Open source PCB designs you can simulate
23,543 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.
NXPTeensy eurorack
newdigate
118.1 × 101.6 mm100 parts2LMIT258
NXP00Key
ZeroZeroOne-dev
304.8 × 170.8 mm256 parts2LGPL-3.0243
NXPTSynth Teensy 4.1
Electrotechnique
312 × 140 mm105 parts2LNo license180
NXPVstcm V3 0FC
english1234
100 × 100 mm97 parts2LGPL-2.068
NXPTeensy eurorack
64.8 × 109.2 mm52 parts2LMIT27
NXPFjol
hallmar
184.7 × 110.7 mm204 parts2LNo license21
NXPTympan Rev E Hardware
Tympan
38 × 74 mm88 parts4LMIT14
NXPLED controller
Llamero
100 × 100 mm38 parts2LCC-BY-SA-4.08
NXPSigyn
wimblerobotics
96.5 × 76.2 mm73 parts4LApache-2.07
NXPHs lr midi schwurbler
mommel
153.4 × 98.5 mm40 parts2LCC-BY-NC-4.06
NXPEPROMEmu
BrianPeek
69 × 48 mm8 parts2LNo license5
NXPTeensy display shield
AnthonyDiGirolamo
179.3 × 66 mm50 parts4LApache-2.04- schematic only · 4 partsNXP
Cycloidal-Actuator-Design-Project
ratdo6
4 partsNo license3 
NXPAvionics project
TUSI-KHU
127.5 × 62 mm74 parts2LApache-2.02
NXPTeensy boardV 1
Cosys-Lab
66.5 × 46 mm590 parts2LCC-BY-SA-4.01
NXPMLU BreakoutV2
valex2
129.3 × 99 mm138 parts4LNo license1
NXPMLU BreakoutV2
ryos17
129.3 × 99 mm138 parts4LNo license1
NXP6-DOF-Robot-
hritesh94
102 × 100 mm40 parts4LMIT1
NXPInfozilla
USSTRocketry
134 × 45 mm31 parts2LMIT1
NXPSpectrum-Audio-Amp
anasarif23
178.8 × 171 mm242 parts4LNo license0
NXPMcguitarpedal
frsaba
123 × 113.5 mm113 parts2LNo license0
NXPTeensyPolySynth
ajharvie
355.6 × 97.8 mm81 parts2LNo license0
NXPInteractice Counter Controller
daniel-bornhorst
82.6 × 88.9 mm65 parts2LNo license0
NXPExoskeleton
Bihyungbetter
114.3 × 134.5 mm55 parts4LNo license0- schematic only · 65 partsNXP
Open source potentiostat
samueloblenes
65 partsCERN-OHL-S-2.00 
NXPXTMAX
MicroCoreLabs
81 × 46 mm14 parts4LNo license532
NXPTeensyv
100 × 100 mm74 parts2LGPL-2.068
NXPMain
root670
97 × 94 mm15 parts2LMIT12
NXPWearablePocketometer
kwan3217
66 × 38.1 mm81 parts2LGPL-2.02
NXPAvionics final 260706
127.5 × 62 mm67 parts2LApache-2.02
NXPPhoenix
80 × 35 mm18 parts2LMIT1
NXPArena 12-12 Teensy Modular LED Display
floesche
228.6 × 228.6 mm441 parts6LCC-BY-4.00
NXPCcm
Anteater-Electric-Racing
125 × 100 mm96 parts2LNo license0
NXPMCL68
31.6 × 84.1 mm13 parts4LNo license532
NXPTo order
151.4 × 80 mm111 parts2LNo license1
NXPMain Board 2025
LesKaribous
56 × 151 mm59 parts2LMIT1
About these open source PCB designs
Every board here is a published hardware project: a public GitHub repository with KiCad design files and a bill of materials. HardLabs reads those files directly — the board outline for its size, the copper layers, every footprint for the parts list — and draws the render from the layout itself, so what you see is the design as committed rather than a product photo.
Boards are indexed by the microcontroller they are built around, by what they are for, and by every IC and module on them. That makes the gallery a quick way to find a reference design: look up a part number to see how other engineers power, decouple and connect it.
Using an open source board as a reference design
- Find boards built on your chip or with the part you are designing around.
- Compare their size, layer count and bill of materials, and open the KiCad files on GitHub.
- Check the license before reusing any of the design.
- Simulate the firmware on HardLabs to test your changes before you order a PCB.
Open source PCB designs: common questions
What is an open source PCB?
A printed circuit board whose design files — schematic, layout and bill of materials — are published for anyone to study and, depending on the license, to modify and manufacture.
Are these PCB designs free to use?
It depends on each project's license. Open hardware licenses such as CERN-OHL and CC BY-SA, and software licenses such as MIT, allow reuse on their terms; a repository with no license keeps all rights with its author. Every board page shows its license.
What design files do the boards come with?
They are KiCad projects: the .kicad_pcb layout and the schematic (or a netlist from older KiCad versions), plus a bill of materials, usually a CSV. Each board page links to those files in the original GitHub repository.
How do I find boards that use a specific part?
Search for the part number, or open the part's page from the list of parts. It shows every board built with that part and the parts most often used alongside it.
How many boards are there, and how often is the list updated?
23,543 boards from 11,917 repositories today. New projects are found and added every night.
Can I test a board's firmware before ordering the PCB?
Yes. HardLabs builds a simulation of a board from its netlist and BOM, so you can boot and debug firmware against it with no hardware on your desk.