JSON to C++ Struct
Convert JSON data to C++ structs with nlohmann/json serialization bindings. Auto-generate from_json functions.
Input
Output
C++ struct will appear here
What is JSON to C++ Struct?
JSON to C++ struct tool can automatically generate C++ struct definitions based on JSON data, as well as from_json serialization functions for use with the nlohmann/json library. Generated code includes correct type mappings (std::string, int, double, bool, std::vector, etc.), and corresponding nested structs are generated for nested objects. All fields use public access for direct access. Generated code can be directly used in C++ projects for JSON data parsing.
When to Use JSON to C++ Struct
Use when parsing JSON API responses in C++ projects, creating data models, working with the nlohmann/json library, or building data layers for C++ backend services.
How to Use JSON to C++ Struct
Paste JSON data into the input area. Enter the root struct name (optional, defaults to Root). Click the "Convert" button, and the generated C++ struct and serialization code will be displayed in the output area, including necessary #include directives.
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