Microsoft.Extensions.Configuration 9.0.3

Prefix Reserved
There is a newer version of this package available.
See the version list below for details.
dotnet add package Microsoft.Extensions.Configuration --version 9.0.3
                    
NuGet\Install-Package Microsoft.Extensions.Configuration -Version 9.0.3
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.3" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Microsoft.Extensions.Configuration" Version="9.0.3" />
                    
Directory.Packages.props
<PackageReference Include="Microsoft.Extensions.Configuration" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add Microsoft.Extensions.Configuration --version 9.0.3
                    
#r "nuget: Microsoft.Extensions.Configuration, 9.0.3"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#addin nuget:?package=Microsoft.Extensions.Configuration&version=9.0.3
                    
Install Microsoft.Extensions.Configuration as a Cake Addin
#tool nuget:?package=Microsoft.Extensions.Configuration&version=9.0.3
                    
Install Microsoft.Extensions.Configuration as a Cake Tool

About

Microsoft.Extensions.Configuration is combined with a core configuration abstraction under Microsoft.Extensions.Configuration.Abstractions that allows for building different kinds of configuration providers to retrieve key/value pair configuration values from in the form of IConfiguration. There are a number of built-in configuration provider implementations to read from environment variables, in-memory collections, JSON, INI or XML files. Aside from the built-in variations, there are more shipped libraries shipped by community for integration with various configuration service and other data sources.

Key Features

  • In-memory configuration provider
  • Chained configuration provider for chaining multiple confiugration providers together.
  • Base types that implement configuration abstraction interfaces that can be used when implementing other configuration providers.

How to Use

using Microsoft.Extensions.Configuration;

var configurationBuilder = new ConfigurationBuilder();

configurationBuilder.AddInMemoryCollection(
    new Dictionary<string, string?>
    {
        ["Setting1"] = "value",
        ["MyOptions:Enabled"] = bool.TrueString,
    });

configurationBuilder.AddInMemoryCollection(
    new Dictionary<string, string?>
    {
        ["Setting2"] = "value2",
        ["MyOptions:Enabled"] = bool.FalseString,
    });

var config = configurationBuilder.Build();

// note case-insensitive
Console.WriteLine(config["setting1"]);
Console.WriteLine(config["setting2"]);

// note last in wins
Console.WriteLine(config["MyOptions:Enabled"]);

Main Types

The main types provided by this library are:

  • Microsoft.Extensions.Configuration.ConfigurationBuilder
  • Microsoft.Extensions.Configuration.ConfigurationManager
  • Microsoft.Extensions.Configuration.ConfigurationRoot
  • Microsoft.Extensions.Configuration.ConfigurationSection

Additional Documentation

Feedback & Contributing

Microsoft.Extensions.Configuration is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (6.4K)

Showing the top 5 NuGet packages that depend on Microsoft.Extensions.Configuration:

Package Downloads
Microsoft.Extensions.Configuration.FileExtensions

Provides a base class for file-based configuration providers used with Microsoft.Extensions.Configuration and extension methods for configuring them.

Microsoft.Extensions.Configuration.Json

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.

Microsoft.Extensions.Configuration.EnvironmentVariables

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.

Microsoft.Extensions.Logging.Configuration

Configuration support for Microsoft.Extensions.Logging.

Microsoft.Extensions.Configuration.CommandLine

Command line configuration provider implementation for Microsoft.Extensions.Configuration. This package enables you to read configuration parameters from the command line arguments of your application. You can use CommandLineConfigurationExtensions.AddCommandLine extension method on IConfigurationBuilder to add the command line configuration provider to the configuration builder.

GitHub repositories (576)

Showing the top 20 popular GitHub repositories that depend on Microsoft.Extensions.Configuration:

