What third-party libraries or components have you used in your projects?

Projects in C# often use the following third-party libraries and components:

• Newtonsoft.Json (Json.NET) — for serialization and deserialization of JSON.
• Entity Framework Core — ORM for working with databases.
• AutoMapper — for automatic object mapping.
• NUnit / xUnit / MSTest — for writing unit tests.
• Serilog / NLog / log4net — for logging.
• MediatR — for implementing the CQRS pattern and mediators.

Example of using Newtonsoft.Json:

using Newtonsoft.Json;

public class User {
    public string Name { get; set; }
    public int Age { get; set; }
}

var user = new User { Name = "Ivan", Age = 30 };
string json = JsonConvert.SerializeObject(user);