ArduinoJson

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ArduinoJson is an Open Source & Models tool that provides a C++ JSON library for Arduino and embedded systems. It is designed to be simple, efficient, and portable for IoT applications.

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At a glance

Pricing

Open Source

Free tier

Yes

API

Yes

Skill level

Technical

About

What is ArduinoJson?

ArduinoJson is a highly efficient and simple C++ JSON library specifically designed for Arduino and other embedded systems. It offers robust JSON deserialization and serialization capabilities, including support for UTF-16 escape sequences, comments, and input filtering. Beyond JSON, it also handles MessagePack serialization and deserialization. The library is optimized for embedded environments, consuming less RAM and performing faster than alternative solutions. It is highly versatile, supporting custom allocators, various string types (String, std::string, std::string_view), and custom readers/writers. ArduinoJson is portable, compatible with C++11, C++14, and C++17, and works across a wide range of boards and development environments, making it a reliable choice for IoT and embedded C++ projects.

Best used for

Ideal for developers who need to efficiently parse and serialize JSON data on resource-constrained embedded systems and Arduino boards. Especially valuable for IoT projects requiring compact, fast, and portable JSON handling without significant overhead.

Common actions

parse JSON data

serialize JSON data

manage embedded data

develop IoT applications

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Capabilities

Key features

JSON deserialization
JSON serialization
MessagePack support
Efficient memory usage
Portable C++ library
Custom allocators
Supports various boards

Target Audience

developer

Integrations

Not yet documented

Pricing & Plans

Open Source

Free

FAQs

What makes ArduinoJson efficient for embedded systems?

ArduinoJson is designed for efficiency by consuming roughly 10% less RAM and performing almost 10% faster than the 'official' Arduino_JSON library. It also deduplicates strings and supports custom allocators, making it ideal for resource-constrained environments like Arduino and other IoT devices.

What C++ standards and boards does ArduinoJson support?

ArduinoJson is highly portable, compatible with C++11, C++14, and C++17, with C++98/C++03 support in older versions. It works with virtually any board, including Arduino Uno, ESP8266, ESP32, Teensy, and Particle boards, ensuring broad applicability across embedded projects.

Can ArduinoJson handle both JSON and MessagePack formats?

Yes, ArduinoJson provides comprehensive support for both JSON and MessagePack. It can perform deserialization and serialization for JSON documents, and also includes MessagePack serialization and deserialization capabilities, offering flexibility for various data exchange needs in embedded systems.

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