Microsoft.Extensions.Configuration.EnvironmentVariables 9.0.0-preview.6.24327.7

About

Environment variables configuration provider implementation for Microsoft.Extensions.Configuration. This package enables you to read configuration parameters from environment variables. You can use EnvironmentVariablesExtensions.AddEnvironmentVariables extension method on IConfigurationBuilder to add the environment variables configuration provider to the configuration builder.

How to Use

The following example shows how to read application configuration from environment variables.

using System;
using Microsoft.Extensions.Configuration;

class Program
{
    static void Main()
    {
        // Build a configuration object from environment variables
        IConfiguration config = new ConfigurationBuilder()
            .AddEnvironmentVariables()
            .Build();
        
        // Read configuration values
        Console.WriteLine($"Server: {config["Server"]}");
        Console.WriteLine($"Database: {config["Database"]}");
    }
}

Additional Documentation

Feedback & Contributing

Microsoft.Extensions.Configuration.EnvironmentVariables 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.EnvironmentVariables.

Packages Downloads
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
 24
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
 22
Microsoft.Extensions.Hosting
.NET Core hosting and startup infrastructures for applications.
 22
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
 21
Microsoft.Extensions.Hosting
.NET Core hosting and startup infrastructures for applications.
 21
Microsoft.Identity.Client.Extensions.Msal
This package contains extensions to Microsoft Authentication Library for .NET (MSAL.NET)
 21
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
 20
Microsoft.Extensions.Hosting
.NET Core hosting and startup infrastructures for applications.
 20
Microsoft.Identity.Client.Extensions.Msal
This package contains extensions to Microsoft Authentication Library for .NET (MSAL.NET)
 20
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications. When using NuGet 3.x this package requires at least version 3.4.
 20

