
Code Kit
Drag-and-Drop Coding for Arduino
Trusted by over 10,000 users in 120+ countries
Build amazing Arduino projects without writing a single line of code
A visual tool you can learn in minutes, not months. Drag, drop, and create with 150+ blocks for sensors, motors, and more.

Start building in three simple steps
Whether you’re a beginner or a seasoned maker, Code Kit lets you move quicker from idea to completed project.
01
Choose from 150+ blocks
02
Drag and drop to build your project
03
Upload to your board with one click
(Pro Feature)

Everything works together in Code Kit
A single interface to connect all your parts and make them do what you want.

Blocks for: Sensors • Motors • Displays • LEDs • Signal Processing • + More!
Core features
Instant code generation
Visually construct programs with an intuitive visual interface. Code Kit translates your blocks into Arduino C++ code in real-time.
One-click copy and download
Copy generated code to your clipboard in just a click, or download a zipped project to edit in the Arduino IDE.
Works with your favourite boards
Compatible with a wide range of boards, including Arduino and Espressif boards like the Arduino Uno and ESP32.
Over 150 blocks
Forget complicated libraries. Code Kit’s expansive block library makes it easy to control common components and make them work together as you want.
Example Projects
Not sure where to start? Our ready-to-run example projects are a great way to see Code Kit in action.
Explore by Component
Latest Projects
RTC LCD Analogue Clock
Simple Colour Identifier
Uses Colour Sensor
Join makers in over 120 countries
Join a global community of makers using Code Kit to create new inventions, learn new skills, and share what they’ve built with the world. Code Kit was built for people like you, and we’re excited to see what you’ll create with it.

FAQs
Discover answers to some of the most-asked questions about Code Kit.
Can’t find what you’re looking for? Please contact our friendly team.
How does Code Kit compare to text-based Arduino programming?
Code Kit offers a visual, block-based approach that’s more intuitive for beginners and faster for prototyping. However, it also generates standard Arduino C++ code, helping users transition to text-based programming when they’re ready.
Many experienced makers use Code Kit for rapid prototyping before fine-tuning with traditional coding.
Can I use my existing Arduino libraries with Code Kit?
While Code Kit includes blocks for many popular libraries, you can’t directly import custom libraries. However, users can add custom code blocks, allowing integration of specialised functions. We’re constantly expanding our library support based on user feedback.
How often do you add new features or blocks?
We release updates multiple times per month, including new blocks and features. Code Kit is continually improving, with Pro users getting early access to exciting new features.
Is there a mobile app version of Code Kit?
While we don’t have a dedicated mobile app, our web version is fully responsive and works well on tablets and smartphones. Pro users can access all features through supported mobile browsers.
How does Code Kit support the transition from block-based to text-based coding?
Code Kit automatically generates clean, readable Arduino C++ code alongside the block workspace. Users can observe in real-time how the code changes as they manipulate blocks, learning fundamental programming concepts like loops, variables, and functions.
This real-time connection between blocks and code, combined with our focus on core programming principles, creates a natural bridge to text-based coding. This makes the transition to text-based coding easier and more intuitive for beginners.
How can I integrate Code Kit with my products?
If you are a company looking to use Code Kit with your products, we ask that you contact us to discuss possible solutions and/or collaborations. Please don’t advertise compatibility with Code Kit before reaching out—it is our goal to ensure each user’s experience is positive and well-designed.
Supported boards
Code Kit supports a wide range of Arduino and Arduino-compatible boards.
We’re continuously expanding our supported boards list. If you’re looking for a board that isn’t currently supported, let us know, and we’ll do our best to include it in future updates to Code Kit.
Arduino Uno R3 / R4
Arduino Ethernet
Arduino Uno Wifi
Arduino Nano ATmega328P / ATmega128
Arduino Nano Every
Arduino Duemilanove
Arduino Diecimila
Arduino Mega 2560 / ADK
Arduino Leonardo
Arduino Yun
Arduino Fio
Arduino Micro
Arduino Pro
Arduino Pro Mini
ESP8266
ESP32
ESP32-S2
ESP32-S3
ESP32-C3
ESP32-C6
ESP32-H2