Microsoft.Extensions.Configuration.EnvironmentVariables 9.0.11

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.AspNetCore
Microsoft.AspNetCore
 65
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications. This package was built from the source code at https://github.com/aspnet/Hosting/tree/0724e6cde1149ee1a19bfec9c13a2c9327b71213
 32
Microsoft.AspNetCore.AzureAppServices.HostingStartup
ASP.NET Core lightup integration with Azure AppServices. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/6939d9ab90aa1e57bb0619bb28819f7bcbfdbb54
 29
Microsoft.AspNetCore.AzureAppServices.HostingStartup
ASP.NET Core lightup integration with Azure AppServices. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/50b7e9c661453874aa7a54a3985d5120564bb2e5
 27
Microsoft.AspNetCore.AzureAppServices.HostingStartup
ASP.NET Core lightup integration with Azure AppServices. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/c75b3f7a2fb9fe21fd96c93c070fdfa88a2fbe97
 27
Microsoft.AspNetCore.AzureKeyVault.HostingStartup
ASP.NET Core lightup integration with Azure KeyVault.
 26
Stackage.Aws.Lambda
Custom runtime for .NET console bootstrap
 26
Microsoft.Extensions.Logging.AzureAppServices
Logger implementation to support Azure App Services 'Diagnostics logs' and 'Log stream' features. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/2924ca229b3d6c91b7c9eded119b31dfd7aa1fef
 26
Microsoft.AspNetCore.AzureAppServices.HostingStartup
ASP.NET Core lightup integration with Azure AppServices. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/1f050242559e7b90ff6c4ee7f99d92b3a5af5a62
 26
Microsoft.AspNetCore.AzureAppServices.HostingStartup
ASP.NET Core lightup integration with Azure AppServices. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/21d42143378ad6cc4bcbaebfda5f3acddf13aa47
 26
Microsoft.AspNetCore.AzureAppServices.HostingStartup
ASP.NET Core lightup integration with Azure AppServices. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/8ad057426fa6a27cd648b05684afddab9d97d3d9
 26
Microsoft.Extensions.Logging.AzureAppServices
Logger implementation to support Azure App Services 'Diagnostics logs' and 'Log stream' features. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/c70204ae3c91d2b48fa6d9b92b62265f368421b4
 26
Microsoft.AspNetCore
Microsoft.AspNetCore
 26
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications. When using NuGet 3.x this package requires at least version 3.4.
 25
Microsoft.AspNetCore
Microsoft.AspNetCore
 25
Microsoft.AspNetCore.AzureAppServices.HostingStartup
ASP.NET Core lightup integration with Azure AppServices. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/0a2e366eaf4d29b24b9a98e5782a04bef573189e
 25
Microsoft.AspNetCore.AzureAppServices.HostingStartup
ASP.NET Core lightup integration with Azure AppServices. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/39e0501ee91dcf2b9b885d647795184815fb0408
 25
Microsoft.AspNetCore.AzureAppServices.HostingStartup
ASP.NET Core lightup integration with Azure AppServices. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/68bb6fb08f8f85bb3cf08953a0d2f4a254eaccff
 25
Microsoft.AspNetCore.AzureAppServices.HostingStartup
ASP.NET Core lightup integration with Azure AppServices. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/25bd01f17d5f01fc78bea5eb5308b2c0d79e2889
 25

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
10.0.0 2 11/17/2025
10.0.0-rc.2.25502.107 4 10/16/2025
10.0.0-rc.1.25451.107 5 09/12/2025
10.0.0-preview.7.25380.108 7 08/14/2025
10.0.0-preview.6.25358.103 10 07/18/2025
10.0.0-preview.5.25277.114 11 06/08/2025
10.0.0-preview.4.25258.110 17 05/15/2025
10.0.0-preview.3.25171.5 18 04/14/2025
10.0.0-preview.2.25163.2 17 03/20/2025
10.0.0-preview.1.25080.5 15 02/28/2025
9.0.11 1 11/15/2025
9.0.10 5 10/16/2025
9.0.9 7 09/11/2025
9.0.8 7 08/08/2025
9.0.7 11 07/09/2025
