Microsoft.Extensions.Configuration.Json 9.0.0

About

JSON configuration provider implementation for Microsoft.Extensions.Configuration. This package enables you to read your application's settings from a JSON file. You can use JsonConfigurationExtensions.AddJsonFile extension method on IConfigurationBuilder to add the JSON configuration provider to the configuration builder.

How to Use

The following example shows how to read application settings from the JSON configuration file.

using System;
using Microsoft.Extensions.Configuration;

class Program
{
    static void Main()
    {
        // Build a configuration object from JSON file
        IConfiguration config = new ConfigurationBuilder()
            .AddJsonFile("appsettings.json")
            .Build();

        // Get a configuration section
        IConfigurationSection section = config.GetSection("Settings");

        // Read simple values
        Console.WriteLine($"Server: {section["Server"]}");
        Console.WriteLine($"Database: {section["Database"]}");

        // Read a collection
        Console.WriteLine("Ports: ");
        IConfigurationSection ports = section.GetSection("Ports");

        foreach (IConfigurationSection child in ports.GetChildren())
        {
            Console.WriteLine(child.Value);
        }
    }
}

To run this example, include an appsettings.json file with the following content in your project:

{
  "Settings": {
    "Server": "example.com",
    "Database": "Northwind",
    "Ports": [ 80, 81 ]
  }
}

You can include a configuration file using a code like this in your .csproj file:

<ItemGroup>
  <Content Include="appsettings.json">
    <CopyToOutputDirectory>Always</CopyToOutputDirectory>
  </Content>
</ItemGroup>

Additional Documentation

Feedback & Contributing

Microsoft.Extensions.Configuration.Json is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

Showing the top 20 packages that depend on Microsoft.Extensions.Configuration.Json.

Packages Downloads
R4Mvc.Tools
R4Mvc is a tool that generates strongly typed helpers for ASP.NET Core MVC.
 133
Microsoft.AspNetCore.NodeServices
Invoke Node.js modules at runtime in ASP.NET Core applications.
 131
R4Mvc.Tools
R4Mvc is a tool that generates strongly typed helpers for ASP.NET Core MVC.
 124
Microsoft.AspNetCore.NodeServices
Invoke Node.js modules at runtime in ASP.NET Core applications.
 123
R4Mvc.Tools
R4Mvc is a tool that generates strongly typed helpers for ASP.NET Core MVC.
 122
Microsoft.AspNetCore.NodeServices
Invoke Node.js modules at runtime in ASP.NET Core applications.
 121
Microsoft.AspNetCore.NodeServices
Invoke Node.js modules at runtime in ASP.NET Core applications.
 120
Microsoft.AspNetCore.NodeServices
Invoke Node.js modules at runtime in ASP.NET Core applications.
 119
R4Mvc.Tools
R4Mvc is a tool that generates strongly typed helpers for ASP.NET Core MVC.
 118
Microsoft.AspNetCore.NodeServices
Invoke Node.js modules at runtime in ASP.NET Core applications.
 115
R4Mvc.Tools
R4Mvc is a tool that generates strongly typed helpers for ASP.NET Core MVC.
 114
Microsoft.AspNetCore.NodeServices
Invoke Node.js modules at runtime in ASP.NET Core applications.
 110
R4Mvc.Tools
R4Mvc is a tool that generates strongly typed helpers for ASP.NET Core MVC.
 110
Microsoft.AspNetCore.NodeServices
Invoke Node.js modules at runtime in ASP.NET Core applications.
 109
Microsoft.AspNetCore.NodeServices
Invoke Node.js modules at runtime in ASP.NET Core applications.
 107

