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GOODBYE SUMMER SALE

GET FRACTION

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€111,95 €80,95

Pure Hardware sound - unmatched Control
Video

Containing over 18.000 samples, from more than $80k of hardware, fraction preserves true analog character while introducing new inspiring controls

udo audio super 8

udo audio super gemini

OP-XY

juno 60

juno 106

Arturia Polybrute

Arturia freak range

oberheim ob-6

moog grandmother

moog matriarch

prophet 6

prophet 10

prophet rev-2

yamaha-b3 piano

hologram el. pedals

Chase bliss pedals

hired orchestras

1914 william e-hill

luthier violin

movement

Fraction lets you shape sound in real time using modulations and vintage effects transforming any preset in just a few clicks.

effects

Apply some finishing touches with our high quality reverb, analog tube saturation and a beatsynced echo delay.

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blend

Blend sound layers, modulations and effects in a workflow optimized way.

noise layer

Add a dedicated Noise Layer with over 15 analog, tape, organic and nature noises.

quick character

Use the smooth, fractalize and color macros to balance space, rhythm and energy.

The Difference

presets Sound Demo

Alt image

360+ quality presets

+250 sound maps

hardware sounds

creative control

JSewell

Genuinely seems like something I will use daily, can tell you put a lot of heart into it

KXVI

Your go-to library for travis scott and drake melodies. One of my Top VSTs for 2026.

Larry Ohh

Been loving the plugin so far. Amazing quality on those Sounds. 

Allen Ritter

I love this VST!
And thank you bro.

Trifreeze

Fraction is an elite tier plugin, it really is! Sounds are top 1% tbh. Gonna review it.

Macshooter

Fraction is honestly so incredible. It's really up there with the top tier plugins.

JayCactus

Fraction is really a slept-on plugin man. Sounds crazy.

Tim Henson

Just got to playing it, off tip these bass patches are awsome!

Dirkey

You can really hear and feel the effort that went into this. It became my go-to plugin.

Iiinfinite

I did use it to make melody starters for my next Kit! Gonna make a video forsure.

Geortz

Must-have for every producer out there. Sounds are just insane. 💪

XetroBeatz

Fraction is my new go-to plugin for any sound. This is so versatile.

Andrew Huang

It is really hard to make this VST sound bad. It's one my Top 10 Plugins for this year !

1ayosim

Fraction is one of my favorites right now.
Future used the beat I made with this VST.

Factory Expansions

Start off with three factory expansions, an ever-growing collection of free expansions and hundreds of production-ready presets.

Pro Essentials

Modern reliable sounds.

Immersive

Cinematic synth classics.

Hardware Lab

Living analog patches.

Choose your bundle

All bundles contain a copy of Fraction.

Fraction

Fraction

€80,95 €111,95

This gets you started!

  • Fraction Engine
  • +350 quality presets
  • +250 multi-sampled instruments
  • Free Expansion with Major Updates
  • Create & Favorite your own custom presets
Fraction Complete
Save 44%

Fraction Complete

€136,95 €245,95

For Professionals

  • Entire Fraction Creators Collection
  • +1.150 instruments and presets
  • +750 presets across nine expansions
  • +400 multi-sampled instruments
EXPANSIONS

Ever growing Library

With each update you will get a new free expansion such as Tape-Dreams from our last update. We focus on high quality sounds, timeless themes and sounds that are truly unique to the details.

Growing Library

Premium Expansions

We're adding more and more Fraction expansions, including both free and paid options.

See All Link chevron
Monuments
MonumentsEraform, Prototype
€24,95
Core-Synth
DOWNLOAD NOW
Core-SynthEraform, Prototype
FREE
DOWNLOAD NOW
BESTSELLER
Lifeforms
LifeformsEraform, Prototype
€42,95
Chrome
ChromeEraform, Prototype
€24,95
Tape Dreams
DOWNLOAD NOW
Tape DreamsEraform, Prototype
FREE
DOWNLOAD NOW
NEW
Felt-Synth
Felt-SynthEraform, Prototype
€42,95

about

Meet The Creators

Viom @eraform

sound designer & Producer

Julian @prototype

ui Designer & VST Developer

our goal was to preserve analog hardware sound and its unique character, without making any compromises on sound quality or control
NEW ARRIVAL!

