrid Modelling Engine, Piano One offers latest piano sound powered by MIDI 2.0 and modeling technology

In this new version, we introduce our first full-featured, commercial-grade piano model—offered completely free of charge and designed solely to deliver an uncompromised piano sound.

Product Features
VST on Windows (32Bit&64Bit) and VST and AU on Mac (32Bit&64Bit)
Neo Piano Hybrid Modeling Engine (Limited Features)
Yamaha C7 Sound (Vintage Upright in Piano One SE)
Note duration is limited within 18 seconds
Some features like resonance is missing

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Piano1-v7  ( 557 MB )

VST

We’re audio producers and sound designers with over 20 years of experience in the industry. Our team has lived through the entire evolution of digital audio production.

Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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107/141 MB

Darksichord 3 Lite is a Harpsichord virtual instrument plugin for DAWs and other plugin hosts on Windows and macOS.

Darksichord 3 Lite is sourced from the 3 sound layers that made up the original version, but now comes with different textures and nuances for a much darker sound and more character.

The interface is user-friendly and straightforward with ADSR amplitude envelope, LFO modulation, lowpass/highpass filter cutoff, and global tune. New effect modules were added – delay, distortion, and reverb, each of which comes with typical controls and parameters.

From the new Layers section, the level of each layer (Sub, Harpsichord & Organ) can be controlled separately, allowing for in-depth tone shaping.

Darksichord 3 Lite is aimed at all popular genres such as Pop, Hip Hop, Trap, EDM, House, but also for Cinematic production, filmmakers, and sound designers. With its dark tone, it is perfect for darker and gloomy productions.

Darksichord 3 Lite is available in VST/VST3/AU plugin formats for Windows and Mac (64 bit)

Features:

3 sound layers for in-depth sound shaping: sub-bass, harpsichord and organ
LFO modulation controls
Lowpass/highpass filter cutoff
ADSR envelope controls
Global tune
Built-in vintage reverb
Built-in distortion
Built-in delay

System Requirements on Windows:

Windows 8.1/10/11
180 MB Disk Space
200 MB Ram
VST or VST3 host (64-bit)

System Requirements on Mac OS X:

OS X 10.14 And Above
180 MB Disk Space
200 MB Ram
AU or VST host (64-bit)

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DARKSICHORD 3 LITE WIN VST3-VST 64BIT  ( 132 MB )

DARKSICHORD 3 LITE MAC VST3-VST-AU 64BIT ( 142 MB )

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Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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255 MB

GAUZY KEYS WITH ANALOG CHARM

Dusty Felts breathes new life into Jon’s original Kawai Felt Piano sample. This nostalgic standalone plug-in reimagines the warm, rich character of a felted piano with a delightful vintage lo-fi charm.

Enhanced with retro elements like wow and flutter effects and adjustable amp hiss, Dusty Felts invites you to explore the beautiful imperfections of a classic felted piano. Expertly crafted to inspire your next musical masterpiece, it offers a timeless appeal that’s sure to spark creativity.

SYSTEM REQUIREMENTS
MAC OSX 11+. Intel and Apple Silicon supported. i5 or better CPU. Minimum 8gb RAM. 64 bit.

WINDOWS 7+. 8gb RAM. 64 bit.

DEDICATED PLUG-IN. VST3, AAX, AU

Tested with Cubase, Ableton Live, Logic, Reaper, ProTools, Reason 10, FL Studio, Presonus Studio One

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Prototype Dusty Felts 1.0.2  ( 255 MB )

VST

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Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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197 MB

SynToPix Lite is a free virtual instrument with 5 multisampled presets, taken from the full version. These presets offer synthetic toy piano sounds, created by an advanced AI using real toy pianos as reference.

