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.
STM32TinySound
knurtz
15.2 × 15.8 mm23 parts4LNo license0
Modular-Power-USBC
domesticmouse
52 × 24 mm23 parts2LCERN-OHL-S-2.00
Tesseract
crkalapat
68.8 × 68.3 mm23 parts2LNo license0
ESP32SnakeBoy
Nadoooor
180 × 85 mm22 parts2LMIT0
Kicad audio board adapter
khaosdoctor
100 × 40 mm22 parts2LNo license0
Perfect pedal
dvhx
60.4 × 115.8 mm22 parts2LGPL-3.00
ESP32Walkman in-2026
AnomaliScript
92 × 59 mm22 parts2LMIT0
AVR/ArduinoKdg pingpong medal
VincentPeters
45 × 45 mm22 parts2LMIT0
Ampselector
ravinder-Olivier
85 × 100 mm22 parts2LNo license0
Guitar audio frontend filter
TomasOsP
73 × 40 mm21 parts2LCC-BY-4.00
Pura mainboard-0805-0.3
rvbcrs
50 × 50 mm21 parts2LNo license0
RP2040/RP2350Static-Speaker
Jacube1234
73.2 × 39 mm21 parts2LNo license0
RMoy
Chlorophytus
91.5 × 56.5 mm20 parts2LMIT0
NXPAudio teensy
Karpova-Lab
44.1 × 43.5 mm20 parts2LBSD-3-Clause0
ESP32Jazz
devisunofficial
38.5 × 30.2 mm20 parts2LNo license0
Skibidi usb audio dongle
tobycm
40 × 40 mm19 parts2LMIT0
RP2040/RP2350Nebulatune
z0b1
105 × 65 mm19 parts2LMIT0
Subwoofer Amplifier circuit design with pcb kg
kogeicollins
19 parts2LNo license0
ZBox
dkej123
58 × 64.5 mm19 parts2LMIT0
Preamp ic4558
IagoAbreu-Core
102.5 × 76 mm18 parts2LNo license0
ESP32Hidden Headphones Carrier Board v4
jrydin01
55 × 29.5 mm18 parts2LCC0-1.00
ESP32Samplooler mini
willbearfruits
82 × 56 mm18 parts2LGPL-3.00
Bluetooth-Transmitter
hahmed14
45.8 × 50.3 mm17 parts2LNo license0
Audioboard
Keyaan-07
17 × 33 mm17 parts2LNo license0
Mister fuzz
nickmedina5991
40.5 × 36.1 mm17 parts2LMIT0
Iris brow
HeyPCB
116 × 12 mm16 parts2LCERN-OHL-S-2.00
Quad passive switch
nickmarrone
20 × 108.5 mm16 parts2LGPL-3.00
EGB-240-Alternating-Relaxation-Oscillator
Nigel-Grommen
57.5 × 41 mm16 parts2LNo license0
0024 Speaker Module PAM8302
AirchipTeknoloji
40 × 30 mm16 parts2LNo license0
RP2040/RP2350Fm receiver
NishthaSharma-22
82.5 × 36 mm16 parts2LNo license0
ESP32Fuzzpedal
jasonli0616
75 × 75 mm16 parts2LNo license0
RP2040/RP2350Radio-Tutorial
Outdatedcandy92
80 × 35 mm16 parts2LNo license0
RP2040/RP2350Picotonewheel
edwindertien
20.4 × 51.2 mm15 parts2LNo license0
ESP32Lethe
VulcanWM
84.8 × 97.8 mm15 parts2LNo license0
ESP32GRAD9000
joelgott
40 × 60 mm15 parts2LNo license0
Akashi-04
suikan4github
69.9 × 74.9 mm15 parts2LNo license0
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