2,492 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.
4bp ZIFF MD9
RIP-Felix
38.8 × 60.7 mm123 parts2LCERN-OHL-S-2.047
Mcu board
FutureSharks
50.5 × 49 mm16 parts2LGPL-3.045
FP SW rev 21
curtisseizert
83 × 19 mm7 parts2LMIT35
Herford
niektb
40 × 110 mm109 parts2LCC-BY-SA-4.034
ESP8266Front prototype
libresmartphone
40 × 100 mm69 parts2LNo license33
PSUCompanion
coriolisinstruments
38.5 × 81 mm19 parts2LNo license33
Utils
rabidaudio
31 × 69.8 mm22 parts2LMIT31
Pot board
cester-ino
131.5 × 55 mm13 parts2LGPL-3.031
MiniDJ Main
Thorinair
29.5 × 108.6 mm89 parts2LCC-BY-SA-4.025
Vm120-output
mirdej
25 × 94 mm75 parts2LNo license23
ESP32Mbira
collaborative-music-lab
108 × 50 mm33 parts2LNo license19
MiSTeryShield20kRPiPicoUSB
MiSTle-Dev
100 × 57 mm73 parts2LNo license17
PLL
telec16
50 × 200 mm78 parts2LNo license16
RP2040/RP2350HDD Synth prototype MK2
MaverickUK
136.2 × 86.6 mm17 parts2LCC-BY-NC-4.015
AVR/ArduinoSynmidi Main
Bad-Dog-Designs
40 × 218 mm79 parts2LGPL-2.014
Tweed57
bubbajfett
54.9 × 58.7 mm53 parts2LCC0-1.014
FC more vcas
zero-emission
41.4 × 100 mm44 parts2LNo license14
VCA Panner
mort13
43 × 110 mm79 parts2LGPL-3.012
TFE peak detector
banjomasterpete
20 × 128.5 mm45 parts2LNo license12
Stereo Mixer
powsplatboom
120 × 100 mm121 parts2LNo license11
ARP 4072 LPF plug in board
JordanAceto
58.4 × 50.8 mm80 parts2LCC-BY-4.011
Lower
Chrismettal
52 × 40 mm18 parts2LCC-BY-SA-4.011
Driver
kholia
54.3 × 46 mm13 parts2LCustom license11
AVR/ArduinoSaomr
davedarko
40 × 39.8 mm13 parts2LNo license11
BonkDaddy2HP Panel
shannon-greenlight
10 × 128.5 mm7 parts2LGPL-3.011
RP2040/RP2350Dspod rp2350
emeb
26.4 × 41.7 mm56 parts4LMIT10
ADSR Envelope THT
BruteClaw
80 × 110 mm55 parts2LGPL-3.010
Noise board
lennartquerter
35 × 25 mm42 parts2LCC-BY-NC-4.010
MiniVCF v1.1 - Control
benjiaomodular
30 × 102.5 mm28 parts2LNo license10
Loop btn
usr-ein
109 × 34.1 mm12 parts2LGPL-3.010
Mix
VincentPeters
47 × 79.8 mm56 parts2LNo license9
STM32Unified old
ervanalb
48.3 × 20.3 mm36 parts4LNo license8
Micro-Ox front panel
330.2 × 177.8 mm10 parts2LCC-BY-4.08
Power board
jypma
87.5 × 37.1 mm7 parts2LNo license8
Poncho Procesador de Audio
brengi
85.9 × 137 mm83 parts2LNo license7
Pssst audio out
mostlydiyrf
59.1 × 19.7 mm19 parts2LCC-BY-NC-4.06
Browse boards by part
AMS1117-3.3 1196USBLC6-2SC6 983RP2040 699W25Q128JVS 421AP2112K-3.3 376TL072 339TL074 307ESP32-S3-WROOM-1 304CH340C 274L7805 271Pico 25174HC595 248USBLC6-2P6 248LM358 228AP2112K-3.3TRG1 205Arduino_Nano_v3.x 19774LS04 193LM7805_TO220 185ESP32-WROOM-32 18274LS245 171SRV05-4 169W25Q128JVSIQ 16974LS138 16274LS32 161