Beanstalkd
Resque
Iron.io
Sidekiq
RabbitMQ
Hangfire
NServiceBus
PHP-FPM
@imqueue
Anypoint MQ
NSQ
BeanstalkdResque - Resque is a Redis-backed Ruby library for creating background jobs, placing them on multiple queues, and processing them later.
Anypoint MQ - With Anypoint MQ, perform advanced asynchronous messaging scenarios โ such as queueing and pub/sub โ with hosted and managed cloud message queues and exchanges.
Iron.io - Iron.io is the leader in cloud application services. IronMQ is a highly available message queue solution and IronWorker is a powerful async task processing service.
NSQ - A realtime distributed messaging platform.
Sidekiq - Sidekiq is a simple, efficient framework for background job processing in Ruby
RabbitMQ - RabbitMQ is an open source message broker software.