Credits

What this site stands on

A large part of ibouPCB was made and released by other people. What we use, who made it and under which licence is all written down here. The versions are copied from what is actually installed.

Simulation

Arduino code really runs in your browser because of these three. All three were released by Uri Shaked, who built Wokwi. They are the heart of our simulator, and we did not write them.

Name	Licence
avr8js 0.21.1 · by Uri Shaked Emulates the ATmega328P instruction by instruction. This is where the Uno examples run.	MIT
rp2040js 1.3.3 · by Uri Shaked Emulates the Raspberry Pi Pico's RP2040 the same way.	MIT
@wokwi/elements 1.9.2 · by Uri Shaked Every LED, button and sensor you see drawn comes from this library.	MIT

Board viewer

Name	Licence
KiCanvas · by Alethea Katherine Flowers Opens KiCad board files directly in the browser.	MIT

Code editor

Name	Licence
monaco-editor 0.52.2 · by Microsoft Corporation	MIT
@monaco-editor/react 4.7.0	MIT

Web

Name	Licence
Next.js 15	MIT
React 19	MIT
next-intl 4 · by Jan Amann	MIT
TypeScript 5 · by Microsoft Corporation	Apache-2.0

Backend

Name	Licence
FastAPI	MIT
Uvicorn	BSD-3-Clause
Pydantic	MIT
SQLAlchemy	MIT
Alembic	MIT
Celery	BSD-3-Clause
redis-py	MIT
httpx	BSD-3-Clause
PyJWT	MIT
argon2-cffi	MIT
Pillow	MIT-CMU
PyYAML	MIT

Called as separate processes

These four are GPL. We neither link nor bundle them; they are only ever invoked as separate processes. The design has been that way from the start so that our code never absorbs the GPL.

Name	Licence
KiCad 9 Builds the board, runs DRC and exports the Gerbers.	GPL-3.0-or-later
Freerouting 2.4.1 Lays the traces automatically.	GPL-3.0-or-later
arduino-cli 1.5.1 Compiles the sketches. The playground's .hex comes from here.	GPL-3.0
Espressif QEMU esp-develop-9.2.2 ESP32 cannot run in the browser, so it runs on the server under this.	GPL-2.0

Example sketches

Name	Licence
Arduino built-in examples 40 of the 53 examples are Arduino's own, and each file says "public domain" in its header. We wrote the other thirteen.	Public domain

Typefaces

Name	Licence
Space Grotesk	OFL-1.1
Noto Sans KR · JP	OFL-1.1
IBM Plex Mono	OFL-1.1

The MIT permission notice

Most of the list above is MIT. The licence asks that this text travel with the software, and printing it once is how a web service meets that obligation. The copyright holders are named at each project's link.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Thank you to everyone who made these. Without any one of them there would be no site.