It's a product for handling background jobs, typically generated from web applications. It's similar in function to resque, delayed job, etc. Rails is bringing

It's a product for handling background jobs, typically generated from web applications. It's similar in function to resque, delayed job, etc. Rails is bringing native background job support to Rails 4.2 in the form of Active Job[1], so these background job runners will become even more popular I imagine. Sidekiq itself provides a service/daemon (well, the processing part of it), it does not provide the ability to implement your own service/daemon. [1] http://edgeguides.rubyonrails.org/active_job_basics.html http://edgeguides.rubyonrails.org/active_job_basics.html