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.
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
ESP32Esp32s3-devkit-5v
eshelton328
64 × 56 mm112 parts4LNo license0
ESP32Esp32s3-devkit-5v
64 × 56 mm112 parts4LNo license0
ESP32Dev board r2
family-mruby
90 × 70 mm109 parts4LCERN-OHL-S-2.00
STM32Front panel controller
birdybro
150 × 90 mm103 parts6LGPL-3.00
Working checkpoint 12hp
blthree
81.3 × 99.1 mm103 parts2LNo license0
RP2040/RP2350Dimmer
edwindertien
105.4 × 76.5 mm94 parts2LNo license0
LFOs
Desval27
160 × 100 mm94 parts2LMIT0
NXPMusicBrain SPI-busboard v2
MarkWestbroek
200 × 115 mm88 parts2LMIT0
STM32Mixed signal Board Rev B
Akhilesh-design-02
47.1 × 45.4 mm88 parts4LNo license0
AVR/Arduino8bitdvco
eblade
100 × 100 mm87 parts2LNo license0
Nordic nRFMSBE V3 BGA
Monty103
55.9 × 8.7 mm85 parts4LNo license0
RP2040/RP2350C23-usbboot staged
dcuccia
44.5 × 48.4 mm84 parts4LMIT0
RP2040/RP2350Ghost fader narrow
chris-albert
207 × 38 mm82 parts2LNo license0
ESP32Pcm5102a mux board
cbaurtx
100 × 50 mm80 parts4LCERN-OHL-W-2.00
Bluetooth Audio board
Amaza-Ronald
65.6 × 59.9 mm76 parts2LNo license0
8x8-multiplexer
henrique-smr
201.5 × 99.6 mm74 parts2LNo license0
ToneCTRL
dmsd-lab
45 × 45 mm72 parts2LCERN-OHL-S-2.00
Actice-Tone
barrybridges68
66 × 90.2 mm70 parts2LGPL-3.00
RP2040/RP2350Segno console board
tomassasovsky
99.5 × 99.5 mm61 parts2LGPL-3.00
Classd
186.5 × 104 mm61 parts2LNo license0
Front board
JamesB-Wood
42.8 × 103.8 mm61 parts2LCERN-OHL-S-2.00
PICTrigger seq
elmegil
74.5 × 104.6 mm60 parts2LMIT0
STM32-Based Speaker Protection Controller
stamatis-mavitzis
121 × 182.3 mm59 parts2LNo license0
DJ-Mixer
8-Lambda-8
100 × 40 mm58 parts2LGPL-3.00
Audio Output
carl-becker
80 × 57.5 mm57 parts2LNo license0
Microchip SAMTempo
rrainey
58.4 × 54 mm55 parts2LGPL-3.00
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