diff --git a/src/Skybrud.Essentials.AspNetCore/Attributes/NewtonsoftJson/NewtonsoftJsonOnlyConfigurationAttribute.cs b/src/Skybrud.Essentials.AspNetCore/Attributes/NewtonsoftJson/NewtonsoftJsonOnlyConfigurationAttribute.cs
deleted file mode 100644
index fea0cdf..0000000
--- a/src/Skybrud.Essentials.AspNetCore/Attributes/NewtonsoftJson/NewtonsoftJsonOnlyConfigurationAttribute.cs
+++ /dev/null
@@ -1,22 +0,0 @@
-using System;
-using Microsoft.AspNetCore.Mvc;
-using Skybrud.Essentials.AspNetCore.Filters.NewtonsoftJson;
-
-#pragma warning disable CS1591
-
-namespace Skybrud.Essentials.AspNetCore.Attributes.NewtonsoftJson {
-
-    /// <summary>
-    /// When added to an API controller, the output will be serialized to JSON using <strong>Newtonsoft.Json</strong>.
-    /// </summary>
-    [AttributeUsage(AttributeTargets.Class)]
-    [Obsolete("Use the class in the 'Skybrud.Essentials.AspNetCore.Json.Newtonsoft.Attributes' namespace instead.")]
-    public class NewtonsoftJsonOnlyConfigurationAttribute : TypeFilterAttribute {
-
-        public NewtonsoftJsonOnlyConfigurationAttribute() : base(typeof(NewtonsoftJsonOnlyConfigurationFilter)) {
-            Order = 1;
-        }
-
-    }
-
-}
\ No newline at end of file
diff --git a/src/Skybrud.Essentials.AspNetCore/Filters/NewtonsoftJson/NewtonsoftJsonOnlyConfigurationFilter.cs b/src/Skybrud.Essentials.AspNetCore/Filters/NewtonsoftJson/NewtonsoftJsonOnlyConfigurationFilter.cs
deleted file mode 100644
index 12cdd2c..0000000
--- a/src/Skybrud.Essentials.AspNetCore/Filters/NewtonsoftJson/NewtonsoftJsonOnlyConfigurationFilter.cs
+++ /dev/null
@@ -1,44 +0,0 @@
-using System;
-using System.Buffers;
-using Microsoft.AspNetCore.Mvc;
-using Microsoft.AspNetCore.Mvc.Filters;
-using Microsoft.AspNetCore.Mvc.Formatters;
-using Microsoft.Extensions.Options;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Converters;
-using Newtonsoft.Json.Serialization;
-
-#pragma warning disable CS1591
-
-namespace Skybrud.Essentials.AspNetCore.Filters.NewtonsoftJson {
-
-    [Obsolete("Use the class in the 'Skybrud.Essentials.AspNetCore.Json.Newtonsoft.Filters' namespace instead.")]
-    public class NewtonsoftJsonOnlyConfigurationFilter : IResultFilter {
-
-        private readonly ArrayPool<char> _arrayPool;
-        private readonly MvcOptions _options;
-
-        public NewtonsoftJsonOnlyConfigurationFilter(ArrayPool<char> arrayPool, IOptionsSnapshot<MvcOptions> options) {
-            _arrayPool = arrayPool;
-            _options = options.Value;
-        }
-
-        public void OnResultExecuted(ResultExecutedContext context) { }
-
-        public virtual void OnResultExecuting(ResultExecutingContext context) {
-
-            if (context.Result is not ObjectResult objectResult) return;
-
-            JsonSerializerSettings serializerSettings = new() {
-                ContractResolver = new DefaultContractResolver(),
-                Converters = { new VersionConverter() },
-            };
-
-            objectResult.Formatters.Clear();
-            objectResult.Formatters.Add(new NewtonsoftJsonOutputFormatter(serializerSettings, _arrayPool, _options));
-
-        }
-
-    }
-
-}
\ No newline at end of file
diff --git a/src/Skybrud.Essentials.AspNetCore/Models/Json/JsonBody.cs b/src/Skybrud.Essentials.AspNetCore/Models/Json/JsonBody.cs
deleted file mode 100644
index 36ad9ca..0000000
--- a/src/Skybrud.Essentials.AspNetCore/Models/Json/JsonBody.cs
+++ /dev/null
@@ -1,60 +0,0 @@
-using System;
-using System.Net;
-using Newtonsoft.Json;
-
-#pragma warning disable CS8618
-
-namespace Skybrud.Essentials.AspNetCore.Models.Json {
-
-    /// <summary>
-    /// Class representing the body of a JSON response.
