2,573 open source boards in Dev boards & breakouts
Development boards, breakouts, shields, HATs and carrier boards. 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.
X-TI-MSP-Devboard
Monacrylic
55 × 25 mm29 parts2LNo license2
Neo tracker hat
MTalon63
40 × 40 mm14 parts4LCustom license2
Apple II Breakout
akuker
100 × 80 mm8 parts2LBSD-3-Clause2
INA219 Breakout
UWCubeSat
10.2 × 20.3 mm7 parts2LNo license2
C mount
miniscope
370 × 146.7 mm6 parts2LCERN-OHL-S-2.02
Bb soic ssop-16
qboards
17.8 × 20.3 mm4 parts2LCC-BY-SA-4.02
Daughterboard before manual route patch
BoomBoxRobotics
155 × 80.6 mm104 parts2LCC0-1.01
Caravel 3.3V Development Board
chipfoundry
76.2 × 73.8 mm68 parts2LNo license1
NXPNuclone LPC845M301BD48 medium
Squantor
50 × 76.2 mm54 parts2LMIT1
Sunlord LCR Breakout
reivax-boucoi
99 × 99 mm44 parts2LNo license1
16bit Banked Switches
mwwhited
76.2 × 35.2 mm24 parts2LMIT1
RISC-VCh32v003 test board
74th
50 × 54 mm20 parts2LMIT1
LVDS.recovered.2026-09-26 152659
himanshu40304
85 × 37.5 mm9 parts2LNo license1
Mcp9808-breakout
embedrapp
18 × 15 mm6 parts2LMIT1
SST39SF040 ROM Unit
oberrow
38.8 × 49.9 mm3 parts2LMIT1
Breakout TLE6244
glocklueng
50.8 × 38.1 mm73 parts2LNo license0
Fab-Drawing caravel dev v5-M.2
Rimal12345
76.2 × 73.8 mm68 parts2LNo license0
NanoPi NEO USB HAT - Version 4.7
ConnectBox
66 × 81.6 mm63 parts2LNo license0
RP2040/RP2350Env Open Pico
MAHESH-THILAK-K
17.8 × 30.5 mm39 parts2LApache-2.00
134pin 7-967288-1
lanjay1
139.7 × 73.7 mm38 parts2LGPL-3.00
Xc9500xl 44 breakout
ep-infosec
39.1 × 44.3 mm29 parts2LApache-2.00
STM32STM32F103 DEV BOARD
laforestlabs
42.3 × 101.1 mm20 parts2LNo license0
ORA Arduino ESP CAN Shield Rev 1.15
gtrupiano
68.6 × 53.3 mm18 parts2LNo license0
XDuinoRail-Breakout-Railcom8x50
chatelao
24.1 × 15.2 mm16 parts2LAGPL-3.00
Microchip SAMSAMD10
cristobalcuevas
34 × 18 mm15 parts2LNo license0
Output
Robert-Riordan-UCD
109.7 × 49.5 mm15 parts2LCERN-OHL-P-2.00
E78-breakout
DaveRichmond
31.8 × 30.5 mm10 parts2LCustom license0
AVR/ArduinoAttiny416 breakout
sdp8483
25 × 41.4 mm9 parts2LMIT0
${BOARD NAME}
TrendBit
24 × 25.5 mm7 parts2LGPL-3.00
Df40-adapter
mikegoelzer
43 × 41 mm5 parts2LCustom license0
MyFirstKiCadProject
CrtomirJuren
30.5 × 12.7 mm3 parts2LNo license0
L0 Controller motor
Luos-io
20.3 × 15.3 mm11 parts2LMIT547
ESP32ESP32-PoE Rev G1
OLIMEX
28 × 75 mm119 parts2LApache-2.0407
Proto ufl match board
PantsForBirds
23 × 8 mm7 parts2LGPL-3.0322
ESP32ESP32-EVB
75.2 × 74.7 mm145 parts2LApache-2.0285
RP2040/RP2350Zpui shld wg12864b
CRImier
65 × 56 mm55 parts2LGPL-3.0253
Browse boards by part
AMS1117-3.3 1287USBLC6-2SC6 1056RP2040 725W25Q128JVS 444AP2112K-3.3 408TL072 347ESP32-S3-WROOM-1 324TL074 308CH340C 290L7805 29074HC595 267USBLC6-2P6 260Pico 258LM358 237AP2112K-3.3TRG1 22474LS04 207ESP32-WROOM-32 203Arduino_Nano_v3.x 202LM7805_TO220 20174LS245 18474LS138 176SRV05-4 17674LS08 17574LS32 175