Newtonsoft.Json by: James Newton-King

Json.NET is a popular high-performance JSON framework for .NET

SixLabors.ImageSharp by: Six Labors and contributors

A new, fully featured, fully managed, cross-platform, 2D graphics API for .NET

UAParser by: enemaerke

A .net wrapper for the ua-parser library

System.Text.Json by: Microsoft

Provides high-performance and low-allocating types that serialize objects to JavaScript Object Notation (JSON) text and deserialize JSON text to objects, with UTF-8 support built-in. Also provides types to read and write JSON text encoded as UTF-8, and to create an in-memory document object model (DOM), that is read-only, for random access of the JSON elements within a structured view of the data. Commonly Used Types: System.Text.Json.JsonSerializer System.Text.Json.JsonDocument System.Text.Json.JsonElement System.Text.Json.Utf8JsonWriter System.Text.Json.Utf8JsonReader