JSON Serialization and File Storage in C#

Handling data is a core requirement for almost every modern application, and JSON is the industry-standard format for storing and exchanging information. If you need to save application settings, persist user data, or communicate with web APIs, understanding how to work with JSON files is essential. This text-only course guides you through the fundamentals of working with JSON in C#. You will learn how to convert complex application objects into JSON strings and reconstruct them back into clean, typed objects. By the end of this course, you will confidently manage file-based data storage using modern, high-performance serialization practices. What you will learn: Understand foundational JSON syntax and data types before writing any code; Serialize C# objects into structured JSON strings and write them safely to files; Deserialize JSON files back into strongly-typed C# objects and modern record types; Configure serialization options to customize formatting, handle camel casing, and ignore null values; Design robust Data Transfer Objects to safely map and isolate external data; Apply asynchronous file I/O operations to read and write JSON data without blocking application threads. The course begins with essential JSON concepts and terminology before transitioning into practical C# implementation. You will progress from basic serialization to advanced configuration options, working with real-world design patterns and file system integration. This course is designed for beginner C# developers who want to learn how to store and retrieve data. No prior experience with JSON or serialization is required, though a basic understanding of C# variables and classes is helpful. Start reading today to build reliable, data-driven applications.