-    /// </summary>
-    [Obsolete("Use the 'NewtonsoftJsonBody' class instead.")]
-    public class JsonBody {
-
-        /// <summary>
-        /// Gets or sets the meta data for the response.
-        /// </summary>
-        [JsonProperty(PropertyName = "meta")]
-        public JsonMetaData Meta { get; set; } = new();
-
-        /// <summary>
-        /// Gets or sets the data object.
-        /// </summary>
-        [JsonProperty(PropertyName = "data", NullValueHandling = NullValueHandling.Ignore)]
-        public object Data { get; set; }
-
-        #region Constructors
-
-        /// <summary>
-        /// Initializes a new instance with default options.
-        /// </summary>
-        public JsonBody() { }
-
-        /// <summary>
-        /// Initializes a new instance based on the specified <paramref name="status"/> and <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="status">The HTTP status.</param>
-        /// <param name="error">The error message.</param>
-        public JsonBody(HttpStatusCode status, string error) {
-            Meta.Code = status;
-            Meta.Error = error;
-        }
-
-        /// <summary>
-        /// Initializes a new instance based on the specified <paramref name="status"/>, <paramref name="error"/> message and <paramref name="data"/>.
-        /// </summary>
-        /// <param name="status">The HTTP status.</param>
-        /// <param name="error">The error message.</param>
-        /// <param name="data">The data.</param>
-        public JsonBody(HttpStatusCode status, string error, object data) {
-            Meta.Code = status;
-            Meta.Error = error;
-            Data = data;
-        }
-
-        #endregion
-
-    }
-
-}
\ No newline at end of file
diff --git a/src/Skybrud.Essentials.AspNetCore/Models/Json/JsonMetaData.cs b/src/Skybrud.Essentials.AspNetCore/Models/Json/JsonMetaData.cs
deleted file mode 100644
index 872bd39..0000000
--- a/src/Skybrud.Essentials.AspNetCore/Models/Json/JsonMetaData.cs
+++ /dev/null
@@ -1,29 +0,0 @@
-using System;
-using System.Net;
-using Newtonsoft.Json;
-
-#pragma warning disable CS8618
-
-namespace Skybrud.Essentials.AspNetCore.Models.Json {
-
-    /// <summary>
-    /// Class representing the meta data of a JSON response.
-    /// </summary>
-    [Obsolete("Use the 'NewtonsoftJsonMetaData' class instead.")]
-    public class JsonMetaData {
-
-        /// <summary>
-        /// Gets or sets the status code.
-        /// </summary>
-        [JsonProperty(PropertyName = "code")]
-        public HttpStatusCode Code { get; set; }
-
-        /// <summary>
-        /// Gets or sets the error message. If the error message is <c>NULL</c>, the property will not be a part of the JSON response.
-        /// </summary>
-        [JsonProperty(PropertyName = "error", NullValueHandling = NullValueHandling.Ignore)]
-        public string Error { get; set; }
-
-    }
-
-}
\ No newline at end of file
diff --git a/src/Skybrud.Essentials.AspNetCore/Models/Json/JsonNetResult.cs b/src/Skybrud.Essentials.AspNetCore/Models/Json/JsonNetResult.cs
deleted file mode 100644
index 4adc1b2..0000000
--- a/src/Skybrud.Essentials.AspNetCore/Models/Json/JsonNetResult.cs
+++ /dev/null
@@ -1,116 +0,0 @@
-using System;
-using System.Net;
-using Microsoft.AspNetCore.Mvc;
-using Newtonsoft.Json;
-
-#pragma warning disable CS8625
-
-namespace Skybrud.Essentials.AspNetCore.Models.Json {
-
-    /// <summary>
-    /// Class representing a JOSN based result serialized using <strong>Newtonsoft.Json</strong>.
-    /// </summary>
-    [Obsolete("Use the 'NewtonsoftJsonNetResult' class instead.")]
-    public class JsonNetResult : ContentResult {
-
-        #region Constructors
-
-        /// <summary>
-        /// Initializes a new <strong>200 OK</strong> result wrapping the specified <paramref name="value"/>.