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

.NET Framework 4.6.2

.NET 8.0

.NET 9.0

.NET Standard 2.0

Version Downloads Last updated
10.0.1 6 12/10/2025
10.0.0 9 11/15/2025
10.0.0-rc.2.25502.107 15 10/18/2025
10.0.0-rc.1.25451.107 20 09/20/2025
10.0.0-preview.7.25380.108 20 09/05/2025
10.0.0-preview.6.25358.103 21 09/05/2025
10.0.0-preview.5.25277.114 19 09/05/2025
10.0.0-preview.4.25258.110 21 09/05/2025
10.0.0-preview.3.25171.5 20 09/05/2025
10.0.0-preview.2.25163.2 20 09/05/2025
10.0.0-preview.1.25080.5 20 09/05/2025
9.0.11 9 11/16/2025
9.0.10 16 10/19/2025
9.0.9 19 09/21/2025
9.0.8 27 09/05/2025
9.0.7 21 09/05/2025
9.0.6 21 09/05/2025
9.0.5 21 09/05/2025
9.0.4 21 09/05/2025
9.0.3 20 09/05/2025
9.0.2 21 09/05/2025
9.0.1 21 09/05/2025
9.0.0 22 09/05/2025
9.0.0-rc.2.24473.5 21 09/05/2025
9.0.0-rc.1.24431.7 21 09/05/2025
9.0.0-preview.7.24405.7 20 09/05/2025
9.0.0-preview.6.24327.7 21 09/05/2025
9.0.0-preview.5.24306.7 21 09/05/2025
9.0.0-preview.4.24266.19 21 09/05/2025
9.0.0-preview.3.24172.9 20 09/05/2025
9.0.0-preview.2.24128.5 20 09/05/2025
9.0.0-preview.1.24080.9 21 09/05/2025
8.0.0 20 09/05/2025
8.0.0-rc.2.23479.6 19 09/05/2025
8.0.0-rc.1.23419.4 20 09/05/2025
8.0.0-preview.7.23375.6 20 09/05/2025
8.0.0-preview.6.23329.7 20 09/05/2025
8.0.0-preview.5.23280.8 20 09/05/2025
8.0.0-preview.4.23259.5 19 09/05/2025
8.0.0-preview.3.23174.8 19 09/05/2025
8.0.0-preview.2.23128.3 19 09/05/2025
8.0.0-preview.1.23110.8 20 09/05/2025
7.0.0 20 09/05/2025
7.0.0-rc.2.22472.3 19 09/05/2025
7.0.0-rc.1.22426.10 20 09/05/2025
7.0.0-preview.7.22375.6 20 09/05/2025
7.0.0-preview.6.22324.4 19 09/05/2025
7.0.0-preview.5.22301.12 20 09/05/2025
7.0.0-preview.4.22229.4 19 09/05/2025
7.0.0-preview.3.22175.4 20 09/05/2025
7.0.0-preview.2.22152.2 20 09/05/2025
7.0.0-preview.1.22076.8 19 09/05/2025
6.0.2 20 09/05/2025
6.0.1 19 09/05/2025
6.0.0 19 09/05/2025
6.0.0-rc.2.21480.5 20 09/05/2025
6.0.0-rc.1.21451.13 20 09/05/2025
6.0.0-preview.7.21377.19 20 09/05/2025
6.0.0-preview.6.21352.12 20 09/05/2025
6.0.0-preview.5.21301.5 20 09/05/2025
6.0.0-preview.4.21253.7 19 09/05/2025
6.0.0-preview.3.21201.4 20 09/05/2025
6.0.0-preview.2.21154.6 20 09/05/2025
6.0.0-preview.1.21102.12 20 09/05/2025
5.0.0 19 09/05/2025
5.0.0-rc.2.20475.5 19 09/05/2025
5.0.0-rc.1.20451.14 20 09/05/2025
5.0.0-preview.8.20407.11 19 09/05/2025
5.0.0-preview.7.20364.11 19 09/05/2025
5.0.0-preview.6.20305.6 20 09/05/2025
5.0.0-preview.5.20278.1 20 09/05/2025
5.0.0-preview.4.20251.6 20 09/05/2025
5.0.0-preview.3.20215.2 20 09/05/2025
5.0.0-preview.2.20160.3 19 09/05/2025
5.0.0-preview.1.20120.4 21 09/05/2025
3.1.32 18 09/05/2025
3.1.31 21 09/05/2025
3.1.30 19 09/05/2025
3.1.29 20 09/05/2025
3.1.28 20 09/05/2025
3.1.27 20 09/05/2025
3.1.26 20 09/05/2025
3.1.25 19 09/05/2025
3.1.24 19 09/05/2025
3.1.23 20 09/05/2025
3.1.22 20 09/05/2025
3.1.21 21 09/05/2025
3.1.20 20 09/05/2025
3.1.19 19 09/05/2025
3.1.18 20 09/05/2025
3.1.17 19 09/05/2025
3.1.16 20 09/05/2025
3.1.15 21 09/05/2025
3.1.14 20 09/05/2025
3.1.13 20 09/05/2025
3.1.12 19 09/05/2025
3.1.11 19 09/05/2025
3.1.10 19 09/05/2025
3.1.9 19 09/05/2025
3.1.8 19 09/05/2025
3.1.7 20 09/05/2025
3.1.6 19 09/05/2025
3.1.5 18 09/05/2025
3.1.4 20 09/05/2025
3.1.3 19 09/05/2025
3.1.2 18 09/05/2025
3.1.1 19 09/05/2025
3.1.0 19 09/05/2025
3.1.0-preview3.19553.2 20 09/05/2025
3.1.0-preview2.19525.4 19 09/05/2025
3.1.0-preview1.19506.1 18 09/05/2025
3.0.3 20 09/05/2025
3.0.2 21 09/05/2025
3.0.1 19 09/05/2025
3.0.0 19 09/05/2025
3.0.0-rc1.19456.10 19 09/05/2025
3.0.0-preview9.19423.4 20 09/05/2025
3.0.0-preview8.19405.4 21 09/05/2025
3.0.0-preview7.19362.4 21 09/05/2025
3.0.0-preview6.19304.6 19 09/05/2025
3.0.0-preview5.19227.9 21 09/05/2025
3.0.0-preview4.19216.2 21 09/05/2025
3.0.0-preview3.19153.1 21 09/05/2025
3.0.0-preview.19074.2 21 09/05/2025
3.0.0-preview.18572.1 21 09/05/2025
2.2.4 21 09/05/2025
2.2.0 19 09/05/2025
2.2.0-preview3-35497 21 09/05/2025
2.2.0-preview2-35157 20 09/05/2025
2.2.0-preview1-35029 22 09/05/2025
2.1.1 20 09/05/2025
2.1.0 21 09/05/2025
2.1.0-rc1-final 21 09/05/2025
2.1.0-preview2-final 20 09/05/2025
2.1.0-preview1-final 20 09/05/2025
2.0.2 20 09/05/2025
2.0.1 20 09/05/2025
2.0.0 19 09/05/2025
2.0.0-preview2-final 20 09/05/2025
2.0.0-preview1-final 20 09/05/2025
1.1.2 21 09/05/2025
1.1.1 20 09/05/2025
1.1.0 19 09/05/2025
1.1.0-preview1-final 19 09/05/2025
1.0.2 21 09/05/2025
1.0.1 21 09/05/2025
1.0.0 20 09/05/2025
1.0.0-rc2-final 20 09/05/2025
1.0.0-rc1-final 21 09/05/2025