975 open source PCB designs, indexed by the chip they’re built around
Real boards from 328 public GitHub repositories, read straight from their KiCad files: size, layers, the full parts list and a render of the PCB. Find one close to what you’re building, then simulate its firmware on HardLabs before you order anything.
ESP32
Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0kESP32
Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4kRP2040/RP2350
Hackbat
controlpaths
100 × 42 mm78 parts4LCC0-1.01.0kESP32
Silkscreen
iandchasse
60 × 111.3 mm171 parts2LCERN-OHL-S-2.0554TI MSP430/CC
Pluto
carrotIndustries
24.4 × 24.4 mm36 parts2LGPL-3.0533STM32
EEZ DIB MCU r1B2
eez-open
139 × 70 mm191 partsTAPR-OHL-1.0391RP2040/RP2350
Fanpico
tjko
135 × 81.5 mm208 parts2LGPL-3.0238STM32
Maxwell main
azonenberg
280 × 195 mm987 parts8LBSD-3-Clause193STM32
Cheetah-MX4-Mini
KaiPereira
81.6 × 88.8 mm165 parts4LCERN-OHL-P-2.0180Sharp memory display breakout
karnadii
35.6 × 22 mm11 parts2LCERN-OHL-P-2.0168RP2040/RP2350
BusPirate-5-rev10
DangerousPrototypes
60.5 × 60 mm210 parts4LMIT123ESP32
Bitclock
goat-hill
78 × 48 mm58 parts4LMIT112AVR/Arduino
Qron0b
qewer33
35 × 35 mm29 parts2LGPL-3.062STM32
Oscar components
dchwebb
71 × 100 mm63 parts4LUnlicense38STM32
Mist
modern-hobbyist
372.1 × 141.2 mm445 parts2LMIT25RP2040/RP2350
RaspberryPi-Pico-Motor-Expansion-Board
eamars
91.7 × 66.8 mm63 parts4LGPL-3.018AVR/Arduino
MSAP-2 rev.A
mehrantsi
240 × 1056 mm658 parts2LMIT13Ardor
balazsbencs
37 × 20.5 mm20 parts2LMIT12RP2040/RP2350
Mainboard
mincrmatt12
136.3 × 71.1 mm160 parts4LMIT11Unoq power shield
ramalamadingdong
53.3 × 68.6 mm49 parts4LGPL-3.04AVR/Arduino
KOTH V2
Salted-Peanuts
100 × 100 mm41 parts4LMIT4Grid10x10
atopile
33.6 × 35.5 mm200 parts4LMIT4.0kDisplay Carrier
AxxAxx
35.6 × 58.2 mm5 parts2LGPL-3.01.7kSTM32
EEZ DIB MCU r1B1
eez-open
139 × 70 mm190 partsTAPR-OHL-1.0391FPGA
Host x1
azonenberg
91 × 83 mm243 parts4LBSD-3-Clause193Bp5-ir toy v3-rev3
DangerousPrototypes
23.8 × 38.5 mm34 parts2LMIT123Lcd Daughterboard
dchwebb
68 × 45 mm5 parts2LUnlicense38LCD adapter
maplerainresearch
28 × 49 mm4 parts2LCERN-OHL-1.238AVR/Arduino
MSAP-2 rev.A SMD
mehrantsi
178 × 711 mm658 parts2LMIT13Buttons
mincrmatt12
89.6 × 35.3 mm12 parts2LMIT11Unoq power shield
ramalamadingdong
53.3 × 68.6 mm49 parts4LGPL-3.04AVR/Arduino
Nerf timer
Salted-Peanuts
75.9 × 93.5 mm30 parts4LMIT4ESP32
Esp32 minimal
atopile
36.2 × 26.8 mm20 parts2LMIT4.0kEEZ DIB AUX-PS
eez-open
230.5 × 60 mm63 parts2LTAPR-OHL-1.0391Fanpico oled adapter
tjko
25 × 14.5 mm3 parts2LGPL-3.0238STM32
Entry afe characterization
azonenberg
75 × 77 mm226 parts4LBSD-3-Clause193