2,252 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.
ESP32Network player
naguirre
30.1 × 66.6 mm72 parts4LMIT3
Headphone-DAC-with amp
r4ptor
88.9 × 73.7 mm70 parts2LGPL-3.03
KLON
grant-cox
94.5 × 63.5 mm69 parts2LMIT3
EuroBusboard
DIYSynthMNL
146 × 70 mm69 parts2LGPL-3.03
Polykit x controlboard
polykit
200 × 160 mm68 parts2LCC-BY-NC-4.03
XPS:Channel
yu2924
90 × 52 mm65 parts2LCC0-1.03
Glockwork orange
newtontriumphant
66 × 90 mm62 parts2LNo license3
ESP32STARLITE PRODUCTION
AndrewJ-25
154.2 × 250 mm62 parts2LNo license3
Parvus psu
nradulovic
100 × 100 mm61 parts2LGPL-3.03
PBJ EU Sub
shannon-greenlight
111.4 × 29.5 mm60 parts2LGPL-3.03
FPGAX68k combocard
sayjionix
141 × 150 mm60 parts2LMIT3
Si468x
NightLaneOrg
22 × 30 mm54 parts4LGPL-3.03
STM32AudioVisualizer
Gex-devs
129.1 × 32.5 mm42 parts2LNo license3
AraBeat : ECG Module
AravinthPanch
58 × 58 mm40 parts2LApache-2.03
NodePilot
tushroy
100 × 70 mm40 parts2LCC-BY-SA-4.03
ESP32Esp32-jukebox
JonasDoebertin
65 × 40 mm36 parts2LNo license3
Melper
160 × 60 mm36 parts2LGPL-3.03
Kicad lp filter
s59mz
230 × 130 mm34 parts2LGPL-3.03
GuitarAmplifier-PCB-IE0308
RoMadrigal
158.5 × 57 mm33 parts4LMIT3
Phonkyo
fabiomsouto
65 × 30 mm31 parts2LCC-BY-NC-4.03
Under-Pressure
catalinacatalinacatalina
74 × 44.5 mm30 parts2LMIT3
VU-Switch
tebl
99.1 × 61.6 mm29 parts2LCERN-OHL-1.23
ESP32Casa cactus speaker
pablogs9
64.5 × 22.5 mm24 parts2LNo license3
Portal Gun PiHAT Mk2
rganlath3
65 × 56 mm23 parts2LCERN-OHL-S-2.03
Overnight Sensations v2.2
stephenhouser
184.8 × 100.3 mm14 parts2LNo license3
Zx spectrum amplifier
zxinfo-diy-electronics
63.2 × 50.3 mm14 parts2LNo license3
AVR/ArduinoHigher lower
oskitone
63.5 × 38.1 mm14 parts2LCC-BY-SA-4.03
Lm386 amp
ctes091x
45.7 × 33 mm13 parts2LMIT3
Audio power amplifier power supply
flavian112
144.8 × 50.8 mm9 parts2LNo license3
FootprintTest
fachat
130.1 × 31 mm7 parts2LGPL-3.03
SCARTAudioExtractor
circuitsable
45.5 × 55.8 mm3 parts2LGPL-3.03
Expressor
finnglink
10 × 39.7 mm0 parts2LMIT3
Virus faceplate
mprosk
121 × 106 mm0 parts2LNo license3- schematic only · 794 parts
Quad bass lead drum generator
JordanAceto
794 parts2LNo license3 - schematic only · 112 parts
Eurorack-Electric-Druid-VCDO1
112 partsCC-BY-NC-4.03 - schematic only · 21 partsESP32
AwesomeStudioPedal
tgd1975
21 partsMIT3
Browse boards by part
AMS1117-3.3 1034USBLC6-2SC6 836RP2040 609W25Q128JVS 388TL072 309AP2112K-3.3 308TL074 274ESP32-S3-WROOM-1 266CH340C 242L7805 224Pico 21874HC595 213USBLC6-2P6 200LM358 19074LS04 175AP2112K-3.3TRG1 173ESP32-WROOM-32 167SRV05-4 165Arduino_Nano_v3.x 15974LS245 156LM7805_TO220 15574LS138 152W25Q128JVSIQ 15174LS32 148