1U & 3U Eurorack Modules
Cwejman, Doepfer, Erica, MakeNoise, Mutable instruments, TipTop Audio, Analogue Solutions, and much more! The world’s most popular format.
Be sure to look into MANUFACTURER SUB-FORA as well..

4U Format Modules + EMS
Buchla, Serge, Studio.h, Northern Light Modular, Keen Assoc., 1979, Vedic Scapes, etc. Banana systems
Be sure to look into MANUFACTURER SUB-FORA as well..

5U Format Modules
Moog, Synthesizers.com, MOTM, Modcan, Moon and others..... Go big!
Be sure to look into MANUFACTURER SUB-FORA as well..

Fractional Rack Modules
Blacet, Metalbox, Synthasonic, PAiA and the rest.... a frac frenzy!

Modular Synth General Discussion
Anything modular synth related that is not format specific.

Play Out! Performance Modulars
Live patching, designs, and techniques that push the performance envelope.

Synthesis Techniques
Post your patches here! Put the format(s) in the subject.

General Gear
Any music gear discussions that don't fit into one of the other forums.

Guitars, Basses, Amps & FX
A place for the string slingers, pedal freaks and amp snobs in our midst.

Music Software
Plugins, DAWs, iOS/Android, software modular, etc. A place for all things soft...

Music Tech DIY
From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive!

Video Synthesis
Discussion of modular and standalone video generating/processing techniques and associated hardware.

Artist Discussion
Discuss the music that you love to hear.

Production Techniques
Discuss everything related to production, recording, composition, etc.

Synth Noise
Discussing gear, production, and ideas for making noise music. Enough JMJ, let's rock like Merzbow!

Your Tunes Here
A place to post links to your music, upload tracks and promote yourself.

Your Social Media Channels Here
A place to promote your Youtube Channel, Instagram, or other Modular Synth Social Media.

Synth Drone
Mostly Modular Flying

Sound Art
Dedicated to the discussion of Sound Installations, Environments, and Creations.

ADDAC System
New Interfaces for Analog Synthesizers.

Aether Machine
Earthside communication channel for 6U format devices

Alyseum
Discussion and support for Alyseum products.

Amazing Machines
Support and discussion for Amazing Machines products.

AMSynths
Discussion and support for the AMSynths range of analog synthesizer modules.

Animal Factory Amplification
Beastly pedals and Eurorack modules, built with love and pride in Bombay, India.

AniModule
Grow Some Hair On Your Chest.

Antumbra
Support and discussion for Antumbra modules and DIY builds

Audiospektri
Discussion and support for the HG-16 and HG-30 multifunction modular synthesizers

BugBrand Devices
Modular and other sound devices from BugBrand.

Ciat-Lonbarde
home of post-70s electronics

Circuit Abbey
Confess your sins here. Prayers optional.

DAEDSound
DAEDSound - Disagreeable Auditory Experience Designs. Need we say more? Yes, come on in!

Dwarfcraft Devices
Effects pedals, Euro modules, and education.

ELBY Designs

Epinasty
Etched Metal, Circuit-Bending & Designs of Luigi LaValle

Expert Sleepers
Discussion and support for Expert Sleepers' Silent Way software and hardware.

Extralife Instruments
Creator of of the Super Sixteen Sequencer and based in San Francisco. This is a DIY and Finished Good product for Eurorack.

Flight of Harmony
Gear, Suggestions and Discussion.

Folktek
Dedicated forum for Folktek: Custom Electronic Instruments

fonitronik
News & Discussion

Fred's Lab
The island of hybrid & multitimbral machines

Future Sound Systems
Discussion & support for FSS products.

Hexinverter Electronique
Discussion for Hexinverter eurorack modules - email Hex if you need anything urgent!

I Dream Of Wires
Discussions and information relating to the upcoming Modular Synthesizer Documentary.

Keen Association

KOMA Elektronik
Discussion and support for KOMA Elektronik effects pedals, eurorack gear and all the other stuff we do...

Konstant Lab
Eurorack and so much more from Slovakia.

Macro Machines
Digital Control For You Analog Soul

Magpie Modular
A Portland based collective focused on creating high quality artistic & functional panels for modular synths.

Mattson Mini Modular
Dedicated forum for the MMM synth modules, both production and DIY units.

Metasonix
A place to discuss the brutal yellow evil we all love so much.

Michigan Synth Works
Discussion and support for Michigan Synth Works Products

Mobula Mobular

Muse Electronic Instruments
Keyboard-less synth designs

Music From Outer Space
Discussion & Documentation for Ray Wilson's synths, modules and noise boxes.

Northern Light Modular
Information and support for all things Northern Light Modular. Announcements, new modules, firmware updates, and workshops.

nw2s
Discussion, support, and resources for our noise making modules and kits.

Oakley Sound Systems
Discussion and support for users and builders of Oakley Sound musical products.

OMG Instruments
Home of the BlueARP DM, an 8-track hardware arpeggiator

OXI Instruments
OXI ONE performative sequencer brought to you by
two partners: Manuel -engineer & project manager and Ales -marketing & administration.

PAratek
PARATEK - aesthetics of the Soviet cyberpunk!

RackPlanner
Downloads, information and resources for the RackPlanner software.

Ross Lamond Designs
Working with wood.

SNAZZY FX
Discussion and Support for our Atmospheric Modification Devices.

soundmachines
Support and discussion for soundmachines products.

Soundtronics (M²Synth)
Discussion and support for the M²Synth modular, MFOS and
YuSynth products from Soundtronics

STG Soundlabs
Discussion and support for STG Soundlabs modules of all formats.

Studio.h Software
Doug Clauder's Studio.h software has been providing advanced Buchla-centric solutions for musicians and explorers for years. From solving lock-up problems on the i2c busses to fully e-compatible modules, Studio.h likely has something for you.

Synthesizers.com
Discussion and support for Synthesizers.com products

Synthetic Sound Labs
Discussion and support for Synthetic Sound Labs modules and devices.

Tenori-On
Yamaha shut down all support - let this instrument live on here!

The Harvestman
Digital Audio Electronics - discussion & support.

TouellSkouarn
Re ziwezhat eo da harz, Pa vez aet ar beg e-barzh

Totalmusik
Harness the Future of Yesterday Today!

Trouby Modular
Controllers for Moog format systems - official discussion & support.

Tubbutec
Support and discussion of Tubbutec products.

Volta
Discussion and support for MOTU's Volta software.

Wiard
Discussion and support for Wiard Products

Zerosum Inertia
Handmade synthesizer artifacts.