C Struct to JSON Schema Generator

The converter parses struct declarations with primitive fields, arrays, nested structs, and pointer fields (treated as optional). Comments are stripped automatically, so you can paste headers or DTO structs directly.

char/string fields become JSON strings, integral types map to integers, floating-point types become numbers, and arrays map to items arrays. Pointer fields are treated as optional, and unknown structs fall back to strings unless defined elsewhere in the snippet.

Yes. Paste several related structs and select the root struct from the settings dropdown. Everything runs locally inside your browser.

After generating the schema, click "Generate Mock Data" to open the Mock Generator with the schema preloaded. Configure locales, array counts, and optional fields to create sample payloads instantly.