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Amazon SQS alternatives: Azure, Google Cloud and open source

A queue is how a fast part of a system stops flooding a slow one.

Most production worries in AI systems are queue problems: bursts, retries and work that piles up.

  • From my own projects
  • Sources linked
  • Updated September 2026

The same job on four platforms

The same task, a different bill and a different console. The layer does not change.

AWS

Amazon SQS[1]

A queue is how a fast part of a system stops flooding a slow one.

AWS documentation →[2]

Microsoft Azure

Azure Service Bus[3]

Official documentation →

Azure Queue Storage (simple version)[4]

Official documentation →

Google Cloud

Pub/Sub[5]

Official documentation →

Open source / run it yourself

RabbitMQ[6]

The widely used open-source message broker, MPL 2.0.

Redis (simple version)[7]

Lists and streams work as a simple queue. Redis 8 is available under AGPLv3, among other licences.

What Amazon SQS does

You sendA message, put on a queue
Amazon SQS

A queue is how a fast part of a system stops flooding a slow one.

You get backThat message, delivered to whoever asks for it next
What it costsPer million requests. The cheapest service on this list.
Who operates itAWS keeps the messages and the ordering guarantees.
When it is the wrong choiceWhen you need every consumer to see every message. That is a topic, not a queue.

AWS calls it: “Fully managed message queuing for microservices, distributed systems, and serverless applications”[1]

How I use it

Buffering work between pipeline steps. It is also my answer to agent sprawl: a queue is a boundary you can measure.

AI use cases on AWS →All AWS services in my projects →
Linda Mohamed

Linda Mohamed, AI and cloud consultant and AWS Community Hero in Vienna. I build these pipelines for clients and teach them at FH Burgenland.

Read more on ai-solutions.wiki

My open knowledge base, with longer comparisons and more sources.

Questions

What is the Azure equivalent of Amazon SQS?

Azure Service Bus; Azure Queue Storage (simple version).

What is the Google Cloud equivalent of Amazon SQS?

Pub/Sub.

What is the open-source alternative to Amazon SQS?

RabbitMQ: The widely used open-source message broker, MPL 2.0. Redis (simple version): Lists and streams work as a simple queue. Redis 8 is available under AGPLv3, among other licences.

How is Amazon SQS billed?

Per million requests. The cheapest service on this list.

When should you not use Amazon SQS?

When you need every consumer to see every message. That is a topic, not a queue.

Sources

  1. Amazon SQS product page. https://aws.amazon.com/sqs/
  2. Amazon SQS documentation. https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/welcome.html
  3. Azure Service Bus documentation. https://learn.microsoft.com/en-us/azure/service-bus-messaging/service-bus-messaging-overview
  4. Azure Queue Storage (simple version) documentation. https://learn.microsoft.com/en-us/azure/storage/queues/storage-queues-introduction
  5. Pub/Sub documentation. https://cloud.google.com/pubsub/docs
  6. RabbitMQ. https://www.rabbitmq.com/
  7. Redis (simple version). https://redis.io/
  8. Apache Kafka: Distributed Event Streaming Platform, ai-solutions.wiki. https://ai-solutions.wiki/tools/apache-kafka/
  9. Microservices vs Monolith for AI Applications, ai-solutions.wiki. https://ai-solutions.wiki/comparisons/microservices-vs-monolith-ai/
  10. Linda Mohamed, course slides “The projects”, MASE-3, FH Burgenland, September 2026.

Links checked September 2026. Product names and availability change: check the linked pages before you decide.

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