Repository Stars
microsoft/semantic-kernel
Integrate cutting-edge LLM technology quickly and easily into your apps
icsharpcode/ILSpy
.NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!
dotnet/maui
.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.
ardalis/CleanArchitecture
Clean Architecture Solution Template: A proven Clean Architecture Template for ASP.NET Core 9
bitwarden/server
Bitwarden infrastructure/backend (API, database, Docker, etc).
dotnet/efcore
EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.
App-vNext/Polly
Polly is a .NET resilience and transient-fault-handling library that allows developers to express policies such as Retry, Circuit Breaker, Timeout, Bulkhead Isolation, and Fallback in a fluent and thread-safe manner. From version 6.0.1, Polly targets .NET Standard 1.1 and 2.0+.
Jackett/Jackett
API Support for your favorite torrent trackers
dotnet/AspNetCore.Docs
Documentation for ASP.NET Core
Sonarr/Sonarr
Smart PVR for newsgroup and bittorrent users.
Radarr/Radarr
Movie organizer/manager for usenet and torrent users.
chocolatey/choco
Chocolatey - the package manager for Windows
dotnet/orleans
Cloud Native application framework for .NET
d2phap/ImageGlass
🏞 A lightweight, versatile image viewer
JeffreySu/WeiXinMPSDK
微信全平台 .NET SDK, Senparc.Weixin for C#,支持 .NET Framework 及 .NET Core、.NET 8.0。已支持微信公众号、小程序、小游戏、微信支付、企业微信/企业号、开放平台、JSSDK、微信周边等全平台。 WeChat SDK for C#.
ThreeMammals/Ocelot
.NET API Gateway
Tyrrrz/DiscordChatExporter
Exports Discord chat logs to a file
microsoft/ailab
Experience, Learn and Code the latest breakthrough innovations with Microsoft AI
elsa-workflows/elsa-core
A .NET workflows library
ant-design-blazor/ant-design-blazor
🌈A rich set of enterprise-class UI components based on Ant Design and Blazor.
Version Downloads Last updated
10.0.0-preview.3.25171.5 692 4/10/2025
10.0.0-preview.2.25163.2 19,789 3/18/2025
10.0.0-preview.1.25080.5 29,260 2/25/2025
9.0.4 188,751 4/8/2025
9.0.3 3,650,512 3/11/2025
9.0.2 6,192,144 2/11/2025
9.0.1 7,456,298 1/14/2025
9.0.0 25,466,889 11/12/2024
9.0.0-rc.2.24473.5 342,267 10/8/2024
9.0.0-rc.1.24431.7 271,499 9/10/2024
9.0.0-preview.7.24405.7 127,521 8/13/2024
9.0.0-preview.6.24327.7 206,525 7/9/2024
9.0.0-preview.5.24306.7 134,008 6/11/2024
9.0.0-preview.4.24266.19 127,096 5/21/2024
9.0.0-preview.3.24172.9 213,173 4/11/2024
9.0.0-preview.2.24128.5 121,071 3/12/2024
9.0.0-preview.1.24080.9 139,554 2/13/2024
8.0.0 256,613,782 11/14/2023
8.0.0-rc.2.23479.6 771,640 10/10/2023
8.0.0-rc.1.23419.4 571,817 9/12/2023
8.0.0-preview.7.23375.6 276,638 8/8/2023
8.0.0-preview.6.23329.7 195,797 7/11/2023
8.0.0-preview.5.23280.8 189,449 6/13/2023
8.0.0-preview.4.23259.5 370,864 5/16/2023
8.0.0-preview.3.23174.8 273,350 4/11/2023
8.0.0-preview.2.23128.3 227,391 3/14/2023
8.0.0-preview.1.23110.8 163,861 2/21/2023
7.0.0 163,153,028 11/7/2022
7.0.0-rc.2.22472.3 323,268 10/11/2022
7.0.0-rc.1.22426.10 264,354 9/14/2022
7.0.0-preview.7.22375.6 249,064 8/9/2022
7.0.0-preview.6.22324.4 149,419 7/12/2022
7.0.0-preview.5.22301.12 87,899 6/14/2022
7.0.0-preview.4.22229.4 219,056 5/10/2022
7.0.0-preview.3.22175.4 103,028 4/13/2022
7.0.0-preview.2.22152.2 114,189 3/14/2022
7.0.0-preview.1.22076.8 102,589 2/17/2022
6.0.2 770,860 11/12/2024
6.0.1 141,800,095 3/8/2022
