Spooled is a high-performance, multi-tenant job queue system designed for reliability, observability, and horizontal scalability.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Self-Hosted
- Docker

Resque is described as 'Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later' and is an app. There are five alternatives to Resque for a variety of platforms, including Mac, Windows, Linux, Self-Hosted and Ruby apps. The best Resque alternative is Spooled Cloud, which is both free and Open Source. Other great apps like Resque are Celery: Distributed Task Queue, sidekiq, Delayed::Job and Hangfire.
Spooled is a high-performance, multi-tenant job queue system designed for reliability, observability, and horizontal scalability.

Celery is an asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well.
Simple, efficient background processing for Ruby. Sidekiq uses threads to handle many jobs at the same time in the same process. It does not require Rails but will integrate tightly with Rails to make background processing dead simple.

Database based asynchronous priority queue system -- Extracted from Shopify - collectiveidea/delayed_job