Microsoft.Extensions.Configuration.Json 9.0.12

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.
153
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/dotnet/tree/c2435c3e0f46de784341ac3ed62863ce77e117b4
152
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.
151
ModelingEvolution.RuntimeConfiguration
Package Description
136
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/dotnet/tree/fad253f51b461736dfd3cd9c15977bb7493becef
53
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
24
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.
22
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
6
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/dotnet/tree/b0f34d51fccc69fd334253924abd8d6853fad7aa
4
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
3
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.
3
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
2

Version Downloads Last updated
11.0.0-preview.1.26104.118 1 02/17/2026
10.0.3 129 02/11/2026
10.0.2 1 02/11/2026
10.0.1 13 02/10/2026
10.0.0 152 02/10/2026
10.0.0-rc.2.25502.107 0 10/14/2025
10.0.0-rc.1.25451.107 0 09/09/2025
10.0.0-preview.7.25380.108 0 08/12/2025
10.0.0-preview.6.25358.103 0 07/15/2025
10.0.0-preview.5.25277.114 0 06/06/2025
10.0.0-preview.4.25258.110 0 05/12/2025
10.0.0-preview.3.25171.5 0 04/10/2025
10.0.0-preview.2.25163.2 0 03/18/2025
10.0.0-preview.1.25080.5 0 02/25/2025
9.0.13 1 02/17/2026
9.0.12 1 02/11/2026
9.0.11 1 02/11/2026
9.0.10 1 02/11/2026
9.0.9 0 09/09/2025
9.0.8 131 02/10/2026
9.0.7 1 02/24/2026
9.0.6 0 06/10/2025
9.0.5 0 05/13/2025
9.0.4 0 04/08/2025
9.0.3 0 03/11/2025
9.0.2 0 02/11/2025
9.0.1 1 02/24/2026
9.0.0 2 02/24/2026
9.0.0-rc.2.24473.5 0 10/08/2024
9.0.0-rc.1.24431.7 0 09/10/2024
9.0.0-preview.7.24405.7 0 08/13/2024
9.0.0-preview.6.24327.7 1 02/10/2026
9.0.0-preview.5.24306.7 1 02/10/2026
9.0.0-preview.4.24266.19 1 02/10/2026
9.0.0-preview.3.24172.9 1 02/10/2026
9.0.0-preview.2.24128.5 1 02/10/2026
9.0.0-preview.1.24080.9 0 02/13/2024
8.0.1 0 10/08/2024
8.0.0 0 11/14/2023
8.0.0-rc.2.23479.6 0 10/10/2023
8.0.0-rc.1.23419.4 0 09/12/2023
8.0.0-preview.7.23375.6 1 02/10/2026
8.0.0-preview.6.23329.7 1 02/10/2026
8.0.0-preview.5.23280.8 0 06/13/2023
8.0.0-preview.4.23259.5 1 02/10/2026
8.0.0-preview.3.23174.8 1 02/10/2026
8.0.0-preview.2.23128.3 0 03/14/2023
8.0.0-preview.1.23110.8 0 02/21/2023
7.0.0 0 11/07/2022
7.0.0-rc.2.22472.3 1 02/11/2026
7.0.0-rc.1.22426.10 1 02/10/2026
7.0.0-preview.7.22375.6 0 08/09/2022
7.0.0-preview.6.22324.4 0 07/12/2022
7.0.0-preview.5.22301.12 0 06/14/2022
7.0.0-preview.4.22229.4 0 05/10/2022
7.0.0-preview.3.22175.4 1 02/10/2026