6.0.0 311,144,451 11/8/2021
6.0.0-rc.2.21480.5 641,814 10/12/2021
6.0.0-rc.1.21451.13 433,126 9/14/2021
6.0.0-preview.7.21377.19 247,262 8/10/2021
6.0.0-preview.6.21352.12 157,811 7/14/2021
6.0.0-preview.5.21301.5 113,500 6/15/2021
6.0.0-preview.4.21253.7 89,084 5/24/2021
6.0.0-preview.3.21201.4 271,552 4/8/2021
6.0.0-preview.2.21154.6 151,197 3/11/2021 6.0.0-preview.2.21154.6 is deprecated because it is no longer maintained.
6.0.0-preview.1.21102.12 191,967 2/12/2021 6.0.0-preview.1.21102.12 is deprecated because it is no longer maintained.
5.0.0 249,883,851 11/9/2020 5.0.0 is deprecated because it is no longer maintained.
5.0.0-rc.2.20475.5 306,682 10/13/2020 5.0.0-rc.2.20475.5 is deprecated because it is no longer maintained.
5.0.0-rc.1.20451.14 379,631 9/14/2020 5.0.0-rc.1.20451.14 is deprecated because it is no longer maintained.
5.0.0-preview.8.20407.11 366,971 8/25/2020 5.0.0-preview.8.20407.11 is deprecated because it is no longer maintained.
5.0.0-preview.7.20364.11 344,752 7/21/2020 5.0.0-preview.7.20364.11 is deprecated because it is no longer maintained.
5.0.0-preview.6.20305.6 85,213 6/25/2020 5.0.0-preview.6.20305.6 is deprecated because it is no longer maintained.
5.0.0-preview.5.20278.1 401,001 6/10/2020 5.0.0-preview.5.20278.1 is deprecated because it is no longer maintained.
5.0.0-preview.4.20251.6 152,090 5/18/2020 5.0.0-preview.4.20251.6 is deprecated because it is no longer maintained.
5.0.0-preview.3.20215.2 298,108 4/23/2020 5.0.0-preview.3.20215.2 is deprecated because it is no longer maintained.
5.0.0-preview.2.20160.3 321,739 4/2/2020 5.0.0-preview.2.20160.3 is deprecated because it is no longer maintained.
5.0.0-preview.1.20120.4 126,057 3/16/2020 5.0.0-preview.1.20120.4 is deprecated because it is no longer maintained.
3.1.32 15,066,233 12/13/2022
3.1.31 2,536,463 11/8/2022
3.1.30 3,217,137 10/11/2022
3.1.29 2,824,254 9/13/2022
3.1.28 2,701,867 8/9/2022
3.1.27 2,188,740 7/12/2022
3.1.26 1,886,262 6/14/2022
3.1.25 3,233,425 5/10/2022
3.1.24 12,251,402 4/11/2022
3.1.23 4,856,929 3/8/2022
3.1.22 22,562,847 12/14/2021
3.1.21 10,758,008 11/7/2021
3.1.20 5,820,160 10/11/2021
3.1.19 5,913,479 9/14/2021
3.1.18 44,635,957 8/10/2021
3.1.17 7,397,870 7/13/2021
3.1.16 11,339,630 6/8/2021
3.1.15 9,282,108 5/11/2021
3.1.14 17,485,174 4/6/2021
3.1.13 16,430,320 3/9/2021
3.1.12 12,723,538 2/9/2021
3.1.11 14,838,313 1/12/2021
3.1.10 29,088,934 11/9/2020
3.1.9 76,279,992 10/13/2020
3.1.8 69,791,586 9/8/2020
3.1.7 38,599,073 8/11/2020
3.1.6 43,536,159 7/14/2020
3.1.5 46,520,840 6/9/2020
3.1.4 48,428,211 5/12/2020
3.1.3 109,299,350 3/24/2020
3.1.2 80,931,261 2/18/2020
3.1.1 45,434,572 1/14/2020
3.1.0 305,860,569 12/3/2019
3.1.0-preview3.19553.2 238,130 11/13/2019 3.1.0-preview3.19553.2 is deprecated because it is no longer maintained.
3.1.0-preview2.19525.4 84,502 11/1/2019 3.1.0-preview2.19525.4 is deprecated because it is no longer maintained.
3.1.0-preview1.19506.1 1,204,024 10/15/2019 3.1.0-preview1.19506.1 is deprecated because it is no longer maintained.
3.0.3 75,189,880 2/18/2020 3.0.3 is deprecated because it is no longer maintained.
3.0.2 1,114,579 1/14/2020 3.0.2 is deprecated because it is no longer maintained.
3.0.1 7,258,818 11/18/2019 3.0.1 is deprecated because it is no longer maintained.
