Open source PCB designs you can simulate
42,857 boards
Every public KiCad project we can find on GitHub, with its processor, full parts list and a render of the board. Any of them can be brought up in simulation: open one and run firmware on it before you order a single PCB.
42,857 boards|Most starred
Pi tin main
jackw01
89 × 55.5 mm77 parts2LCERN-OHL-W-2.073
Z80ctrlng
jblang
101.6 × 53.3 mm63 parts4LMIT73
ESP32D4 small
unsurv
32 × 45 mm53 parts4LGPL-3.073
AppleIIDiskIIStm32F411
vibr77
71.1 × 124.5 mm34 parts2LNo license73
AVR/ArduinoRS485 Soil moisture sensor
Miceuz
18 × 149 mm29 parts4LApache-2.073
Unisplit orthosteno
petercpark
247.7 × 76.2 mm29 parts2LCC-BY-NC-4.073- schematic only · 44 partsRP2040/RP2350
Chesapeake
dashs20
44 partsNo license73 
Pragmatic 54
jamessa
126.7 × 100.2 mm109 parts2LMIT72
Lu.i neuron
giant-axon
98.5 × 59.8 mm88 parts2LCERN-OHL-S-2.072
AVR/ArduinoScarab ESC+RX
MarkR42
25 × 40 mm51 parts4LGPL-3.072
AVR/ArduinoFilled
kzrtn
59.3 × 63 mm31 parts2LNo license72
PC-Engine
Board-Folk
130 × 125 mm127 parts2LNo license71
RP2040/RP2350RP2040 DSP - PCM3060
DMME-NL
166.2 × 92.6 mm105 parts2LGPL-3.071
RP2040/RP2350Rp gameboy cartridge hw
shilga
52.8 × 61.2 mm68 parts4LCERN-OHL-P-2.071
STM32PhaseLatchMini
AndersBNielsen
60.2 × 20.8 mm63 parts4LNo license71
STM32Throwback Operator
AidanHockey5
80 × 57.2 mm54 parts2LNo license71
STM32Bonsai C4
customMK
17.8 × 51.6 mm48 parts4LCERN-OHL-P-2.071
RP2040/RP2350Build a devboard
KaiPereira
21 × 51 mm33 parts2LNo license71
AVR/ArduinoRD40 display V1
lhm0
120 × 120 mm32 parts2LCC-BY-NC-4.071
Mhi ac ctrl esp32
hberntsen
51.6 × 26.8 mm8 parts2LMIT71- schematic only · 121 partsFPGA
Artix dc scm
antmicro
121 partsApache-2.071 
ESP32ESP32 Eurorack Audio Module
ctag-fh-kiel
100 × 100 mm167 parts4LNo license70
ProtoConn
Pakequis
200.7 × 185.4 mm151 parts2LCC-BY-SA-4.070
STM32SuperCap2024Control V1.1R F3 ISOPWR
hkustenterprize
40.5 × 59.5 mm141 parts4LGPL-3.070
Ultra DB X51 v1
ExploreEmbedded
178 × 145 mm132 partsBSD-3-Clause70
AVR/ArduinoMPCNC-Nano-Estlcam-Shield
tnn85
160 × 100 mm92 parts2LCustom license70
AVR/ArduinoLergo modular
AxelVoitier
96.3 × 96 mm72 parts2LNo license70
FPGABoard
c0pperdragon
43.2 × 53.3 mm70 parts2LMIT70
ESP32Esp32-4-channel relays
leomanangka
86.4 × 86.6 mm59 parts2LCERN-OHL-P-2.070
ESP8266Window-Door sensor-Version-5
gadjet
31.5 × 20.6 mm30 parts2LGPL-2.070
AquaMQTT
tspopp
45 × 65 mm12 parts2LApache-2.070- schematic only · 77 parts
Snapdragon-845-baseboard
77 partsApache-2.070 
Amiga-SMD-500
amigalisa
368.3 × 254 mm556 parts2LCERN-OHL-S-2.069
GNSS Firehose
pmonta
117.9 × 99.1 mm457 parts4LTAPR-OHL-1.069
STM32Smoothiev2-prime
Smoothieware
110 × 110 mm409 parts4LNo license69
AVR/ArduinoGh80-3003
evyd13
444.1 × 151.2 mm276 parts2LCC-BY-SA-4.069
Browse boards by part
AMS1117-3.3 1847USBLC6-2SC6 1502RP2040 1017W25Q128JVS 654AP2112K-3.3 635ESP32-S3-WROOM-1 488TL072 446L7805 43674HC595 404TL074 404CH340C 392LM358 367Pico 356USBLC6-2P6 351AP2112K-3.3TRG1 345Arduino_Nano_v3.x 317LM7805_TO220 315ProMicro 29774LS04 285ESP32-WROOM-32 285PC817 260SRV05-4 25874LS245 257TP4056 250