Open source PCB designs you can simulate
21,636 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.
Oxikit-Brainboard
shridattdudhat
100 × 100 mm67 parts2LGPL-3.012
PIC1005-Flash-Programmer
wilsondr9999
88.3 × 54.6 mm31 parts4LAGPL-3.02
MFOS Wall-Wart PSU (Eurorack)
ckarcz
80 × 100 mm46 parts2LMIT0
Circuito-Disparo-Laser-CO2
FernandoVB01
100 × 70 mm45 parts2LMIT0
AC Clock Generator and Digit Reset Circuit
martinbros
111.8 × 50.8 mm30 parts2LGPL-3.02
AVR/ArduinoNode
aetas
41 × 44 mm14 parts2LMIT3
Cvbs effects
44.5 × 39.5 mm25 parts2LMIT0- schematic only · 29 parts
Cvbs decomposer
29 parts2LMIT0 
ESP8266Rgbw 12v controller
SmartHome-yourself
95.8 × 62.2 mm21 parts2LGPL-2.06
Browse boards by part
AMS1117-3.3 899USBLC6-2SC6 763RP2040 566W25Q128JVS 345AP2112K-3.3 273TL072 269TL074 250ESP32-S3-WROOM-1 229CH340C 221L7805 208Pico 19274HC595 185USBLC6-2P6 174LM358 16874LS04 160SRV05-4 158AP2112K-3.3TRG1 154ESP32-WROOM-32 15374LS245 14474LS138 138W25Q128JVSIQ 135Arduino_Nano_v3.x 13474LS00 133TP4056 130