JamesNK/Newtonsoft.Json
This system is a comprehensive JSON processing library for .NET, providing robust tools for serializing and deserializing objects, parsing and querying JSON via LINQ to JSON, and validating against JSON Schemas. It supports advanced data formats like BSON and XML conversion, while offering extensive customization through pluggable naming strategies, custom converters, and async capabilities. The codebase is heavily focused on maintaining high test coverage and performance benchmarking across multiple .NET versions.
59.7
Adequate · 5 August 2026
61k
lines of production code
C#
primary language
1
bus factor · 140 authors in all
4
measurements over time
How it got here
2007–2008 · Async support and converter expansion
This period focused on modernizing the project's build infrastructure and expanding its serialization capabilities. Key changes included migrating to the modern .NET SDK-style project format, introducing asynchronous loading and writing methods for LINQ to JSON, and adding new converters for ADO.NET, binary data, and dynamic objects.
11 changes
2009–2010 · Modularization and test expansion
This period focused on modularizing the library by extracting JSON Schema validation and BSON support into separate packages, while introducing a pluggable naming strategy for serialization. Concurrently, the team significantly expanded test coverage across serialization, schema validation, and utility classes to ensure stability.
11 changes
2012–2013 · Documentation and JSONPath expansion
This period focused on expanding the project's documentation and test coverage for core features, particularly around serialization, LINQ to JSON, and XML conversion. A significant technical update involved replacing the internal JSONPath implementation to support advanced query expressions, regex matching, and array slicing.
13 changes
2014–2017 · Performance benchmarking and test coverage
This period focused on establishing performance measurement infrastructure and expanding test coverage. A new console application was introduced to run benchmarks using BenchmarkDotNet, while extensive test suites were added to cover asynchronous parsing, serialization edge cases, and specific reported issues.
4 changes
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About this page
- The description of this project is derived from its own commit history, not from its README.
- The score is its highest published measurement, taken on 5 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
- Measured at commit 4f73e74372 — the exact code this score is about.
- Scored under rubric rubric-2026.08.19. Score the same commit under that rubric and you get the same number.