r/synthdiy is a subreddit with 67k members. The community frequently discusses diy, synth, eurorack, modular, and looking for a, and they frequently recommend/review soldering iron, circuit simulator, and microcontroller, and the most common flair used is standalone, modular, schematics, components, and video.
building, modifying and repairing synthesizers
Popular Topics in r/synthdiy
#1
Diy
111 posts
#2
Synth
94 posts
#3
Eurorack
57 posts
#4
Modular
47 posts
#5
Looking For A
40 posts
#6
Midi
39 posts
#7
Circuit
36 posts
#8
Module
32 posts
#9
Pcb
26 posts
#10
Power
22 posts
Products Discussed in r/synthdiy
Soldering Iron
39 reviews
#1
Hakko
4.6★ from 14 reviews
#2
Weller
4.2★ from 6 reviews
#3
Pinecil
4.5★ from 4 reviews
Circuit Simulator
9 reviews
#1
CircuitLab
4.0★ from 3 reviews
#2
LTspice
4.3★ from 3 reviews
#3
Falstad Circuit Simulator
3.5★ from 2 reviews
Microcontroller
8 reviews
#1
Arduino
4.0★ from 2 reviews
#2
Teensy
4.0★ from 2 reviews
#3
Daisy Seed
4.0★ from 1 review
Flair Used in r/synthdiy
#1
standalone
: "10 voices of FM at 48kHz on an ESP32-S3, plus wavetable and sample engines"
15 posts
#2
modular
: "Home made drum machine"
13 posts
#3
schematics
: "Feedback on this simple mixer design"
7 posts
#4
components
: "It's alive! PicoFaceD5 — Roland D-50 LA synthesis on an RP2350, built from the machine's own firmware"
6 posts
#5
video
: "ESP32-S3 Synth Sounding good!"
6 posts
#6
arduino
: "I've made fully open-sourced algorithmic MIDI sequencer & CC beatmasher, built on a single ESP32-C3"
4 posts
#7
course
: "[MATH][DIAGRAM] Beyond Polyphone: A multi-point zero-crossing alignment algorithm for perfect, click-free sample loops (with source code)"
3 posts
#8
workshop
: "Building a new module"
2 posts
Member Growth in r/synthdiy
Yearly
+11k members(19.5%)
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Last updated: August 29, 2026