2,492 open source boards in Audio
Amplifiers, DACs, synthesizers, Eurorack modules, MIDI and guitar pedals. Every board here is a public GitHub project with its KiCad files, read for size, layers and parts. Pick one close to your design and simulate its firmware on HardLabs before you build it.
Controls
Pl0p
55.6 × 105.5 mm13 parts2LNo license33
Vco mk1 old
Windfisch
160 × 100 mm71 parts2LGPL-3.031
AVR/ArduinoThe Count
rabidaudio
15.2 × 128.5 mm50 parts2LMIT31
Button board
cester-ino
131 × 55 mm13 parts2LGPL-3.031
CVMod8 Main
Thorinair
100.8 × 108.6 mm125 parts2LCC-BY-SA-4.025
Vm124-masterpanel
mirdej
59 × 154 mm93 parts2LNo license23
IPod ESP32 barebones
martinroger
59.7 × 64.8 mm14 parts2LMIT22
NXPBoards
hallmar
40.1 × 109.7 mm91 parts2LNo license21
ESP32ESP32MIDI2CV v2
collaborative-music-lab
72 × 36 mm33 parts2LNo license19
VCO
telec16
50 × 200 mm87 parts2LNo license16
Footswitch
motekulo
34 × 58 mm6 parts2LNo license15
AVR/ArduinoSynmidi
Bad-Dog-Designs
40 × 218 mm91 parts2LGPL-2.014
Sftii
bubbajfett
55.1 × 51.6 mm53 parts2LCC0-1.014
Yusynth adsr
zero-emission
45 × 100 mm51 parts2LNo license14
Cem3340 one
jhitesma
100 × 70 mm28 parts2LMIT14
ESP32Piezo amplifier
BeeHive-org
188.6 × 95.9 mm39 parts2LMIT13
Wave Folder
mort13
35.6 × 110 mm80 parts2LGPL-3.012
MK S&H
banjomasterpete
40 × 110 mm48 parts2LNo license12
QMidiMonger controls
dchwebb
40 × 102.5 mm22 parts2LNo license12
AVR/ArduinoSSI2130 Oscillator
powsplatboom
84 × 100 mm185 parts4LNo license11
Optical phasor plug in board
JordanAceto
58.4 × 50.8 mm89 parts2LCC-BY-4.011
UpperRaw
Chrismettal
52 × 63 mm24 parts2LCC-BY-SA-4.011
Bonk Daddy
shannon-greenlight
70.8 × 24 mm23 parts2LGPL-3.011
E24-receiver board
mikesmitty
24 × 8.6 mm21 parts2LCERN-OHL-P-2.011
Finals-RD15
kholia
76 × 60 mm18 parts2LCustom license11
Euro mate
lennartquerter
200 × 100 mm98 parts2LCC-BY-NC-4.010
STM32Dspod h7r3
emeb
26.4 × 41.7 mm58 parts4LMIT10
ADSR Envelope
BruteClaw
80 × 110 mm55 parts2LGPL-3.010
MiniVCF v1.0 - Control
benjiaomodular
30 × 102.5 mm28 parts2LNo license10
RISC-VOneButton
usr-ein
20 × 20 mm13 parts2LGPL-3.010
Simplemixsmall
VincentPeters
42.6 × 80 mm59 parts2LNo license9
TuringBack
jypma
107 × 49.5 mm45 parts4LNo license8
MICRO-OX Modulation Board
203.2 × 76.2 mm44 parts2LCC-BY-4.08
STM32Unified
ervanalb
48.3 × 20.3 mm39 parts4LNo license8
Buttons
jamdotjar
62.8 × 14.5 mm3 parts2LCC-BY-SA-4.08
Audio module
KOEGlike
25.5 × 32 mm23 parts2LGPL-3.06
Browse boards by part
AMS1117-3.3 1196USBLC6-2SC6 983RP2040 699W25Q128JVS 421AP2112K-3.3 376TL072 339TL074 307ESP32-S3-WROOM-1 304CH340C 274L7805 271Pico 25174HC595 248USBLC6-2P6 248LM358 228AP2112K-3.3TRG1 205Arduino_Nano_v3.x 19774LS04 193LM7805_TO220 185ESP32-WROOM-32 18274LS245 171SRV05-4 169W25Q128JVSIQ 16974LS138 16274LS32 161