2,240 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.
ESP32TI99 22
danwerner21
244 × 244 mm257 parts4LNo license4
STM32Asynth2Osc
everedero
83 × 106 mm204 parts4LGPL-3.04
STM32Faderbay
vonmartins
360 × 140 mm174 parts4LNo license4
RISC-VKepler x
kunichiko
144 × 150 mm153 parts4LMIT4
AVR/ArduinoEinsteinCE
Board-Folk
170 × 170.1 mm153 parts2LNo license4
RISC-VDemiurge
AwesomeAudioApparatus
40.1 × 109.9 mm151 parts2LApache-2.04
Bmmx
Bemeier
40 × 110 mm145 parts4LNo license4
ESP32WifiWallSwitch
Uspizig
65.4 × 68 mm141 parts2LGPL-3.04
Oric
206.2 × 138.1 mm127 parts2LNo license4
ESP8266Trhmsx
wagnertavares
150.4 × 120.4 mm120 parts4LNo license4
NXPEnclosurefinal00
thenfour
59 × 69 mm117 parts2LNo license4
Chisel nes
shino-hinaduki
100 × 100 mm108 parts2LGPL-3.04
Tesla-Coil-MIDI-Synth
ucsbieee
132.1 × 61 mm94 parts4LNo license4
AVR/ArduinoTouchless xm
eldstal
57.5 × 61 mm71 parts2LNo license4
Eurorack Dexy Module
Len42
50.5 × 108.2 mm70 parts2LNo license4
Amplifier
MarinosK
99.1 × 99.1 mm69 parts2LNo license4
Guitarpedal
rumlenordstroem
60 × 90 mm64 parts4LNo license4
Microchip SAMCircuitPythonBadge
neubauek
90 × 90 mm62 parts2LNo license4
4201 multiples
butchwarns
20 × 128.5 mm53 parts2LNo license4
OwnPod
lori28167
65 × 56.5 mm39 parts2LGPL-2.04
Dist amp
thinkfat
63.5 × 100 mm37 parts4LNo license4
ESP32BluetoothPedal Main
skngh
52 × 59 mm36 parts2LMIT4
Controlboard
plan44
61.5 × 46.5 mm33 parts2LNo license4
Amiga RGB video splitter
jbilander
60.5 × 60 mm28 parts2LCC-BY-SA-4.04
Ts9 clone
ioankatsi
100 × 80 mm28 parts2LNo license4
HB9TRU-Transistor-Audion
USKA-FOS
90 × 50 mm27 parts2LCC0-1.04
Piezo-9v
Supermagnum
70 × 54.5 mm26 parts2LCC0-1.04
AVR/ArduinoProgress 4 Final
AhmadHaniF1145
102.1 × 53.8 mm25 parts2LNo license4
Amplifier RD15HVF1
SatcomRadio
100 × 50 mm23 parts2LMIT4
218r Retrigger Mod
triglav-modular
52.6 × 39.9 mm23 parts2LUnlicense4
ESP32The-SaxplayerTM
tenorangesax
116.8 × 53.9 mm19 parts2LNo license4
A2600 Keyboard
tebl
61 × 99.7 mm19 parts2LCERN-OHL-1.24
Teensy toslink receiver
kylemanna
24.9 × 18.3 mm16 parts2LNo license4
AVR/ArduinoLearning
serenebliss0
171 × 90.5 mm14 parts4LMIT4
Gameport to midi
mlaux
47 × 61 mm11 parts2LGPL-3.04
Waveblaster to midi module adapter
nikitalita
33 × 94.5 mm6 parts2LApache-2.04
Browse boards by part
AMS1117-3.3 1014USBLC6-2SC6 819RP2040 607W25Q128JVS 382TL072 308AP2112K-3.3 300TL074 274ESP32-S3-WROOM-1 258CH340C 241L7805 223Pico 21874HC595 210USBLC6-2P6 199LM358 18674LS04 173AP2112K-3.3TRG1 172ESP32-WROOM-32 165SRV05-4 163Arduino_Nano_v3.x 15674LS245 155LM7805_TO220 15274LS138 151W25Q128JVSIQ 15074LS32 146