Microsoft.Extensions.Configuration.Json 10.0.0-preview.3.25171.5

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
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
 2,107
Microsoft.Extensions.Configuration.UserSecrets
User secrets configuration provider implementation for Microsoft.Extensions.Configuration. User secrets mechanism enables you to override application configuration settings with values stored in the local secrets file. You can use UserSecretsConfigurationExtensions.AddUserSecrets extension method on IConfigurationBuilder to add user secrets provider to the configuration builder.
 2,100
Microsoft.Extensions.Configuration.UserSecrets
User secrets configuration provider implementation for Microsoft.Extensions.Configuration. User secrets mechanism enables you to override application configuration settings with values stored in the local secrets file. You can use UserSecretsConfigurationExtensions.AddUserSecrets extension method on IConfigurationBuilder to add user secrets provider to the configuration builder.
 142
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
 102
EPPlus
A spreadsheet library for .NET framework and .NET core
 101
EPPlus
A spreadsheet library for .NET framework and .NET core
 93
EPPlus
Create advanced Excel spreadsheets using .NET
 92
EPPlus
A spreadsheet library for .NET framework and .NET core
 92
EPPlus
A spreadsheet library for .NET framework and .NET core
 88
EPPlus
A spreadsheet library for .NET framework and .NET core
 86
EPPlus
A spreadsheet library for .NET framework and .NET core
 85
Microsoft.AspNetCore.Components.WebAssembly
Build client-side single-page applications (SPAs) with Blazor running under WebAssembly. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/c9e3996173cec136bc2e9f3b4ec45f2a323b1d63
 84
EPPlus
A spreadsheet library for .NET framework and .NET core
 84
EPPlus
A spreadsheet library for .NET framework and .NET core
 83
EPPlus
A spreadsheet library for .NET framework and .NET core
 82

