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.
Cem3340 board mount
jhitesma
100 × 70 mm31 parts2LMIT14
VCO-3340
mort13
48.8 × 110 mm102 parts2LGPL-3.012
AddBuff
banjomasterpete
30 × 128.5 mm56 parts2LNo license12
MidiMonger controls
dchwebb
40 × 110 mm31 parts2LNo license12
Utility board
powsplatboom
399.8 × 72 mm242 parts2LNo license11
2164 phasor plug in board
JordanAceto
58.4 × 50.8 mm92 partsCC-BY-4.011
AVR/ArduinoBrain board
FrankBuss
100 × 100 mm70 parts2LNo license11
Rp24-usb tester
mikesmitty
50 × 25 mm36 parts2LCERN-OHL-P-2.011
404
Chrismettal
52 × 63 mm29 parts2LCC-BY-SA-4.011
BonkDaddy2HP
shannon-greenlight
10 × 110 mm23 parts2LGPL-3.011
Finals
kholia
61.8 × 42.9 mm19 parts2LCustom license11
STM32Midi-2-cv
lennartquerter
50 × 110 mm142 parts4LCC-BY-NC-4.010
LFO THT
BruteClaw
100 × 110 mm79 parts2LGPL-3.010
FPGADspod up5k
emeb
26.4 × 41.7 mm63 parts4LMIT10
MiniVCF v1.1 - Main
benjiaomodular
30 × 82.3 mm45 parts2LNo license10
Audio board wm8731
centrevillage
20.3 × 43.2 mm31 parts2LMIT10
AVR/ArduinoMidi laser
usr-ein
80 × 60 mm22 parts2LGPL-3.010
Logiverter
VincentPeters
40.1 × 107.1 mm74 parts2LNo license9
USB C Daughterboard with ESD Protection
0xCB-dev
42 × 13 mm13 parts2LCustom license9
Pmod microphone array 2x1
MarcinWachowiak
80 × 20.3 mm9 parts2LCC-BY-NC-4.09
MICRO-OX VCF/VCA board
60.3 × 165.1 mm132 parts2LCC-BY-4.08
Ioboard
jypma
39.4 × 108 mm65 parts2LNo license8
Main
jamdotjar
68 × 65.6 mm8 parts2LCC-BY-SA-4.08
STM32Quasar Synthesizer Card
petrinm
71 × 61.4 mm130 parts4LCERN-OHL-W-2.06
ESP32ESP-input
BasementCircuits
40 × 85 mm25 parts2LCERN-OHL-W-2.06
IlluminatedToggleSwitch 3U10HPvarAv2
MostlyCoraGrace
50.5 × 128.5 mm14 parts2LMIT6
Buttons board
mbouyer
110 × 35 mm14 parts2LBSD-2-Clause6
Pcie1x backplane
andrew-bolin
93 × 46 mm8 parts2LNo license6
Keyboard
apaleslimghost
264.2 × 80 mm120 parts2LMIT5
BMP RussianClone
cracked-machine
41.9 × 92 mm57 parts2LNo license5
ESP32Bottom
Hanz-Tech
75.3 × 71.1 mm21 parts2LNo license5
Ledrow x10
eigenlucy
45.1 × 1.9 mm20 parts2LMIT5
NXPClarinoid devboard
thenfour
257 × 174 mm112 parts2LNo license4
ESP32Audio board for ESP32 module
KomplexKapharnaum
39.8 × 44.5 mm26 parts2LMIT4
Connectorboard
plan44
327.7 × 9.9 mm5 parts2LNo license4
A2600 Faceplate Basic
tebl
61 × 99.7 mm4 parts2LCERN-OHL-1.24
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