Top 20 NuGet background Packages

Core components for Hangfire (background job system for ASP.NET applications).
An easy and reliable way to perform fire-and-forget, delayed and recurring long-running, short-running, CPU or I/O intensive tasks inside ASP.NET application. No Windows Service / Task Scheduler required. Even ASP.NET is not required. Backed by Redis, SQL Server, SQL Azure or MSMQ. This is a ....
MongoDB storage implementation for Hangfire (background job system for ASP.NET applications).
Cross platform Xamarin plugin to play Media from PCL. Supports audio and video playback on Android, iOS, UWP, tvOS and Mac.
Automated job scheduler with fluent interface.
Task scheduling for .NET: Azure Service Bus
Task scheduling for .NET
CrossDownloadManager is a cross-platform library for downloading files in the background.
Core components for Hangfire (background job system for ASP.NET Core applications).
Cordova Plugin Background Mode (cordova-plugin-background-mode) binding library for Bridge.NET projects.
PostageApp API client library for .NET Standard
Jobber is lightweight, simple and distributed task scheduler.
Support for bindings in Xamarin Forms
A fork of Hangfire's recurring background job processing (to add date ranges, and additional cron support
A scheduled background worker for reactive.pipes. Allows scheduling long-running tasks in the background.
Allows activity to be batched together in the background