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What's the Difference Between Amazon EventBridge and Amazon SQS?

Compare Amazon EventBridge and Amazon SQS side by side — features, pricing, and ideal use cases to help you choose the right product.

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Comparisons
Amazon EventBridge
Amazon SQS
Category

Application Integration, Event bus

Application Integration, Messaging queues
Description

Builds event-driven apps at scale across AWS, SaaS or existing systems

Managed message queues
Best for
  • Event-driven architectures
  • SaaS integration
  • Application integration
  • Audit & monitoring
  • Microservices decoupling
  • Work queues
  • Batch processing
  • Event buffering
Key features
  • Event buses
  • Schema registry
  • Event replay
  • Pipes
  • Scheduler
  • Standard & FIFO queues
  • Dead-letter queues
  • Server-side encryption
  • Long polling
  • Message timers
Pricing model

Pay per event published

Pay per million requests
Free tier

Yes

Yes
Expert take

“EventBridge is the evolution of CloudWatch Events with richer filtering, schema discovery, and SaaS integration. Use it when you need content-based routing (filter on event fields) or need to connect to third-party SaaS sources. For simple queue-based decoupling, SQS is lighter weight.”
— Didier Durand, re:Post Top Contributor [profile]

“Standard queues give you nearly unlimited throughput with at-least-once delivery. FIFO queues guarantee exactly-once processing and strict ordering but cap at 3,000 messages/second with batching. Pick Standard for throughput, FIFO for correctness.”
— Riku Kobayashi, re:Post Top Contributor [profile]
Product page

Learn more about Amazon EventBridge »

Learn more about Amazon SQS »

When to use Amazon EventBridge or Amazon SQS

Use Amazon EventBridge when:

  • Event-driven architectures
  • SaaS integration
  • Application integration
  • Audit & monitoring

Learn more about Amazon EventBridge »

Use Amazon SQS when:

  • Microservices decoupling
  • Work queues
  • Batch processing
  • Event buffering

Learn more about Amazon SQS »

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