549 open source ESP8266 boards
Espressif's original Wi-Fi microcontroller and its ESP-12 and ESP-01 modules. 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.
ESP8266DIY-Sonoff
LoZioo
59.2 × 42.9 mm16 parts2LMIT0
ESP8266WSLED Mini
devesh1995
27.4 × 49.5 mm15 parts2LUnlicense0
ESP8266Esp01s power board
idreamshen
53.3 × 33 mm15 parts2LNo license0
ESP8266Indoor sensor
Djuke-DIYAudio
65 × 40 mm14 parts2LNo license0
ESP8266Photo table
art-of-electronics
60 × 40.2 mm14 parts2LGPL-3.00
ESP8266Light
23wal
125 × 70 mm13 parts2LNo license0
ESP8266Roachslimes motherboard
crazy-hair
34.5 × 49.9 mm13 parts2LCC-BY-SA-4.00
ESP8266ElectraWiFiBoard
itay7564
69.3 × 34.5 mm13 parts2LMIT0
ESP8266EspFanPwm
lsr1
63 × 28 mm13 parts2LNo license0
ESP8266Arduino wifi button
87designer
68.6 × 53.3 mm11 parts2LNo license0
ESP8266WifiLightsController
David-Estevez
49.8 × 22 mm11 parts2LNo license0
ESP8266IoT-Project-Feeder
CharleezGithub
75.8 × 70.7 mm11 parts2LNo license0
ESP8266Esp12-environment sensor
hpbock
42.9 × 18.5 mm11 parts2LMIT0
ESP8266Wemos mains dev
chof747
74.2 × 46.5 mm10 parts2LCC0-1.00
ESP8266RCM-hardware-D1
RCMgames
44.5 × 40 mm10 parts2LMIT0
ESP8266IoT-temp based fan speed controller
LudoProvost
52 × 56 mm10 parts2LNo license0
ESP8266Fug
bboe
36 × 57 mm10 parts2LCC-BY-SA-4.00
ESP8266FM-Radio-Using-ESP-12E-and-RDA5807M
ItzzInfinity
47.5 × 28.3 mm9 parts2LMIT0
ESP8266Watering-System
ScottGibb
45.1 × 29.5 mm9 parts2LNo license0
ESP8266Smart-Home-Zisternen-Pegelmessung
Pytonballoon810
70 × 60 mm8 parts2LNo license0
ESP8266ESP distance measurement
alexelmi
116 × 64 mm8 parts2LMIT0
ESP8266Mk312-bt
orgasms4worldpeace
30 × 17 mm7 parts2LNo license0
ESP8266Environment board
easilok
83.2 × 30.9 mm6 parts2LNo license0
ESP8266Twomes co2-monitor hardware
energietransitie
28 × 33 mm4 parts2LCERN-OHL-P-2.00- schematic only · 44 partsESP8266
Elevox
debarshiputatunda
44 partsNo license0 - schematic only · 20 partsESP8266
Luna hub lite
jbrinkw
20 partsNo license0 - schematic only · 15 partsESP8266
AIIgniteEDA
aiignite
15 partsNo license0 
ESP8266RatGDO-OpenSource-Bare-ESP8266
Kaldek
55 × 82.7 mm20 parts2LMIT506
ESP8266Duet WIFI
Duet3D
100 × 123 mm345 partsCERN-OHL-1.2257
ESP8266Wiflier EXP B
cnlohr
37.8 × 21.5 mm61 parts2LMIT92
ESP8266Single radio
AnyLeaf
37.7 × 37.7 mm43 parts4LMIT63
ESP8266Lokkkarten Emulator
GBert
100 × 54 mm50 parts2LNo license36
ESP8266Tree
idlehandsdev
114.4 × 107.1 mm27 parts2LNo license33
ESP8266DCTransistor standard
LArkema
304.8 × 304.8 mm169 parts2LCC-BY-NC-4.030
ESP8266Wifi PB
AntonioMR
100 × 49.7 mm161 parts2LNo license29
ESP8266Led controller
thorio
64 × 26.9 mm21 parts2LGPL-3.028
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