Extensions for System.Net.Http (especially HttpClient). Provides convenient methods like GetVerified, PostVerified, PostAsJsonVerified and more which take care of error handling for you. Also supports RFC 7807 (Problem Details).
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A tool for informative exception handling for sitecore solutions per rendering basis. Documentation, explanation and screenshots are here http://vladimirhil.com/2015/11/15/sitecore-rendering-exceptions-handling. The source code is here: https://github.com/vhil/Helpfulcore
Common .net (C#) code library for dow windows development team. This component wrap the exception handling. Developer can use the interface: ExceptionManager. The component is base on .net 4.5 and log4net.
This library is an analyzer and code fix provider based on Roslyn that allows developers to inform others of the exceptions which their methods can throw.
Package allows to easily configure exception handling in the application. Configuration is done in Startup.cs class using extension methods from IApplicationBuilder