2,480 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.
RP2040/RP2350Retrosc pong yd
lrrosa
80 × 66 mm20 parts2LGPL-3.01
DuDad
shannon-greenlight
60.6 × 24 mm20 parts2LNo license1
Tt audio pmod
joaln27
45.7 × 20.3 mm18 parts2LApache-2.01
ESP32Speakeasy panel
W-Floyd
84 × 106 mm17 parts2LNo license1
Brain
tkleisas
100 × 80 mm17 parts2LMIT1
Panel
70.8 × 128.4 mm16 parts2LGPL-3.01
Amp.Cell
barajasalfredo13
32.2 × 16.5 mm15 parts4LNo license1
AVR/ArduinoReceiver
damianmoore
30.5 × 68.6 mm14 parts2LNo license1
Parlav1
piruetasxyz
40 × 40 mm14 parts2LMIT1
Display module
pulseopen
38.5 × 20 mm13 parts4LGPL-3.01
MQ Breakout
CaptainOrangeSparrow
22 × 38 mm12 parts2LNo license1
Ribbon Controller Front Panel
JordanAceto
457.2 × 76.2 mm10 parts2LCC-BY-4.01
Gameport midi adapter
consp
85.6 × 51.6 mm9 parts2LNo license1
GateDr displayboard
PajamaLlamaLand
44 × 33 mm9 parts2LNo license1
Rgb sensor
Plajta
25.4 × 6.1 mm8 parts2LCustom license1
OpenDual-Relay-Demo
nuerolynx
20 × 30 mm8 parts2LNo license1
Wf26
gunnarbeutner
64 × 59 mm7 parts2LMIT1
PotBoard
j-mcavoy
32.7 × 35.3 mm6 parts2LGPL-3.01
Adapter
ericlewis
57.5 × 112.3 mm6 parts2LGPL-3.01
Adapter
bmo00
57.5 × 112.3 mm6 parts2LGPL-3.01
Power unit
ideocentric
88.9 × 30.5 mm5 parts2LMIT1
Analog Amplifier Module Board
CarlosCraveiro
23 × 16 mm4 parts2LCERN-OHL-S-2.01
SH101 IO
minisystem
33 × 36 mm3 parts2LNo license1
ESP32RX8-7
bradport02
165.3 × 123.7 mm401 parts4LNo license0
STM32LowerBoard1v2
hsetlik
310 × 110 mm284 parts4LNo license0
NXPQuad Preamp and 4-Channel Ambisonic Recorder
jdg511
138 × 114 mm242 parts4LNo license0
Multi channel cremat amplifier
Brunner-neutrino-lab
225 × 235 mm216 parts4LNo license0
Core evb - Copy
itead
140 × 90 mm181 parts2LNo license0
FPGACourant.before colored actual models 20260918T190457
KrasForge
160 × 100 mm180 parts6LMIT0
Raspberry PiVinyl adc rev e
MadsRudolph
118 × 88 mm177 parts4LNo license0
Nref ports one
cetola
88 × 35.9 mm146 parts4LNo license0
XassetteAsterisk
Ivansquark
56 × 56 mm137 parts2LNo license0
STM32Keyboard stm32 with copper pour
Jonkaphi
168.3 × 122.5 mm133 parts4LMIT0
USB DAC & Headphone Amplifier
jonaheinke
88 × 99 mm131 parts4LMIT0
NXP1uO c v 2.2
rhinocerose
149 × 28.7 mm122 parts2LNo license0
11 fm drum
bmurauer
80 × 100 mm113 parts2LNo license0
Browse boards by part
AMS1117-3.3 1176USBLC6-2SC6 971RP2040 698W25Q128JVS 419AP2112K-3.3 372TL072 338TL074 307ESP32-S3-WROOM-1 300CH340C 273L7805 264Pico 25074HC595 248USBLC6-2P6 235LM358 223AP2112K-3.3TRG1 202Arduino_Nano_v3.x 19474LS04 193LM7805_TO220 182ESP32-WROOM-32 18174LS245 171SRV05-4 169W25Q128JVSIQ 16974LS138 16274LS32 161