nxjson

nxjson is a lightweight JSON parsing library for the C programming language. It is designed to be embeddable in small or resource-constrained environments, offering a compact and straightforward interface for reading JSON data.

The library represents JSON values using a simple in-memory structure that covers the standard JSON types: objects, arrays, strings, numbers, booleans, and null. Users can parse a JSON text into this in-memory representation and then navigate the resulting tree to access values by key in objects or by index in arrays. The API generally provides functions to parse JSON strings, inspect value types, and extract primitive data, along with basic error reporting to indicate parsing problems or type mismatches.

nxjson emphasizes portability and minimal dependencies, making it suitable for embedded systems and projects that require a small footprint. It typically consists of a compact C source file (and possibly a header) that can be included directly in a project, with support for standard C compilers. Memory management is designed to be straightforward, with the application responsible for handling allocation in typical use cases, though behavior can vary by implementation variant.

Common use cases include loading configuration data, lightweight data interchange in performance-constrained applications, and situations where a minimal JSON parser is preferred over heavier libraries. The project is distributed as open-source software, with source code and documentation available in a public repository. As with many such libraries, users should review the latest documentation and licensing terms to ensure compatibility with their project.