Felt-Synth Expansion

Learn More Link chevron
NEW ARRIVAL!

Felt-Synth Expansion

Learn More Link chevron

FAQ

Frequently asked questions. Remaining questions or issues: support@eraformaudio.com
Are future updates free? Plus

Yes. Fraction is a one-time payment and any future updates will be totally free for all registered users.

We continuously update Fraction everytime we can, shaped by what our community needs next!

Every major update adds free presets and sound sources to your growing Library. We also occasionally release optional paid expansions, which are included for free in Fraction Complete Edition.
Where can I watch a full overview of how Fraction works? Plus

You can check reviews & guides here:

the first video in the playlist is our official guide.
Fraction overview & reviews here.

Viom regularly posts videos on his YouTube channel showcasing Fraction in action.

+ if you search “Fraction VST” on YouTube, you’ll find plenty of reviews and videos you can watch.
What does the XY Pad in the middle do? Plus

Left and Right (X) blends between sound layer A and B while Up and Down (Y) is split into two sections: 

Up and down in the bottom half of the XY Pad, controls the dry and wet of the effects page (0 - 75%).
When you go from the bottom to the top half of the XY Pad, that is where the Filter turns on in the advanced page.

Up and down in the top half of the XY Pad, controls the strength of the LFOs being applied to the Filter.

click here to watch a 120 seconds breakdown of what Fraction can do.
Errors
My License Key is not working. Plus

Copy and paste your License Key with no extra spaces at the end.

Find your license key in the “Your Download Is Ready!” email or log into our License Hub
If you got the issue where the plugin asks you to re-enter your license, then follow these steps:

Please try to reinstall fraction after closing it to see if its solves the issue, if not try the following steps:

Try to restart your mac or clear the files located at: '/Users/YOUR NAME/Library/Application Support/Prototype Audio/Fraction'
My Expansions are not loading into Fraction. Plus

99% of the time it is about subfolders. Your "Expansions" folder needs to look like this.

1. Download and unzip the 26GB Expansions file (store it anywhere on your computer).
2. Bottom left of the Plugin → Settings → Sample Path, and select the “Expansions” folder inside the Factory Content folder.

Restart the VST.

Important: The folder your locating must be exactly named “Expansions” for them to show up in the preset browser.

The "Expansions" folder is also where any of your new Expansions are going into like Monuments or Core-Synth. But make sure there are no subfolders otherwise it won't show up.

Fraction won't show up in my DAW. Plus

Run the correct installer for your operating system and the Fraction VST file will go to these places: 

WIN: C:/Program Files/Common Files/VST3 

MAC: C:/Program Files/Common Files/Components

and then make sure your DAW scans these folders (even tho it already does that per default).

Compatibility
How much Disk-Space do I need to Install Fraction? Plus

The included Factory Expansion contains presets and sounds for Fraction and is required for further expansions.

Minimum required disk space: 52.0 GB You will receive a 26.0 GB zip.file of the Factory Content (that you can delete after zipping) + VST3 and AU installers.
What DAWs are supported and what are the system requirements? Plus

Fraction works in any DAW that supports VST3 or AU formats, including FL Studio, Ableton Live, Logic Pro, Studio One,
Reaper, GarageBand and more...

It works on macOS 10.9+ and Windows 10+

Factory Expansion Content: 24.6 zip.file
→ 51.0GB minimum disk space required during unzipping
Where are the user and installation guides? Plus

click here to visit our support page with the guides to Fraction.
Can I use my Fraction License on my laptop and studio PC? Plus

Yes! You can activate Fraction on up to 3 of your own devices per license.

If we detect unusual activity or the license being shared that aren’t recognized as your own devices, it may result in the license being restricted to a single active device.