-        /// </summary>
-        /// <param name="value">The value/body of the result. The value will be serialized to JSON before being returned to the client.</param>
-        public JsonNetResult(object value) : this(HttpStatusCode.OK, value) { }
-
-        /// <summary>
-        /// Initializes a new result with <paramref name="status"/> wrapping the specified <paramref name="value"/>.
-        /// </summary>
-        /// <param name="status">The HTTP status code.</param>
-        /// <param name="value">The value/body of the result. The value will be serialized to JSON before being returned to the client.</param>
-        public JsonNetResult(HttpStatusCode status, object value) {
-
-            // Serialize the data to a JSON string using JSON.net
-            string json = JsonConvert.SerializeObject(value, Formatting.None);
-
-            StatusCode = (int) status;
-            ContentType = "application/json";
-            Content = json;
-
-        }
-
-        #endregion
-
-        #region Static methods
-
-        /// <summary>
-        /// Returns a new <strong>200 OK</strong> result with the specified <paramref name="value"/>.
-        /// </summary>
-        /// <param name="value">The value/body of the result. The value will be serialized to JSON before being returned to the client.</param>
-        /// <returns>An instance of <see cref="JsonNetResult"/>.</returns>
-        public static JsonNetResult Ok(object value) {
-            return new JsonNetResult(HttpStatusCode.OK, value);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>201 Created</strong> result with the specified <paramref name="value"/>.
-        /// </summary>
-        /// <param name="value">The value/body of the result. The value will be serialized to JSON before being returned to the client.</param>
-        /// <returns>An instance of <see cref="JsonNetResult"/>.</returns>
-        public static JsonNetResult Created(object value) {
-            return new JsonNetResult(HttpStatusCode.Created, value);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>400 Bad Request</strong> result with the specified <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="error">A message describing the error.</param>
-        /// <returns>An instance of <see cref="JsonNetResult"/>.</returns>
-        public static JsonNetResult BadRequest(string error) {
-            JsonBody body = new(HttpStatusCode.BadRequest, error, null);
-            return new JsonNetResult(HttpStatusCode.BadRequest, body);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>401 Unauthorized</strong> result with the specified <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="error">A message describing the error.</param>
-        /// <returns>An instance of <see cref="JsonNetResult"/>.</returns>
-        public static JsonNetResult Unauthorized(string error) {
-            JsonBody body = new(HttpStatusCode.Unauthorized, error, null);
-            return new JsonNetResult(HttpStatusCode.Unauthorized, body);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>403 Forbidden</strong> result with the specified <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="error">A message describing the error.</param>
-        /// <returns>An instance of <see cref="JsonNetResult"/>.</returns>
-        public static JsonNetResult Forbidden(string error) {
-            JsonBody body = new(HttpStatusCode.Forbidden, error, null);
-            return new JsonNetResult(HttpStatusCode.Forbidden, body);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>404 Not Found</strong> result with the specified <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="error">A message describing the error.</param>
-        /// <returns>An instance of <see cref="JsonNetResult"/>.</returns>
-        public static JsonNetResult NotFound(string error) {
-            JsonBody body = new(HttpStatusCode.NotFound, error, null);
-            return new JsonNetResult(HttpStatusCode.NotFound, body);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>500 Internal Server Error</strong> result with the specified <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="error">A message describing the error.</param>
-        /// <returns>An instance of <see cref="JsonNetResult"/>.</returns>
-        public static JsonNetResult InternalError(string error) {
-            JsonBody body = new(HttpStatusCode.InternalServerError, error, null);
-            return new JsonNetResult(HttpStatusCode.InternalServerError, body);
-        }
-
-        #endregion
-
-    }
-
-}
\ No newline at end of file
diff --git a/src/Skybrud.Essentials.AspNetCore/Models/NewtonsoftJson/NewtonsoftJsonBody.cs b/src/Skybrud.Essentials.AspNetCore/Models/NewtonsoftJson/NewtonsoftJsonBody.cs
deleted file mode 100644
index 43dc46b..0000000
--- a/src/Skybrud.Essentials.AspNetCore/Models/NewtonsoftJson/NewtonsoftJsonBody.cs
+++ /dev/null
@@ -1,60 +0,0 @@
-using System;
-using System.Net;
-using Newtonsoft.Json;
-
-#pragma warning disable CS8618
-
-namespace Skybrud.Essentials.AspNetCore.Models.NewtonsoftJson {
-
-    /// <summary>
-    /// Class representing the body of a JSON response.
