Microsoft.Extensions.Configuration.Json 10.0.0-preview.2.25163.2

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.
 674
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.
 673
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/ada5ad97d2114250a05550cb28cc18b9cf9f8993
 50
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
 49
EPPlus
A spreadsheet library for .NET framework and .NET core
 44
EPPlus
A spreadsheet library for .NET framework and .NET core
 42
EPPlus
A spreadsheet library for .NET framework and .NET core
 41
EPPlus
A spreadsheet library for .NET framework and .NET core
 39
EPPlus
A spreadsheet library for .NET framework and .NET core
 37
EPPlus
A spreadsheet library for .NET framework and .NET core
 36
EPPlus
A spreadsheet library for .NET framework and .NET core
 35
EPPlus
A spreadsheet library for .NET framework and .NET core
 31
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/cd9340856ed85215a911c97c44d52373f6cba2f9
 30
EPPlus
A spreadsheet library for .NET framework and .NET core
 30
Microsoft.ApplicationInsights.AspNetCore
Application Insights for ASP.NET Core web applications. See https://azure.microsoft.com/documentation/articles/app-insights-asp-net-five/ for more information. Privacy statement: https://go.microsoft.com/fwlink/?LinkId=512156
 28

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-preview.2.26159.112 9 03/11/2026
11.0.0-preview.1.26104.118 12 02/12/2026
10.0.5 11 03/13/2026
10.0.4 11 03/11/2026
10.0.3 7 02/12/2026
10.0.2 14 01/15/2026
10.0.1 16 12/10/2025
10.0.0 9 12/14/2025
10.0.0-rc.2.25502.107 8 12/17/2025
10.0.0-rc.1.25451.107 8 12/13/2025
10.0.0-preview.7.25380.108 9 12/16/2025
10.0.0-preview.6.25358.103 8 12/09/2025
10.0.0-preview.5.25277.114 10 12/10/2025
10.0.0-preview.4.25258.110 8 12/11/2025
10.0.0-preview.3.25171.5 7 12/16/2025
10.0.0-preview.2.25163.2 9 12/16/2025
10.0.0-preview.1.25080.5 9 12/16/2025
9.0.14 9 03/11/2026
9.0.13 12 02/12/2026
9.0.12 14 01/15/2026
9.0.11 8 12/09/2025
9.0.10 10 12/10/2025
9.0.9 11 12/14/2025
9.0.8 12 12/11/2025
9.0.7 10 12/11/2025
9.0.6 12 12/12/2025
9.0.5 9 12/12/2025
9.0.4 10 12/16/2025
9.0.3 13 12/15/2025
9.0.2 13 12/12/2025
9.0.1 11 12/12/2025
9.0.0 11 12/11/2025
9.0.0-rc.2.24473.5 8 12/09/2025
9.0.0-rc.1.24431.7 7 12/16/2025
9.0.0-preview.7.24405.7 6 12/16/2025
9.0.0-preview.6.24327.7 14 12/14/2025
9.0.0-preview.5.24306.7 11 12/15/2025
9.0.0-preview.4.24266.19 14 12/11/2025
9.0.0-preview.3.24172.9 17 12/09/2025
9.0.0-preview.2.24128.5 9 12/11/2025
9.0.0-preview.1.24080.9 11 12/14/2025
8.0.1 8 12/09/2025
8.0.0 674 12/10/2025
8.0.0-rc.2.23479.6 7 12/14/2025
8.0.0-rc.1.23419.4 11 12/15/2025
8.0.0-preview.7.23375.6 9 12/11/2025
8.0.0-preview.6.23329.7 13 12/14/2025
8.0.0-preview.5.23280.8 13 12/16/2025
8.0.0-preview.4.23259.5 8 12/16/2025
8.0.0-preview.3.23174.8 10 12/14/2025
8.0.0-preview.2.23128.3 11 12/11/2025
8.0.0-preview.1.23110.8 9 12/11/2025
7.0.0 14 12/21/2025
7.0.0-rc.2.22472.3 12 12/14/2025
