Json.NET is a JSON serialization and deserialization library for .NET that emphasizes high performance and flexible object mapping.
The library solves the problem of converting between JSON text and .NET objects with fine-grained control over the serialization process. It provides attributes and settings that let developers customize how types are serialized, handle circular references, work with different naming conventions, and manage type information in JSON output. The approach centers on offering both simple one-line serialization for common cases and deep configuration options for complex scenarios, allowing the same library to serve straightforward use cases and intricate requirements.
Developers should choose this tool when they need mature, battle-tested JSON handling in .NET applications. It suits projects ranging from simple REST API clients to complex systems with custom type hierarchies or legacy data formats. The library is particularly valuable when you need control over serialization behavior that built-in .NET JSON tools may not provide, such as custom contract resolution, BSON support, or handling of non-standard JSON structures.
The project maintains steady activity with regular updates addressing bug reports and compatibility concerns. Development includes ongoing work to support new .NET versions and platforms. The maintainers respond to community issues and incorporate feedback from the large installed base. The project sustains comprehensive documentation and maintains backward compatibility across releases, reflecting a commitment to stability for the many applications depending on it.