-    /// </summary>
-    [Obsolete("Use the class in the 'Skybrud.Essentials.AspNetCore.Json.Newtonsoft' namespace instead.")]
-    public class NewtonsoftJsonBody {
-
-        /// <summary>
-        /// Gets or sets the meta data for the response.
-        /// </summary>
-        [JsonProperty(PropertyName = "meta")]
-        public NewtonsoftJsonMetaData Meta { get; set; } = new();
-
-        /// <summary>
-        /// Gets or sets the data object.
-        /// </summary>
-        [JsonProperty(PropertyName = "data", NullValueHandling = NullValueHandling.Ignore)]
-        public object Data { get; set; }
-
-        #region Constructors
-
-        /// <summary>
-        /// Initializes a new instance with default options.
-        /// </summary>
-        public NewtonsoftJsonBody() { }
-
-        /// <summary>
-        /// Initializes a new instance based on the specified <paramref name="status"/> and <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="status">The HTTP status.</param>
-        /// <param name="error">The error message.</param>
-        public NewtonsoftJsonBody(HttpStatusCode status, string error) {
-            Meta.Code = status;
-            Meta.Error = error;
-        }
-
-        /// <summary>
-        /// Initializes a new instance based on the specified <paramref name="status"/>, <paramref name="error"/> message and <paramref name="data"/>.
-        /// </summary>
-        /// <param name="status">The HTTP status.</param>
-        /// <param name="error">The error message.</param>
-        /// <param name="data">The data.</param>
-        public NewtonsoftJsonBody(HttpStatusCode status, string error, object data) {
-            Meta.Code = status;
-            Meta.Error = error;
-            Data = data;
-        }
-
-        #endregion
-
-    }
-
-}
\ No newline at end of file
diff --git a/src/Skybrud.Essentials.AspNetCore/Models/NewtonsoftJson/NewtonsoftJsonMetaData.cs b/src/Skybrud.Essentials.AspNetCore/Models/NewtonsoftJson/NewtonsoftJsonMetaData.cs
deleted file mode 100644
index e618e61..0000000
--- a/src/Skybrud.Essentials.AspNetCore/Models/NewtonsoftJson/NewtonsoftJsonMetaData.cs
+++ /dev/null
@@ -1,29 +0,0 @@
-using System;
-using System.Net;
-using Newtonsoft.Json;
-
-#pragma warning disable CS8618
-
-namespace Skybrud.Essentials.AspNetCore.Models.NewtonsoftJson {
-
-    /// <summary>
-    /// Class representing the meta data of a JSON response.
-    /// </summary>
-    [Obsolete("Use the class in the 'Skybrud.Essentials.AspNetCore.Json.Newtonsoft' namespace instead.")]
-    public class NewtonsoftJsonMetaData {
-
-        /// <summary>
-        /// Gets or sets the status code.
-        /// </summary>
-        [JsonProperty(PropertyName = "code")]
-        public HttpStatusCode Code { get; set; }
-
-        /// <summary>
-        /// Gets or sets the error message. If the error message is <c>NULL</c>, the property will not be a part of the JSON response.
-        /// </summary>
-        [JsonProperty(PropertyName = "error", NullValueHandling = NullValueHandling.Ignore)]
-        public string Error { get; set; }
-
-    }
-
-}
\ No newline at end of file
diff --git a/src/Skybrud.Essentials.AspNetCore/Models/NewtonsoftJson/NewtonsoftJsonResult.cs b/src/Skybrud.Essentials.AspNetCore/Models/NewtonsoftJson/NewtonsoftJsonResult.cs
deleted file mode 100644
index 87076b4..0000000
--- a/src/Skybrud.Essentials.AspNetCore/Models/NewtonsoftJson/NewtonsoftJsonResult.cs
+++ /dev/null
@@ -1,116 +0,0 @@
-using System;
-using System.Net;
-using Microsoft.AspNetCore.Mvc;
-using Newtonsoft.Json;
-
-#pragma warning disable CS8625
-
-namespace Skybrud.Essentials.AspNetCore.Models.NewtonsoftJson {
-
-    /// <summary>
-    /// Class representing a JOSN based result serialized using <strong>Newtonsoft.Json</strong>.
-    /// </summary>
-    [Obsolete("Use the class in the 'Skybrud.Essentials.AspNetCore.Json.Newtonsoft' namespace instead.")]