7.0.0-rc.1.22426.10 8 12/11/2025
7.0.0-preview.7.22375.6 10 12/16/2025
7.0.0-preview.6.22324.4 8 12/16/2025
7.0.0-preview.5.22301.12 8 12/10/2025
7.0.0-preview.4.22229.4 12 12/10/2025
7.0.0-preview.3.22175.4 10 12/15/2025
7.0.0-preview.2.22152.2 8 12/16/2025
7.0.0-preview.1.22076.8 10 12/16/2025
6.0.2-mauipre.1.22102.15 10 12/22/2025
6.0.2-mauipre.1.22054.8 13 12/21/2025
6.0.1 9 12/11/2025
6.0.0 14 12/11/2025
6.0.0-rc.2.21480.5 9 12/15/2025
6.0.0-rc.1.21451.13 13 12/14/2025
6.0.0-preview.7.21377.19 10 12/16/2025
6.0.0-preview.6.21352.12 10 12/14/2025
6.0.0-preview.5.21301.5 11 12/15/2025
6.0.0-preview.4.21253.7 11 12/16/2025
6.0.0-preview.3.21201.4 8 12/13/2025
6.0.0-preview.2.21154.6 11 12/14/2025
6.0.0-preview.1.21102.12 11 12/16/2025
5.0.0 11 12/13/2025
5.0.0-rc.2.20475.5 7 12/16/2025
5.0.0-rc.1.20451.14 10 12/14/2025
5.0.0-preview.8.20407.11 10 12/29/2025
5.0.0-preview.7.20364.11 11 12/16/2025
5.0.0-preview.6.20305.6 9 12/20/2025
5.0.0-preview.5.20278.1 12 12/16/2025
5.0.0-preview.4.20251.6 12 12/12/2025
5.0.0-preview.3.20215.2 12 12/14/2025
5.0.0-preview.2.20160.3 8 12/16/2025
5.0.0-preview.1.20120.4 12 12/16/2025
3.1.32 9 12/14/2025
3.1.31 9 12/16/2025
3.1.30 14 12/16/2025
3.1.29 8 12/14/2025
3.1.28 12 12/16/2025
3.1.27 11 12/16/2025
3.1.26 10 12/09/2025
3.1.25 10 12/16/2025
3.1.24 13 12/15/2025
3.1.23 11 12/16/2025
3.1.22 10 12/12/2025
3.1.21 8 12/16/2025
3.1.20 16 12/14/2025
3.1.19 8 12/16/2025
3.1.18 8 12/21/2025
3.1.17 7 12/14/2025
3.1.16 8 12/14/2025
3.1.15 9 12/21/2025
3.1.14 11 12/16/2025
3.1.13 9 12/15/2025
3.1.12 11 12/14/2025
3.1.11 12 12/16/2025
3.1.10 12 12/15/2025
3.1.9 6 01/12/2026
3.1.8 11 12/16/2025
3.1.7 9 12/16/2025
3.1.6 10 12/14/2025
3.1.5 8 12/16/2025
3.1.4 8 12/22/2025
3.1.3 8 12/16/2025
3.1.2 10 12/16/2025
3.1.1 9 12/16/2025
3.1.0 10 01/15/2026
3.1.0-preview3.19553.2 10 12/16/2025
3.1.0-preview2.19525.4 7 12/16/2025
3.1.0-preview1.19506.1 8 12/16/2025
3.0.3 14 12/13/2025
3.0.2 9 12/17/2025
3.0.1 10 12/16/2025
3.0.0 11 12/16/2025
3.0.0-rc1.19456.10 15 12/16/2025
3.0.0-preview9.19423.4 9 12/22/2025
3.0.0-preview8.19405.4 7 12/16/2025
3.0.0-preview7.19362.4 11 12/16/2025
3.0.0-preview6.19304.6 7 12/14/2025
3.0.0-preview5.19227.9 10 12/16/2025
3.0.0-preview4.19216.2 14 12/15/2025
3.0.0-preview3.19153.1 10 12/20/2025
3.0.0-preview.19074.2 7 12/16/2025
3.0.0-preview.18572.1 10 12/16/2025
2.2.0 12 12/16/2025
2.2.0-preview3-35497 11 12/16/2025
2.2.0-preview2-35157 11 12/16/2025
2.2.0-preview1-35029 9 12/16/2025
2.1.1 10 12/10/2025
2.1.0 8 12/16/2025
2.1.0-rc1-final 10 12/16/2025
2.1.0-preview2-final 12 12/16/2025
2.1.0-preview1-final 16 12/13/2025
2.0.2 10 12/16/2025
2.0.1 8 12/16/2025
2.0.0 11 12/16/2025
2.0.0-preview2-final 8 12/16/2025
2.0.0-preview1-final 10 12/15/2025
1.1.2 8 01/12/2026
1.1.1 8 01/10/2026
1.1.0 12 12/15/2025
1.1.0-preview1-final 11 12/21/2025
1.0.2 11 12/15/2025
1.0.1 13 12/16/2025
1.0.0 8 12/16/2025
1.0.0-rc2-final 12 12/16/2025
1.0.0-rc1-final 12 12/16/2025