2,432 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.
Power v2
kholia
82.4 × 49.7 mm24 parts2LCustom license11
I.MX6 Demo Board
ts-manuel
80 × 70 mm455 parts6LGPL-3.010
Compressor
lennartquerter
60 × 110 mm174 parts4LCC-BY-NC-4.010
Dspod module
emeb
68.6 × 101.6 mm92 parts2LMIT10
RP2040/RP2350Audio player
Vaaarad07
74 × 63.1 mm84 parts2LMIT10
LFO
BruteClaw
100 × 110 mm79 parts2LGPL-3.010
RP2040/RP2350XT Sound PI2040Zero bottom
xrip
100 × 69.9 mm78 parts2LNo license10
RP2040/RP2350Testy parts
mmalex
39.6 × 62.5 mm56 parts2LMIT10
MiniVCF v1.0 - Main
benjiaomodular
30 × 82.3 mm45 parts2LNo license10
Amplifier
RobertGawron
79.8 × 55 mm36 parts2LGPL-3.010
Play cue btn
usr-ein
77.8 × 39.4 mm26 parts2LGPL-3.010
Rfm adapter pi
fixxl
65 × 56.1 mm25 partsNo license10
Squeeki kleen Audio FC-rounded
Gumball2415
50.8 × 17.8 mm14 parts2LTAPR-OHL-1.010
27C160 Adapter
cristianoag
82.4 × 43.1 mm10 partsNo license10
U passive mlt
ijnekenamay
44.8 × 39.3 mm3 parts2LNo license10
AVR/ArduinoSynth Labs 060 Soldered
0xCB-dev
285 × 95 mm128 parts2LCustom license9
Vca
VincentPeters
45.2 × 146.8 mm79 parts2LNo license9
NXPLowstepper hardware
rafkhan
39.4 × 89.7 mm73 parts4LNo license9
Minima psu
nradulovic
78 × 90 mm26 parts2LNo license9
Power supply
prydin
106.9 × 48 mm16 parts2LNo license9
Pmod microphone array 4x1
MarcinWachowiak
200 × 20.3 mm15 parts2LCC-BY-NC-4.09
Cheep3a panel
30.5 × 128.5 mm13 parts2LMIT9
Mu100-dit connector board
nikitalita
14.7 × 39.6 mm4 parts2LMIT9
STM32MICRO-OX Modulation Board
JordanAceto
111.8 × 165.1 mm231 parts4LCC-BY-4.08
TuringFront
jypma
107 × 49.5 mm73 parts4LNo license8
SolarPunkSynth
dusjagr
61 × 34.4 mm21 parts2LCERN-OHL-P-2.08
ESP32ULTRATERM
jamdotjar
68 × 65.6 mm11 parts2LCC-BY-SA-4.08
RP2040/RP2350Irl raver
hackclub
98 × 98 mm292 parts2LNo license7
Drone o tron 1 0Rev1 rounded edges
koNrand
161.8 × 100 mm99 parts2LNo license7
Current dr psu
werediver
100 × 155 mm79 parts2LNo license7
OSSW - Open Scart SWitch - LCD
BinaryS010
74.9 × 26.9 mm17 parts2LGPL-3.07
ESP32Jlcpcb 1x1
t-dsp
134 × 114 mm105 parts8LCC-BY-NC-4.06
ESP32Jlcpcb 1x1
134 × 114 mm105 parts8LCC-BY-NC-4.06
FreeDSP-G POT-SWITCH BOARD
freeDSP
171 × 80 mm99 parts2LCC0-1.06
Led bar
BasementCircuits
60 × 285 mm62 parts2LCERN-OHL-W-2.06
PICEdisplay
mbouyer
78 × 110 mm34 parts2LBSD-2-Clause6
Browse boards by part
AMS1117-3.3 1069USBLC6-2SC6 866RP2040 632W25Q128JVS 394TL072 319AP2112K-3.3 313TL074 281ESP32-S3-WROOM-1 268CH340C 249L7805 229Pico 22174HC595 218USBLC6-2P6 206LM358 20074LS04 180AP2112K-3.3TRG1 179ESP32-WROOM-32 169LM7805_TO220 167SRV05-4 165Arduino_Nano_v3.x 16474LS245 160W25Q128JVSIQ 15774LS138 15574LS32 152