TypeScript JSON Serializer

typescript-json-serializer is a TypeScript library designed to facilitate the conversion between JavaScript/JSON objects and strongly-typed TypeScript classes. It leverages TypeScript decorators (`@JsonObject`, `@JsonProperty`) to define the serialization and deserialization mapping, allowing for complex nested structures, inheritance, and custom property transformations. The current stable version is 6.0.1, with a consistent release cadence that includes multiple major versions (v4, v5, v6) over a short period, indicating active maintenance and ongoing development. Its key differentiator lies in its declarative, decorator-driven approach, which provides a robust way to manage serialization logic directly within class definitions, including explicit support for enums, dates, and custom type resolvers. It also offers flexible configuration options for error handling, nullish value policies, and property name formatting, distinguishing it from simpler `JSON.parse`/`JSON.stringify` methods or libraries that rely purely on reflection without explicit decorator metadata.