What third-party tools or libraries do you use in your projects?

In C# projects, I often use the following third-party libraries and tools:

• Newtonsoft.Json — for convenient serialization and deserialization of JSON.
• NUnit / xUnit — for writing unit tests.
• Moq — for creating mock objects during testing.
• AutoMapper — for automatic object mapping between layers.
• Serilog / NLog — for logging.
• RestSharp — for easy work with HTTP requests.

Example of using Newtonsoft.Json for serializing an object:

using Newtonsoft.Json;

var person = new { Name = "Ivan", Age = 30 };
string json = JsonConvert.SerializeObject(person);
Console.WriteLine(json); // {"Name":"Ivan","Age":30}