https://go.microsoft.com/fwlink/?LinkID=799421

.NET Framework 4.6.2

.NET 8.0

.NET 9.0

.NET Standard 2.0

.NET Standard 2.1

Version Downloads Last updated
10.0.0 24 11/13/2025
10.0.0-rc.2.25502.107 31 10/17/2025
10.0.0-rc.1.25451.107 39 9/10/2025
10.0.0-preview.7.25380.108 43 8/13/2025
10.0.0-preview.6.25358.103 53 7/20/2025
10.0.0-preview.5.25277.114 46 6/8/2025
10.0.0-preview.4.25258.110 45 5/22/2025
10.0.0-preview.3.25171.5 44 4/14/2025
10.0.0-preview.2.25163.2 70 3/19/2025
10.0.0-preview.1.25080.5 63 2/26/2025
9.0.11 17 11/13/2025
9.0.10 28 10/17/2025
9.0.9 42 9/10/2025
9.0.8 43 8/6/2025
9.0.7 53 7/12/2025
9.0.6 39 6/19/2025
9.0.5 54 5/24/2025
9.0.4 65 4/9/2025
9.0.3 53 3/12/2025
9.0.2 56 2/19/2025
9.0.1 73 1/23/2025
9.0.0 72 11/13/2024
9.0.0-rc.2.24473.5 66 10/15/2024
9.0.0-rc.1.24431.7 58 9/12/2024
9.0.0-preview.7.24405.7 82 8/13/2024
9.0.0-preview.6.24327.7 77 7/10/2024
9.0.0-preview.5.24306.7 71 6/14/2024
9.0.0-preview.4.24266.19 72 5/24/2024
9.0.0-preview.3.24172.9 65 4/13/2024
9.0.0-preview.2.24128.5 78 3/14/2024
9.0.0-preview.1.24080.9 81 2/27/2024
8.0.1 59 10/22/2024
8.0.0 92 11/16/2023
8.0.0-rc.2.23479.6 87 10/17/2023
8.0.0-rc.1.23419.4 87 9/18/2023
8.0.0-preview.7.23375.6 85 8/23/2023
8.0.0-preview.6.23329.7 86 7/31/2023
8.0.0-preview.5.23280.8 106 7/31/2023
8.0.0-preview.4.23259.5 80 7/16/2023
8.0.0-preview.3.23174.8 88 5/14/2023
8.0.0-preview.2.23128.3 83 5/14/2023
8.0.0-preview.1.23110.8 95 2/24/2023
7.0.0 90 12/3/2022
7.0.0-rc.2.22472.3 86 12/3/2022
7.0.0-rc.1.22426.10 83 9/16/2022
7.0.0-preview.7.22375.6 82 5/14/2023
7.0.0-preview.6.22324.4 87 8/5/2022
7.0.0-preview.5.22301.12 108 6/27/2022
7.0.0-preview.4.22229.4 90 6/27/2022
7.0.0-preview.3.22175.4 97 6/27/2022
7.0.0-preview.2.22152.2 88 6/27/2022
7.0.0-preview.1.22076.8 87 6/27/2022
6.0.2-mauipre.1.22102.15 95 6/27/2022
6.0.2-mauipre.1.22054.8 100 6/27/2022
6.0.1 58 11/13/2024
6.0.0 89 6/27/2022
6.0.0-rc.2.21480.5 78 6/27/2022
6.0.0-rc.1.21451.13 103 6/27/2022
6.0.0-preview.7.21377.19 78 6/27/2022
6.0.0-preview.6.21352.12 90 6/27/2022
6.0.0-preview.5.21301.5 100 6/27/2022
6.0.0-preview.4.21253.7 98 6/27/2022
6.0.0-preview.3.21201.4 95 6/27/2022
6.0.0-preview.2.21154.6 81 6/27/2022
6.0.0-preview.1.21102.12 97 6/27/2022
5.0.0 100 6/27/2022
5.0.0-rc.2.20475.5 98 6/27/2022
5.0.0-rc.1.20451.14 98 6/27/2022
5.0.0-preview.8.20407.11 85 6/27/2022
5.0.0-preview.7.20364.11 94 6/27/2022
5.0.0-preview.6.20305.6 92 6/27/2022
5.0.0-preview.5.20278.1 103 6/27/2022
5.0.0-preview.4.20251.6 88 6/27/2022
5.0.0-preview.3.20215.2 93 6/27/2022
5.0.0-preview.2.20160.3 93 6/26/2022
5.0.0-preview.1.20120.4 84 6/26/2022
3.1.32 91 2/21/2023
3.1.31 86 12/3/2022
3.1.30 81 12/3/2022
3.1.29 105 2/14/2023
3.1.28 81 8/30/2022
3.1.27 74 5/14/2023
3.1.26 91 6/27/2022
3.1.25 109 6/27/2022
3.1.24 88 6/27/2022
3.1.23 85 6/27/2022
3.1.22 93 6/27/2022
3.1.21 86 6/27/2022
3.1.20 90 6/27/2022
3.1.19 94 6/27/2022
3.1.18 82 6/27/2022
3.1.17 97 6/27/2022
3.1.16 84 6/27/2022
3.1.15 92 6/27/2022
3.1.14 89 6/27/2022
3.1.13 84 6/27/2022
3.1.12 78 6/27/2022
3.1.11 97 6/27/2022
3.1.10 112 6/27/2022
3.1.9 85 6/27/2022
3.1.8 98 6/27/2022
3.1.7 81 6/27/2022
3.1.6 109 6/27/2022
3.1.5 82 6/27/2022
3.1.4 92 6/27/2022
3.1.3 98 6/27/2022
3.1.2 96 6/27/2022
3.1.1 100 6/27/2022
3.1.0 92 6/27/2022
3.1.0-preview3.19553.2 95 6/27/2022
3.1.0-preview2.19525.4 90 6/27/2022
3.1.0-preview1.19506.1 91 6/27/2022
3.0.3 109 6/27/2022
3.0.2 97 6/27/2022
3.0.1 102 6/27/2022
3.0.0 90 6/27/2022
3.0.0-rc1.19456.10 93 6/27/2022
3.0.0-preview9.19423.4 111 6/27/2022
3.0.0-preview8.19405.4 87 6/27/2022
3.0.0-preview7.19362.4 90 6/27/2022
3.0.0-preview6.19304.6 92 6/27/2022
3.0.0-preview5.19227.9 97 6/27/2022
3.0.0-preview4.19216.2 91 6/27/2022
3.0.0-preview3.19153.1 97 6/27/2022
3.0.0-preview.19074.2 90 6/27/2022
3.0.0-preview.18572.1 95 6/27/2022
2.2.0 100 6/27/2022
2.2.0-preview3-35497 107 6/27/2022
2.2.0-preview2-35157 88 6/27/2022
2.2.0-preview1-35029 98 6/27/2022
2.1.1 94 6/27/2022
2.1.0 106 6/27/2022
2.1.0-rc1-final 92 6/27/2022
2.1.0-preview2-final 93 6/27/2022
2.1.0-preview1-final 111 6/27/2022
2.0.2 87 6/27/2022
2.0.1 101 6/27/2022
2.0.0 88 6/27/2022
2.0.0-preview2-final 102 6/27/2022
2.0.0-preview1-final 108 6/27/2022
1.1.2 89 6/13/2022
1.1.1 90 6/27/2022
1.1.0 96 6/27/2022
1.1.0-preview1-final 90 6/27/2022
1.0.2 95 6/27/2022
1.0.1 103 6/27/2022
1.0.0 86 6/27/2022
1.0.0-rc2-final 74 6/27/2022
1.0.0-rc1-final 106 6/27/2022