Delayed Job review
A focused choice for database-backed asynchronous jobs in Ruby and Rails applications.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Delayed Job is an open-source Ruby library for running longer-running tasks asynchronously in background workers. It stores jobs in a database and is aimed at Ruby and Rails applications that want application-managed background processing. Its core model suits teams that prefer to keep queue storage within their application database and need practical controls for ordering, scheduling, retries, and worker execution.
The feature set covers the fundamentals of a database-backed task queue. Jobs can be ordered by priority, assigned to named queues, scheduled for a future time, retried with configurable attempts, and rescheduled when processing does not complete as intended. Multiple worker processes support concurrent processing, while Rails Active Job integration connects the queue to a familiar Rails job interface. Active Record and Mongoid backend integrations extend the storage options documented for the project.
Delayed Job is a sensible fit when a Ruby or Rails application needs straightforward background work without adopting a hosted queue service. Its self-hosted deployment model keeps the system close to the application, but also makes it a better match for teams comfortable managing their own application infrastructure. Choose it for core asynchronous jobs, scheduled work, priorities, named queues, and configurable retries. Teams seeking a broader operational platform or a queue product designed for environments beyond Ruby and Rails should consider an alternative with a wider ecosystem and service model.
Delayed Job pros and cons
- Where it wins
- Database-backed storage with priority ordering and named queues
- Scheduling, retries, rescheduling, and multiple worker processes
- Rails Active Job, Active Record, and Mongoid integrations
- Where it doesn't
- Self-hosted deployment requires application-managed operations
- Focused on Ruby and Rails application environments
- Does not provide broader hosted queue-service capabilities
Delayed Job fact sheet, pricing and score →
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update