-    public class NewtonsoftJsonResult : ContentResult {
-
-        #region Constructors
-
-        /// <summary>
-        /// Initializes a new <strong>200 OK</strong> result wrapping the specified <paramref name="value"/>.
-        /// </summary>
-        /// <param name="value">The value/body of the result. The value will be serialized to JSON before being returned to the client.</param>
-        public NewtonsoftJsonResult(object value) : this(HttpStatusCode.OK, value) { }
-
-        /// <summary>
-        /// Initializes a new result with <paramref name="status"/> wrapping the specified <paramref name="value"/>.
-        /// </summary>
-        /// <param name="status">The HTTP status code.</param>
-        /// <param name="value">The value/body of the result. The value will be serialized to JSON before being returned to the client.</param>
-        public NewtonsoftJsonResult(HttpStatusCode status, object value) {
-
-            // Serialize the data to a JSON string using JSON.net
-            string json = JsonConvert.SerializeObject(value, Formatting.None);
-
-            StatusCode = (int) status;
-            ContentType = "application/json";
-            Content = json;
-
-        }
-
-        #endregion
-
-        #region Static methods
-
-        /// <summary>
-        /// Returns a new <strong>200 OK</strong> result with the specified <paramref name="value"/>.
-        /// </summary>
-        /// <param name="value">The value/body of the result. The value will be serialized to JSON before being returned to the client.</param>
-        /// <returns>An instance of <see cref="NewtonsoftJsonResult"/>.</returns>
-        public static NewtonsoftJsonResult Ok(object value) {
-            return new NewtonsoftJsonResult(HttpStatusCode.OK, value);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>201 Created</strong> result with the specified <paramref name="value"/>.
-        /// </summary>
-        /// <param name="value">The value/body of the result. The value will be serialized to JSON before being returned to the client.</param>
-        /// <returns>An instance of <see cref="NewtonsoftJsonResult"/>.</returns>
-        public static NewtonsoftJsonResult Created(object value) {
-            return new NewtonsoftJsonResult(HttpStatusCode.Created, value);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>400 Bad Request</strong> result with the specified <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="error">A message describing the error.</param>
-        /// <returns>An instance of <see cref="NewtonsoftJsonResult"/>.</returns>
-        public static NewtonsoftJsonResult BadRequest(string error) {
-            NewtonsoftJsonBody body = new(HttpStatusCode.BadRequest, error, null);
-            return new NewtonsoftJsonResult(HttpStatusCode.BadRequest, body);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>401 Unauthorized</strong> result with the specified <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="error">A message describing the error.</param>
-        /// <returns>An instance of <see cref="NewtonsoftJsonResult"/>.</returns>
-        public static NewtonsoftJsonResult Unauthorized(string error) {
-            NewtonsoftJsonBody body = new(HttpStatusCode.Unauthorized, error, null);
-            return new NewtonsoftJsonResult(HttpStatusCode.Unauthorized, body);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>403 Forbidden</strong> result with the specified <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="error">A message describing the error.</param>
-        /// <returns>An instance of <see cref="NewtonsoftJsonResult"/>.</returns>
-        public static NewtonsoftJsonResult Forbidden(string error) {
-            NewtonsoftJsonBody body = new(HttpStatusCode.Forbidden, error, null);
-            return new NewtonsoftJsonResult(HttpStatusCode.Forbidden, body);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>404 Not Found</strong> result with the specified <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="error">A message describing the error.</param>
-        /// <returns>An instance of <see cref="NewtonsoftJsonResult"/>.</returns>
-        public static NewtonsoftJsonResult NotFound(string error) {
-            NewtonsoftJsonBody body = new(HttpStatusCode.NotFound, error, null);
-            return new NewtonsoftJsonResult(HttpStatusCode.NotFound, body);
-        }
-
-        /// <summary>
-        /// Returns a new <strong>500 Internal Server Error</strong> result with the specified <paramref name="error"/> message.
-        /// </summary>
-        /// <param name="error">A message describing the error.</param>
-        /// <returns>An instance of <see cref="NewtonsoftJsonResult"/>.</returns>
-        public static NewtonsoftJsonResult InternalError(string error) {
-            NewtonsoftJsonBody body = new(HttpStatusCode.InternalServerError, error, null);
-            return new NewtonsoftJsonResult(HttpStatusCode.InternalServerError, body);
-        }
-
-        #endregion
-
-    }
-
-}
\ No newline at end of file