Top 20 NuGet app.config Packages

An easy way to read custom configuration
app.config XML configuration poker
Can be used to automatically replace some tags in app.config file with developer-specific tags during pre-build event. Click on project link to watch video. For web.config search for WebConfigOverwritter NuGet.
Can be used to automatically replace some tags in web.config file with developer-specific tags during pre-build event. Click on project link to watch video. For app.config search for AppConfigOverwritter NuGet.
To make getting data from the web.config's appSettings section easier
Proteus.Utility.Configuration is a library that abstracts reading config values from e.g., app.config/web.config and supports their being overridden by ENVIRONMENT VARIABLES and/or a local.settings.json files.
ASP.NET 5 configuration provider for System.Configuration.ConfigurationManager compatibility. Changed name to GV.AspNet.Configuration.Contrib.ConfigurationManager, please use the package at https://www.nuget.org/packages/GV.AspNet.Configuration.Contrib.ConfigurationManager/ instead.
ASP.NET 5 configuration provider for System.Configuration.ConfigurationManager compatibility.
It is easier to use configuration in .Net/在.Net中更加容易的使用配置文件。
SolucionesEnLinea.com Database Access Framework based on Reflection and ADO.NET. Sel.Configuration provides access to configuration information provider (default for .net is app.config/web.config file).
Provide a configuration section for a schedule.
Package Description
Provide a class to execute on schedule.
Collection of classes to help retrieve settings from App.config files in .NET.
Allows you to work with complex configuration structures in your app.config or web.config files. Doing it the classic way with System.Configuration is difficult and error prone. JJ.Framework.Configuration makes it super easy.
Reading and writing .net application settings.
Extension methods for XML and JSON Application Configuration File that allow retrieval of string setting values as typed values.
Configuration provider for IConfigurationBuilder that adds the config from the old web.config/app.config legacy configurations.