Features:

For Windows & Mac (64-bit)
5 Synthetic Toy Piano Presets
LFO modulation and filter controls
Adjustable ADSR envelope settings
Built-in effects: Chorus, Delay, Reverb and Distortion
Carefully edited samples
Simple and easy to use
Royalty-free

System Requirements (Windows):

Windows 8.1/10/11
70 MB Disk Space
70 MB RAM
VST/VST3 host (64-bit)
System Requirements (Mac):

macOS 10.13.6 And Above
70 MB Disk Space
70 MB RAM
AU/VST/VST3 host (64-bit)

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SYNTOPIX-v1.0.0  ( 197 MB )

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Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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292 MB / 352 MB

Atmos 3 Lite is a Free cinematic ambient piano, with 2 layers of sound with adjustable level, one layer of acoustic piano sound recorded from a Yamaha C3 and another layer of sound pads created from the same original samples, using various digital processing such as Reverbs, Morphing and Structural Effects among others.

Atmos 3 Lite is aimed at all popular genres such as Ambient, Pop, Hip Hop, Trap, EDM, House, but also for Cinematic production, filmmakers, and sound designers.

Atmos 3 Lite is available in VST/VST3/AU plugin formats for Windows and Mac (64 bit)

Features:

Windows & Mac
6 Multi-Sampled Piano Presets
2 Layers
LFO modulation controls
Lowpass/highpass filter cutoff
ADSR envelope controls
Built-in chorus
Built-in delay
Samples meticulously edited one by one
Easy to use
100% royalty free

System Requirements on Windows:
Windows 8.1/10/11
600 MB Disk Space
400 MB Ram
VST/VST3 host 64-bit

System Requirements on MacOS:
macOS 10.14 And Above
600 MB Disk Space
400 MB Ram
AU/VST/VST3 host (64-bit)

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ATMOS_3_LITE_WIN  ( 292 MB )

ATMOS_3_LITE_MAC  ( 351 MB )

VST

We’re audio producers and sound designers with over 20 years of experience in the industry. Our team has lived through the entire evolution of digital audio production.

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x64 x86 VST3 AU AAX WiN MAC | 26 MB

KingKey is a hyper realistic sounds of a keyboard while playing ON your keyboard.

International Joke Day 2024
First came the piano keyboard, then along came the computer keyboard…
Then, you could play your keyboard with your keyboard…
NOW you can play the hyper realistic sounds of a keyboard while playing ON your keyboard.
Click, Clack, Svvvvt, B-ding, cha-cuh, fshhhh.
Let´s get King Key.

International Joke Day 2024
Gone are the days when you were left begging for high quality one-shot keyboard samples, for we at Caelum have used our incredibly intelligent minds to bring you our first sampler; King Key.

Decadence
Anywhere in the world you can now play the sounds of a keyboard, on your keyboard. We also blessed you with the sounds of a MIDI keyboard, a typewriter and 4 produced kits as our generosity knows no limits.

Character
With 9 instruments and 11 presets at your finger tips you can finally be the person your parents wanted you to be, a King Key one.

Juicy Details
Using proprietary high-detailed sampling techniques, which are sadly too complex for you to understand without demonstrative play-dough, we have captured the essence and spirit of a vintage Imperial typewriter, a Modal Cobalt8X and a Generic USB keyboard.

Effects
Transform these sounds by driving them into oblivion, reducing them into bitty chunks and spreading them into a spacious sound storm of punctuational goodness,

Product Aftercare
We cannot be held liable for any personal or spiritual awakenings after getting King Key, you are the master of your own fate and you must be held entirely accountable.

System Requirements
Windows
Requires Windows 7 or higher. VST3 & AAX (AAX is 64-bit only).

macOS
Requires macOS 10.11 or higher (64-bit only). AU, VST3 & AAX. Native Apple Silicon support.

You need to register on the developer’s site to use the plugin with free license.

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Caelum_Audio_King_Key_v1.0.0  (26  MB )

VST

We’re audio producers and sound designers with over 20 years of experience in the industry. Our team has lived through the entire evolution of digital audio production.

Our mission? To filter out the junk and bring you only the studio-ready free VSTs that actually compete with paid gear. We do the digging so you can focus on creating.

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