7.0.0-preview.2.22152.2 0 03/14/2022
7.0.0-preview.1.22076.8 0 02/17/2022
6.0.1 0 11/12/2024
6.0.0 0 11/08/2021
6.0.0-rc.2.21480.5 0 10/12/2021
6.0.0-rc.1.21451.13 1 02/10/2026
6.0.0-preview.7.21377.19 1 02/10/2026
6.0.0-preview.6.21352.12 1 02/10/2026
6.0.0-preview.5.21301.5 0 06/15/2021
6.0.0-preview.4.21253.7 1 02/10/2026
6.0.0-preview.3.21201.4 0 04/08/2021
6.0.0-preview.2.21154.6 1 02/10/2026
6.0.0-preview.1.21102.12 0 02/12/2021
5.0.0 0 11/09/2020
5.0.0-rc.2.20475.5 1 02/11/2026
5.0.0-rc.1.20451.14 1 02/10/2026
5.0.0-preview.8.20407.11 1 02/10/2026
5.0.0-preview.7.20364.11 1 02/11/2026
5.0.0-preview.6.20305.6 0 06/25/2020
5.0.0-preview.5.20278.1 0 06/10/2020
5.0.0-preview.4.20251.6 0 05/18/2020
5.0.0-preview.3.20215.2 0 04/23/2020
5.0.0-preview.2.20160.3 0 04/02/2020
5.0.0-preview.1.20120.4 0 03/16/2020
3.1.32 1 02/10/2026
3.1.31 1 02/10/2026
3.1.30 1 02/10/2026
3.1.29 1 02/11/2026
3.1.28 1 02/11/2026
3.1.27 1 02/11/2026
3.1.26 1 02/11/2026
3.1.25 1 02/11/2026
3.1.24 1 02/11/2026
3.1.23 1 02/10/2026
3.1.22 1 02/10/2026
3.1.21 1 02/10/2026
3.1.20 1 02/11/2026
3.1.19 1 02/10/2026
3.1.18 1 02/10/2026
3.1.17 1 02/10/2026
3.1.16 1 02/10/2026
3.1.15 1 02/10/2026
3.1.14 1 02/10/2026
3.1.13 1 02/10/2026
3.1.12 1 02/10/2026
3.1.11 1 02/10/2026
3.1.10 1 02/10/2026
3.1.9 0 10/13/2020
3.1.8 0 09/08/2020
3.1.7 0 08/11/2020
3.1.6 0 07/14/2020
3.1.5 0 06/09/2020
3.1.4 0 05/12/2020
3.1.3 0 03/24/2020
3.1.2 0 02/18/2020
3.1.1 0 01/14/2020
3.1.0 0 12/03/2019
3.1.0-preview3.19553.2 1 02/10/2026
3.1.0-preview2.19525.4 1 02/11/2026
3.1.0-preview1.19506.1 1 02/10/2026
3.0.3 0 02/18/2020
3.0.2 0 01/14/2020
3.0.1 0 11/18/2019
3.0.0 0 09/23/2019
3.0.0-rc1.19456.10 0 09/16/2019
3.0.0-preview9.19423.4 1 02/11/2026
3.0.0-preview8.19405.4 1 02/11/2026
3.0.0-preview7.19362.4 1 02/11/2026
3.0.0-preview6.19304.6 1 02/10/2026
3.0.0-preview5.19227.9 1 02/11/2026
3.0.0-preview4.19216.2 1 02/11/2026
3.0.0-preview3.19153.1 1 02/10/2026
3.0.0-preview.19074.2 1 02/10/2026
3.0.0-preview.18572.1 1 02/10/2026
2.2.0 0 12/03/2018
2.2.0-preview3-35497 1 02/11/2026
2.2.0-preview2-35157 1 02/11/2026
2.2.0-preview1-35029 1 02/11/2026
2.1.1 0 06/18/2018
2.1.0 0 05/29/2018
2.1.0-rc1-final 1 02/10/2026
2.1.0-preview2-final 1 02/10/2026
2.1.0-preview1-final 1 02/10/2026
2.0.2 0 05/07/2018
2.0.1 0 03/13/2018
2.0.0 0 08/11/2017
2.0.0-preview2-final 1 02/10/2026
2.0.0-preview1-final 1 02/10/2026
1.1.2 0 05/09/2017
1.1.1 0 03/06/2017
1.1.0 0 11/16/2016
1.1.0-preview1-final 1 02/11/2026
1.0.2 0 03/06/2017
1.0.1 0 12/12/2016
1.0.0 0 06/27/2016
1.0.0-rc2-final 1 02/10/2026
1.0.0-rc1-final 1 02/10/2026