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.
ToggleSwitch wH 1U44HP6x1Bv2
MostlyCoraGrace
223.2 × 39.7 mm25 parts2LMIT6
Pcie pi module
andrew-bolin
100 × 68.9 mm15 parts2LNo license6
Pedal alembic stratoblaster mini
dvhx
11.3 × 13.3 mm12 parts2LGPL-3.06
MIDI IN Breakout Board
TuDo-Makerspace
20.3 × 62 mm9 parts2LNo license6
RP2040/RP2350Synth Labs 065 Hotswap RGB
0xCB-dev
305.1 × 111.5 mm228 parts2LCustom license5
DSD BOARD
ERDALECE
100 × 65 mm207 parts4LGPL-3.05
Bees
apaleslimghost
181.1 × 109.6 mm150 parts2LMIT5
Analog2.0 analog sequencer
mkomakonkon
207.5 × 152.5 mm142 parts2LNo license5
Iosefka controlboard
GlobalSequence
213 × 128.5 mm74 parts2LNo license5
BMP BasicClone
cracked-machine
41.9 × 92 mm57 parts2LNo license5
BaseBoard
open-headset-interconnect-standard
74.3 × 30.5 mm35 parts2LCC-BY-4.05
MZ80AD724
Board-Folk
119 × 63.1 mm28 parts2LNo license5
Top
Hanz-Tech
75.3 × 64.8 mm26 parts2LNo license5
Hydrogen testkit
wntrblm
100 × 100 mm15 parts2LCC-BY-SA-4.05
Pedal snow white autowah daughterboard
10.3 × 24 mm5 parts2LGPL-3.05
NXPEnclosurefinal01
thenfour
59 × 69 mm117 parts2LNo license4
ESP32ESP32 battery management module
KomplexKapharnaum
56.5 × 57.5 mm98 parts4LMIT4
Amplifier.kicad pcb-CNC version (with some problems)
MarinosK
99.1 × 99.1 mm67 parts2LNo license4
AVR/ArduinoProject Hanip
AhmadHaniF1145
102.1 × 53.9 mm25 parts2LNo license4
Touchboard
plan44
144.3 × 22.4 mm22 parts2LNo license4
ESP32BluetoothPedal Server
skngh
77 × 41.7 mm20 parts2LMIT4
Asynthosc panel
everedero
71.1 × 128.4 mm13 parts2LGPL-3.04
555-blinker
serenebliss0
51.1 × 12.3 mm7 parts2LMIT4
A2600 Faceplate
tebl
61 × 99.7 mm4 parts2LCERN-OHL-1.24
FilterMotherboard
mit-ll
152.4 × 203.2 mm309 parts4LCustom license3
WEASEL KiCad MainBoard
joebmz98
335 × 200 mm216 parts2LMIT3
STM32Symmetric power supply
Synthron
160 × 100 mm197 parts4LNo license3
FPGAAmplifierHat
RasmusStagsted
150 × 75 mm179 parts4LNo license3
MSM Stereo VCF compressor and distortion board
JordanAceto
52.1 × 185.4 mm113 parts2LNo license3
RP2040/RP2350V4d3 pico
tomcombriat
54.2 × 94.2 mm99 parts2LTAPR-OHL-1.03
Fm radio panel
411568
320 × 83.8 mm98 parts2LMIT3
ESP32Digisax
AndrewJ-25
103 × 250 mm61 parts2LNo license3
ESP32Espcnc
m24h
90 × 45 mm60 parts2LNo license3
Parvus Power Amplifier
nradulovic
70 × 66 mm43 parts2LGPL-3.03
XPS:PS-DC
yu2924
50 × 97 mm41 parts2LCC0-1.03
Ksoloti power midi board
ksoloti
72 × 32 mm38 parts2LNo license3
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