JobRunr

Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later.

Celery is a distributed task queue system for Python that handles asynchronous job processing, scheduling, and message passing, often used with web frameworks like Django.

Quartz is a job scheduling library for .NET applications that allows developers to create and manage scheduled tasks and background jobs.

Sidekiq is a background job processing framework for Ruby applications, using Redis to queue and execute jobs asynchronously.

HangFire is an open-source background job processing library for .NET applications that helps perform fire-and-forget, delayed, and recurring tasks.

Delayed Job is a database-backed asynchronous job queue system for Ruby on Rails applications, allowing background processing of long-running tasks.