9.0.6 10 06/12/2025
9.0.5 17 05/15/2025
9.0.4 16 04/12/2025
9.0.3 16 03/16/2025
9.0.2 16 02/27/2025
9.0.1 18 01/18/2025
9.0.0 19 11/18/2024
9.0.0-rc.2.24473.5 18 11/18/2024
9.0.0-rc.1.24431.7 15 10/07/2024
9.0.0-preview.7.24405.7 21 09/18/2024
9.0.0-preview.6.24327.7 21 10/07/2024
9.0.0-preview.5.24306.7 21 10/07/2024
9.0.0-preview.4.24266.19 23 10/07/2024
9.0.0-preview.3.24172.9 18 10/07/2024
9.0.0-preview.2.24128.5 22 10/07/2024
9.0.0-preview.1.24080.9 19 06/12/2024
8.0.0 21 03/10/2024
8.0.0-rc.2.23479.6 20 10/07/2024
8.0.0-rc.1.23419.4 21 10/07/2024
8.0.0-preview.7.23375.6 18 10/07/2024
8.0.0-preview.6.23329.7 18 10/04/2024
8.0.0-preview.5.23280.8 20 10/07/2024
8.0.0-preview.4.23259.5 22 10/07/2024
8.0.0-preview.3.23174.8 20 10/07/2024
8.0.0-preview.2.23128.3 17 10/07/2024
8.0.0-preview.1.23110.8 23 10/07/2024
7.0.0 20 01/19/2023
7.0.0-rc.2.22472.3 21 10/07/2024
7.0.0-rc.1.22426.10 22 10/07/2024
7.0.0-preview.7.22375.6 24 10/05/2024
7.0.0-preview.6.22324.4 21 10/05/2024
7.0.0-preview.5.22301.12 19 10/07/2024
7.0.0-preview.4.22229.4 21 10/07/2024
7.0.0-preview.3.22175.4 18 10/07/2024
7.0.0-preview.2.22152.2 22 10/04/2024
7.0.0-preview.1.22076.8 18 10/07/2024
6.0.2 18 11/18/2024
6.0.1 17 10/07/2024
6.0.0 21 04/19/2022
6.0.0-rc.2.21480.5 19 10/07/2024
6.0.0-rc.1.21451.13 19 10/07/2024
6.0.0-preview.7.21377.19 23 10/07/2024
6.0.0-preview.6.21352.12 23 10/07/2024
6.0.0-preview.5.21301.5 21 10/07/2024
6.0.0-preview.4.21253.7 21 10/07/2024
6.0.0-preview.3.21201.4 20 10/04/2024
6.0.0-preview.2.21154.6 18 10/07/2024
6.0.0-preview.1.21102.12 20 10/07/2024
5.0.0 18 10/03/2022
5.0.0-rc.2.20475.5 19 10/05/2024
5.0.0-rc.1.20451.14 21 10/04/2024
5.0.0-preview.8.20407.11 19 10/06/2024
5.0.0-preview.7.20364.11 15 10/06/2024
5.0.0-preview.6.20305.6 19 10/07/2024
5.0.0-preview.5.20278.1 21 10/07/2024
5.0.0-preview.4.20251.6 19 10/06/2024
5.0.0-preview.3.20215.2 20 10/07/2024
5.0.0-preview.2.20160.3 19 10/07/2024
5.0.0-preview.1.20120.4 21 10/07/2024
3.1.32 20 10/07/2024
3.1.31 16 10/03/2024
3.1.30 23 10/03/2024
3.1.29 17 10/07/2024
3.1.28 22 10/07/2024
3.1.27 20 10/07/2024
3.1.26 16 10/07/2024
3.1.25 17 10/07/2024
3.1.24 20 10/07/2024
3.1.23 19 10/07/2024
3.1.22 20 10/07/2024
3.1.21 21 10/06/2024
3.1.20 19 10/04/2024
3.1.19 16 10/07/2024
3.1.18 20 10/07/2024
3.1.17 19 10/07/2024
3.1.16 21 10/07/2024
3.1.15 17 10/04/2024
3.1.14 18 10/07/2024
3.1.13 20 10/07/2024
3.1.12 20 10/04/2024
3.1.11 21 10/07/2024
3.1.10 20 10/07/2024
3.1.9 18 02/05/2022
3.1.8 22 10/07/2024
3.1.7 18 10/07/2024
3.1.6 20 10/07/2024
3.1.5 17 10/02/2024
3.1.4 19 10/07/2024
3.1.3 21 11/23/2022
3.1.2 19 10/03/2024
3.1.1 19 10/07/2024
3.1.0 21 12/02/2022
3.1.0-preview3.19553.2 21 10/07/2024
3.1.0-preview2.19525.4 16 10/07/2024
3.1.0-preview1.19506.1 19 10/07/2024
3.0.3 22 10/07/2024
3.0.2 15 10/07/2024
3.0.1 20 10/07/2024
3.0.0 16 10/07/2024
3.0.0-rc1.19456.10 18 10/07/2024
3.0.0-preview9.19423.4 18 10/06/2024
3.0.0-preview8.19405.4 17 10/06/2024
3.0.0-preview7.19362.4 18 10/07/2024
3.0.0-preview6.19304.6 20 10/07/2024
3.0.0-preview5.19227.9 17 10/07/2024
3.0.0-preview4.19216.2 18 10/07/2024
3.0.0-preview3.19153.1 18 10/07/2024
3.0.0-preview.19074.2 19 10/07/2024
3.0.0-preview.18572.1 19 10/07/2024
2.2.4 22 05/19/2022
2.2.0 31 12/08/2021
2.2.0-preview3-35497 17 10/04/2024
2.2.0-preview2-35157 21 10/07/2024
2.2.0-preview1-35029 20 10/07/2024
2.1.1 20 10/04/2024
2.1.0 19 10/07/2024
2.1.0-rc1-final 20 10/07/2024
2.1.0-preview2-final 17 10/07/2024
2.1.0-preview1-final 25 10/07/2024
2.0.2 20 10/07/2024
2.0.1 17 10/07/2024
2.0.0 18 10/07/2024
2.0.0-preview2-final 20 10/03/2024
2.0.0-preview1-final 21 10/07/2024
1.1.2 22 10/05/2024
1.1.1 17 10/07/2024
1.1.0 20 10/07/2024
1.1.0-preview1-final 20 10/07/2024
1.0.2 21 10/02/2024
1.0.1 20 10/05/2024
1.0.0 20 10/07/2024
1.0.0-rc2-final 17 10/07/2024
1.0.0-rc1-final 20 10/03/2024