Celery: Distributed Task Queue Alternatives

RabbitMQ is a complete and highly reliable enterprise messaging system based on the emerging AMQP standard

Apache Pulsar is a distributed, open source pub-sub messaging and streaming platform for real-time workloads, managing hundreds of billions of events per day.

Zenaton is a developer tool and hosted workflow engine for writing, running and monitoring all of your background processes whether it is a single task or a long running workflow. It allows developers to easily integrate third party services and APIs iby triggering tasks and...

ØMQ is a high-performance asynchronous messaging library aimed at use in scalable distributed or concurrent applications. It provides a message queue, but unlike message-oriented middleware, a ØMQ system can run without a dedicated message broker.

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

Dedicated platform to send and receive messages within your applications. It has simple REST API and clean web UI. It allows to control access to your queues with managed access tokens.

Zeplo lets developers add retry, delay, queue and schedule to HTTP endpoints without setting up Redis, RabbitMQ or SQS. Just prefix any HTTP endpoint with zeplo.to/ and the request is queued.

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

cTRL is a server for remote execution of pending tasks and commands in real time, supporting a queue with continuous thread limiting and throttling.

Dramatiq is a fast and reliable distributed task processing library for Python 3. If you've ever had to use Celery in anger, you'll love Dramatiq.

An easy way to perform background processing in .NET and .NET Core applications. No Windows Service or separate process required. Backed by persistent storage. Open and free for commercial use.