3.0.0 95,265,996 9/23/2019 3.0.0 is deprecated because it is no longer maintained.
3.0.0-rc1.19456.10 102,674 9/16/2019 3.0.0-rc1.19456.10 is deprecated because it is no longer maintained.
3.0.0-preview9.19423.4 1,586,099 9/4/2019 3.0.0-preview9.19423.4 is deprecated because it is no longer maintained.
3.0.0-preview8.19405.4 591,553 8/13/2019 3.0.0-preview8.19405.4 is deprecated because it is no longer maintained.
3.0.0-preview7.19362.4 340,304 7/23/2019 3.0.0-preview7.19362.4 is deprecated because it is no longer maintained.
3.0.0-preview6.19304.6 801,428 6/12/2019 3.0.0-preview6.19304.6 is deprecated because it is no longer maintained.
3.0.0-preview5.19227.9 864,321 5/6/2019 3.0.0-preview5.19227.9 is deprecated because it is no longer maintained.
3.0.0-preview4.19216.2 93,879 4/18/2019 3.0.0-preview4.19216.2 is deprecated because it is no longer maintained.
3.0.0-preview3.19153.1 393,683 3/6/2019 3.0.0-preview3.19153.1 is deprecated because it is no longer maintained.
3.0.0-preview.19074.2 253,246 1/29/2019 3.0.0-preview.19074.2 is deprecated because it is no longer maintained.
3.0.0-preview.18572.1 187,973 12/4/2018 3.0.0-preview.18572.1 is deprecated because it is no longer maintained.
2.2.0 290,738,014 12/3/2018 2.2.0 is deprecated because it is no longer maintained.
2.2.0-preview3-35497 528,340 10/17/2018 2.2.0-preview3-35497 is deprecated because it is no longer maintained.
2.2.0-preview2-35157 335,254 9/12/2018 2.2.0-preview2-35157 is deprecated because it is no longer maintained.
2.2.0-preview1-35029 204,094 8/22/2018 2.2.0-preview1-35029 is deprecated because it is no longer maintained.
2.1.1 439,954,979 6/18/2018
2.1.0 441,075,762 5/29/2018
2.1.0-rc1-final 591,114 5/6/2018 2.1.0-rc1-final is deprecated because it is no longer maintained.
2.1.0-preview2-final 672,147 4/10/2018 2.1.0-preview2-final is deprecated because it is no longer maintained.
2.1.0-preview1-final 659,259 2/26/2018 2.1.0-preview1-final is deprecated because it is no longer maintained.
2.0.2 42,392,541 5/7/2018 2.0.2 is deprecated because it is no longer maintained.
2.0.1 21,657,641 3/13/2018 2.0.1 is deprecated because it is no longer maintained.
2.0.0 391,514,842 8/11/2017 2.0.0 is deprecated because it is no longer maintained.
2.0.0-preview2-final 327,341 6/28/2017 2.0.0-preview2-final is deprecated because it is no longer maintained.
2.0.0-preview1-final 1,159,817 5/10/2017 2.0.0-preview1-final is deprecated because it is no longer maintained.
1.1.2 34,234,275 5/9/2017 1.1.2 is deprecated because it is no longer maintained.
1.1.1 9,966,227 3/6/2017 1.1.1 is deprecated because it is no longer maintained.
1.1.0 6,291,372 11/16/2016 1.1.0 is deprecated because it is no longer maintained.
1.1.0-preview1-final 65,579 10/24/2016 1.1.0-preview1-final is deprecated because it is no longer maintained.
1.0.2 82,739,462 3/6/2017 1.0.2 is deprecated because it is no longer maintained.
1.0.1 3,787,338 12/12/2016 1.0.1 is deprecated because it is no longer maintained.
1.0.0 21,957,793 6/27/2016 1.0.0 is deprecated because it is no longer maintained.
1.0.0-rc2-final 1,845,580 5/16/2016 1.0.0-rc2-final is deprecated because it is no longer maintained.
1.0.0-rc1-final 866,936 11/18/2015 1.0.0-rc1-final is deprecated because it is no longer maintained.