Quicktype converts JSON data into type-safe code across various programming languages.

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Quicktype is for developers who need to work with JSON data without writing model and parsing code by hand. Paste a JSON sample or provide an API response, JSON Schema, or GraphQL query, then choose a target language to generate code that represents the data’s structure. It infers nested types and accounts for details such as optional or nullable fields, different values for the same field, and repeated strings that can be represented as enums. The generated output can include data models, serializers, and validation code in languages such as TypeScript, Python, Java, Swift, Go, and C#. Quicktype is useful when building an API client, integrating unfamiliar JSON, or creating typed models from sample responses.

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