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.
FilterMotherboard unpaired
mit-ll
127 × 177.8 mm309 parts4LCustom license3
ESP32Mainboard 767
Synthron
160 × 100 mm195 parts4LNo license3
RP2040/RP2350V4 pico
tomcombriat
54.2 × 95.2 mm96 parts2LTAPR-OHL-1.03
STM32MSS Stereo LPF PS and LFO board
JordanAceto
170.2 × 76.2 mm79 parts2LNo license3
WEASEL KiCad buttonMatrix
joebmz98
125.5 × 75 mm41 parts2LMIT3
XPS:Channel:XPower
yu2924
40.6 × 20.3 mm30 parts2LCC0-1.03
AVR/ArduinoFM radio atmega 8
411568
77.5 × 52.1 mm19 parts2LMIT3
Eurobusboard idc 8
DIYSynthMNL
196 × 26 mm18 parts2LGPL-3.03
3117 breakout
r4hulrr
22 × 20 mm14 parts2LMIT3
Ksoloti audio jack board
ksoloti
100 × 34 mm13 parts2LNo license3
Sidecar
shannon-greenlight
20 × 128.4 mm8 parts2LGPL-3.03
Ecg cassette
AravinthPanch
80.4 × 50 mm7 parts2LApache-2.03
Shim amplifier, power board
stockmann-lab
290 × 110 mm256 parts2LNo license2
STM32Magna
Jaxc
119 × 139 mm178 parts4LGPL-3.02
Kicad LFO 1
promesoft
100 × 100 mm137 parts2LMIT2
STM32Main board
swiszczoo
100 × 74 mm125 parts4LNo license2
Backup1
vk2gpu
102.9 × 92.7 mm101 parts2LNo license2
AVR/ArduinoDigital
160 × 100 mm99 parts2LNo license2
STM32Dual MS20 VCF
99.1 × 99.1 mm91 parts2LCC-BY-4.02
DMH Output PCB Main
DeMarco
49 × 175 mm91 parts2LCC0-1.02
RP2040/RP2350RPI-PVSA VGA, SD Card & Audio Demo Board for Pico
GearBoxFox
85 × 56 mm67 parts4LNo license2
Delay (Old)
PancakeLegend
50 × 100 mm65 parts2LGPL-3.02
OTTO-power
cester-ino
72.5 × 23.5 mm43 parts2LGPL-3.02
Lpf ak4497 dual
ljufa
70 × 33 mm28 parts2LMIT2
TI MSP430/CCRaspberry PI power switch
terjeio
40 × 40 mm21 parts2LNo license2
AVR/ArduinoPluralsight Drumkit RevB Interface
jzkmath
71.6 × 53.3 mm13 parts2LGPL-3.02
3320 VCF control board
30.5 × 112.3 mm9 parts2LNo license2
Emiuet topRight
emnyeca
38.5 × 102.4 mm7 parts2LNo license2
NXPPiano MIDI Driver
bmgxyz
75 × 21 mm4 parts2LNo license2
Dogrudan sdr D
kocer
275 × 185 mm243 parts2LNo license1
Amplifier2
msayad97
252 × 118 mm192 parts4LNo license1
Balanced Analog Output Board for SmallDSP
Gemuesesaft
110 × 70 mm173 parts4LGPL-3.01
STM32Josh Ox Ribbon Synth Ribbon board
193 × 69.9 mm151 parts4LCC-BY-4.01
Laundry
velvia-fifty
100 × 100 mm145 parts2LCC-BY-NC-4.01
RP2040/RP2350Defcon sstv badge clean
livitup
185.7 × 199 mm135 parts4LMIT1
A2 - Amplifier Board
DumberThanUsual
200 × 25 mm125 parts2LNo license1
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