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

.NET Framework 4.6.2

.NET 8.0

.NET 9.0

.NET 10.0

.NET Standard 2.0

.NET Standard 2.1

Version Downloads Last updated
11.0.0 3 11/10/2026
11.0.0-rc.3.26522.148 12 10/25/2026
11.0.0-rc.2.26504.105 11 10/13/2026
11.0.0-rc.1.26425.128 23 09/09/2026
11.0.0-preview.7.26381.103 26 08/12/2026
11.0.0-preview.6.26359.118 25 07/15/2026
11.0.0-preview.5.26302.115 30 06/11/2026
11.0.0-preview.4.26230.115 34 05/14/2026
11.0.0-preview.3.26207.106 43 04/15/2026
11.0.0-preview.2.26159.112 41 03/11/2026
11.0.0-preview.1.26104.118 46 02/12/2026
10.0.15 3 11/10/2026
10.0.14 11 10/25/2026
10.0.13 25 10/13/2026
10.0.12 22 09/09/2026
10.0.11 139 08/12/2026
10.0.10 26 07/15/2026
10.0.9 28 06/11/2026
10.0.8 34 05/14/2026
10.0.7 2,098 04/21/2026
10.0.6 48 04/15/2026
10.0.5 54 03/13/2026
10.0.4 52 03/11/2026
10.0.3 38 02/12/2026
10.0.2 58 01/15/2026
10.0.1 8 10/09/2026
10.0.0 70 12/14/2025
10.0.0-rc.2.25502.107 42 12/17/2025
10.0.0-rc.1.25451.107 35 12/13/2025
10.0.0-preview.7.25380.108 36 12/16/2025
10.0.0-preview.6.25358.103 11 10/08/2026
10.0.0-preview.5.25277.114 8 10/11/2026
10.0.0-preview.4.25258.110 42 12/11/2025
10.0.0-preview.3.25171.5 50 12/16/2025
10.0.0-preview.2.25163.2 39 12/16/2025
10.0.0-preview.1.25080.5 42 12/16/2025
9.0.23 3 11/10/2026
9.0.22 11 10/25/2026
9.0.21 11 10/13/2026
9.0.20 23 09/09/2026
9.0.19 25 08/12/2026
9.0.18 26 07/15/2026
9.0.17 24 06/11/2026
9.0.16 37 05/14/2026
9.0.15 44 04/15/2026
9.0.14 48 03/11/2026
9.0.13 53 02/12/2026
9.0.12 53 01/15/2026
9.0.11 10 10/08/2026
9.0.10 9 09/28/2026
9.0.9 52 12/14/2025
9.0.8 53 12/11/2025
9.0.7 54 12/11/2025
9.0.6 57 12/12/2025
9.0.5 47 12/12/2025
9.0.4 38 12/16/2025
9.0.3 54 12/15/2025
9.0.2 42 12/12/2025
9.0.1 43 12/12/2025
9.0.0 46 12/11/2025
9.0.0-rc.2.24473.5 8 10/04/2026
9.0.0-rc.1.24431.7 42 12/16/2025
9.0.0-preview.7.24405.7 45 12/16/2025
9.0.0-preview.6.24327.7 39 12/14/2025
9.0.0-preview.5.24306.7 32 12/15/2025
9.0.0-preview.4.24266.19 43 12/11/2025
9.0.0-preview.3.24172.9 7 10/06/2026
9.0.0-preview.2.24128.5 42 12/11/2025
9.0.0-preview.1.24080.9 44 12/14/2025
8.0.1 19 09/28/2026
8.0.0 15 09/28/2026
8.0.0-rc.2.23479.6 48 12/14/2025
8.0.0-rc.1.23419.4 32 12/15/2025
8.0.0-preview.7.23375.6 45 12/11/2025
8.0.0-preview.6.23329.7 46 12/14/2025
8.0.0-preview.5.23280.8 34 12/16/2025
8.0.0-preview.4.23259.5 29 12/16/2025
8.0.0-preview.3.23174.8 45 12/14/2025
8.0.0-preview.2.23128.3 53 12/11/2025
8.0.0-preview.1.23110.8 39 12/11/2025
7.0.0 39 12/21/2025
7.0.0-rc.2.22472.3 48 12/14/2025
7.0.0-rc.1.22426.10 44 12/11/2025
7.0.0-preview.7.22375.6 34 12/16/2025
7.0.0-preview.6.22324.4 41 12/16/2025
7.0.0-preview.5.22301.12 9 10/06/2026
7.0.0-preview.4.22229.4 11 09/30/2026
7.0.0-preview.3.22175.4 44 12/15/2025
7.0.0-preview.2.22152.2 45 12/16/2025
7.0.0-preview.1.22076.8 45 12/16/2025
6.0.2-mauipre.1.22102.15 40 12/22/2025
6.0.2-mauipre.1.22054.8 42 12/21/2025
6.0.1 42 12/11/2025
6.0.0 60 12/11/2025
6.0.0-rc.2.21480.5 33 12/15/2025
6.0.0-rc.1.21451.13 47 12/14/2025
6.0.0-preview.7.21377.19 27 12/16/2025
6.0.0-preview.6.21352.12 46 12/14/2025
6.0.0-preview.5.21301.5 36 12/15/2025
6.0.0-preview.4.21253.7 50 12/16/2025
6.0.0-preview.3.21201.4 44 12/13/2025
6.0.0-preview.2.21154.6 51 12/14/2025
6.0.0-preview.1.21102.12 42 12/16/2025
5.0.0 47 12/13/2025
5.0.0-rc.2.20475.5 36 12/16/2025
5.0.0-rc.1.20451.14 47 12/14/2025
5.0.0-preview.8.20407.11 51 12/29/2025
5.0.0-preview.7.20364.11 44 12/16/2025
5.0.0-preview.6.20305.6 47 12/20/2025
5.0.0-preview.5.20278.1 47 12/16/2025
5.0.0-preview.4.20251.6 35 12/12/2025
5.0.0-preview.3.20215.2 43 12/14/2025
5.0.0-preview.2.20160.3 25 12/16/2025
5.0.0-preview.1.20120.4 46 12/16/2025
3.1.32 38 12/14/2025
3.1.31 44 12/16/2025
3.1.30 46 12/16/2025
3.1.29 33 12/14/2025
3.1.28 55 12/16/2025
3.1.27 58 12/16/2025
3.1.26 8 10/08/2026
3.1.25 51 12/16/2025
3.1.24 46 12/15/2025
3.1.23 47 12/16/2025
3.1.22 43 12/12/2025
3.1.21 48 12/16/2025
3.1.20 52 12/14/2025
3.1.19 50 12/16/2025
3.1.18 37 12/21/2025
3.1.17 38 12/14/2025
3.1.16 42 12/14/2025
3.1.15 37 12/21/2025
3.1.14 48 12/16/2025
3.1.13 46 12/15/2025
3.1.12 33 12/14/2025
3.1.11 51 12/16/2025
3.1.10 49 12/15/2025
3.1.9 39 01/12/2026
3.1.8 48 12/16/2025
3.1.7 52 12/16/2025
3.1.6 42 12/14/2025
3.1.5 49 12/16/2025
3.1.4 43 12/22/2025
3.1.3 44 12/16/2025
3.1.2 42 12/16/2025
3.1.1 49 12/16/2025
3.1.0 54 01/15/2026
3.1.0-preview3.19553.2 47 12/16/2025
3.1.0-preview2.19525.4 39 12/16/2025
3.1.0-preview1.19506.1 44 12/16/2025
3.0.3 52 12/13/2025
3.0.2 45 12/17/2025
3.0.1 48 12/16/2025
3.0.0 35 12/16/2025
3.0.0-rc1.19456.10 52 12/16/2025
3.0.0-preview9.19423.4 42 12/22/2025
3.0.0-preview8.19405.4 36 12/16/2025
3.0.0-preview7.19362.4 35 12/16/2025
3.0.0-preview6.19304.6 42 12/14/2025
3.0.0-preview5.19227.9 41 12/16/2025
3.0.0-preview4.19216.2 55 12/15/2025
3.0.0-preview3.19153.1 32 12/20/2025
3.0.0-preview.19074.2 39 12/16/2025
3.0.0-preview.18572.1 27 12/16/2025
2.2.0 44 12/16/2025
2.2.0-preview3-35497 48 12/16/2025
2.2.0-preview2-35157 44 12/16/2025
2.2.0-preview1-35029 45 12/16/2025
2.1.1 11 10/07/2026
2.1.0 49 12/16/2025
2.1.0-rc1-final 49 12/16/2025
2.1.0-preview2-final 44 12/16/2025
2.1.0-preview1-final 53 12/13/2025
2.0.2 40 12/16/2025
2.0.1 41 12/16/2025
2.0.0 36 12/16/2025
2.0.0-preview2-final 42 12/16/2025
2.0.0-preview1-final 49 12/15/2025
1.1.2 43 01/12/2026
1.1.1 47 01/10/2026
1.1.0 35 12/15/2025
1.1.0-preview1-final 46 12/21/2025
1.0.2 49 12/15/2025
1.0.1 51 12/16/2025
1.0.0 28 12/16/2025
1.0.0-rc2-final 43 12/16/2025
1.0.0-rc1-final 45 12/16/2025