About Us nlohmannjson
The Developer’s Trusted Resource for JSON in C++
If you have ever worked with JSON data in a C++ project, chances are you have already encountered nlohmannjson one of the most widely used, most starred, and most trusted open-source libraries in the entire C++ ecosystem. At nlohmannjson.com, our mission is simple: to help developers at every level get the most out of this powerful library.
We are a dedicated team of C++ enthusiasts, software developers, and technical writers who understand the real-world challenges of working with JSON data in modern applications. From parsing API responses to managing configuration files, from serializing complex data structures to handling binary formats like BSON, CBOR, and MessagePack we have been in the trenches, and we built this platform to be the resource we always wished existed.
Who We Are
We are developers who work with C++ every day. Our team has hands-on experience building real-world applications across a wide range of domains backend systems, embedded software, API development, game engines, and enterprise-grade data pipelines. JSON handling sits at the heart of almost all of these, and nlohmann/json is the library we reach for first, every time.
Our contributors and technical team bring together expertise in modern C++ standards (C++11 through C++23), JSON data formats including RFC 6901 (JSON Pointer), RFC 6902 (JSON Patch), and RFC 7386 (JSON Merge Patch), as well as deep familiarity with build systems like CMake, package managers like vcpkg and Conan, and compiler environments ranging from GCC and Clang to MSVC and Apple Clang.
We are not just observers of this library we are active users of it, and that practical experience shapes every guide, example, and resource we publish.
Our Mission
Our mission is to make working with JSON in C++ as simple, efficient, and accessible as possible for developers of all experience levels.
The nlohmann/json library is already remarkable in what it offers intuitive syntax, header-only integration, zero external dependencies, full STL compatibility, and support for a wide range of serialization formats. But great documentation and practical guidance can make the difference between a developer who struggles with implementation details and one who ships clean, reliable code with confidence.
That is the gap we fill. We provide:
Clear, practical guides that go beyond the basics and tackle real implementation challenges developers actually face.
Accurate, up-to-date technical content covering everything from basic JSON parsing to advanced topics like SAX interfaces, custom serializers, arbitrary type conversions, and binary format support.
Beginner-friendly resources that introduce the library without overwhelming new C++ developers with unnecessary complexity.
Advanced references for experienced engineers who need precise, reliable information about edge cases, compiler compatibility, and performance considerations.
What We Offer
nlohmannjson.com is a comprehensive resource platform built around the nlohmann/json library. Here is what you will find on our site:
In-Depth Documentation & Guides Step-by-step guides covering every major feature of the library, from reading JSON files and creating objects from literals to implementing custom serializers and working with binary formats.
Practical Code Examples Real-world, copy-paste-ready examples for common use cases including API response parsing, configuration file management, serialization and deserialization of custom C++ types, and STL container conversions.
Integration Tutorials Clear instructions for integrating nlohmann/json into your project using CMake (external and embedded), vcpkg, Conan, and single-header inclusion.
Compiler Compatibility Information Up-to-date compatibility data covering GCC, Clang, Apple Clang, MSVC, Intel C++, and Nvidia CUDA compilers across supported C++ standards.
FAQ & Troubleshooting Answers to the most common developer questions, including performance considerations, cross-platform usage, serialization best practices, and handling non-default-constructible types.
Software Downloads Direct access to official library downloads, ensuring developers always have access to stable, verified releases.
Why Choose nlohmannjson.com
There is no shortage of C++ documentation on the internet but most of it is either outdated, overly academic, or disconnected from how real developers actually use these tools. Here is what makes nlohmannjson.com different:
Practitioner-First Approach Every piece of content we publish is written by developers who use this library in real projects. We do not just describe features we explain when to use them, why they matter, and how to avoid common pitfalls.
Accuracy You Can Rely On We maintain our content rigorously. When the library updates, we update too. Our compiler compatibility tables, integration guides, and API references reflect the actual current state of the library.
Coverage for Every Level Whether you are a beginner who just heard about nlohmann/json for the first time or an experienced systems programmer looking for specifics on SAX parsing or custom ADL serializers, you will find content pitched at exactly the right level.
Performance & Integration Focused We understand that performance matters. Our guides address real-world considerations including memory usage, parsing overhead, binary format trade-offs, and header-only integration patterns that keep your build clean.
Community Trusted nlohmann/json is used in hundreds of major projects, operating systems, and applications worldwide. Our platform serves the same global developer community that depends on this library every day.
Our Vision
Our long-term vision is to be the definitive, go-to resource for every developer who works with JSON in C++ whether they are just getting started or building mission-critical production systems.
We see a future where:
Every C++ developer can integrate JSON handling cleanly, confidently, and without friction. Resources keep pace with the library’s evolution across new C++ standards and compiler releases. The barrier between beginner and advanced usage continues to shrink through better documentation, examples, and community support.
We are actively building toward that vision publishing new content, improving existing guides, and growing a platform that the C++ development community can genuinely rely on.
Get In Touch
We welcome questions, feedback, collaboration proposals, and content suggestions from the developer community.
📧 Email: cloudcorex4@gmail.com
📱 WhatsApp: +971 55 912 8238
📍 Address: 284 Brooks Ln, Simpsonville, Kentucky, 40067, USA
🌐 Website: nlohmannjson.com
nlohmannjson.com Making JSON in C++ Simple, Fast, and Reliable.