Kafka vs RabbitMQ vs AWS SQS — Which Message Queue for UK Software? (2025)
AWS SQS is the right default for most UK software projects: managed service (Cyber Essentials patching handled by AWS), simple queue semantics, pay-per-use pricing, and native AWS integration. Use AWS MSK (managed Kafka) only when you genuinely need event streaming at scale (1M+ events/day, multiple consumers, event replay). Use RabbitMQ when you need complex routing (topic exchanges, dead letter queues) and are not on AWS. Message queue choice affects UK Cyber Essentials patching obligations, UK GDPR event data handling, and operational complexity. Here is an honest comparison.
| Factor | AWS SQS | Apache Kafka (MSK) | RabbitMQ |
|---|---|---|---|
| Cyber Essentials (managed) | ✅ AWS managed — patching handled | AWS MSK managed — patching handled | Self-hosted — you manage patching |
| UK GDPR data residency | ✅ eu-west-2 — confirmed | ✅ AWS MSK eu-west-2 | Self-hosted on AWS eu-west-2 — ✅ |
| Operational complexity | ✅ Zero — fully managed SaaS | Medium — MSK, schema registry | High — cluster management, plugins |
| Event replay / audit trail | No — messages deleted after processing | ✅ Log compaction — event replay | No — messages deleted after ack |
| High throughput (1M+ msg/day) | Good (batch processing) | ✅ Best — designed for this | Good (but operational cost) |
| Complex routing (topic/fanout) | Limited — FIFO and standard queues | Topics + consumer groups | ✅ Exchanges, bindings, routing keys |
| NHS DSP Toolkit audit events | Good — dead letter queue for failures | ✅ Event replay for audit | Good |
| Cost at scale | ✅ Pay per message — cheap for low volume | MSK cluster cost — more expensive | Self-hosted infrastructure cost |
| ClickMasters default | ✅ Most UK microservice projects | High-throughput event streaming | Not on AWS, complex routing needed |
Book a Free Consultation Honest advice. → clickmasterssoftwaredevelopmentcompany.co.uk/contact/
More Technology Comparisons
Kafka vs RabbitMQ vs AWS SQS -- UK Event Streaming (2026)
AWS SQS (+ SNS) is ClickMasters default for most UK regulated applications: native AWS integration (
UK vs Offshore Software Development — The Honest Analysis (2025)
Honest comparison of UK vs offshore software development. True total cost, GDPR risk, IP protection,
AWS vs Azure for UK Businesses — Data Residency, NHS, GovTech & Cost (2025)
AWS eu-west-2 vs Azure UK South for UK businesses. UK GDPR data residency, NHS/Gov preference, prici
Nearshore vs Offshore vs UK Software Development — Honest Three-Way Comparison (2025)
Nearshore (Eastern Europe) vs offshore (India/Asia) vs UK software development. Total cost, GDPR com
Get Unbiased Technology Advice
Our architects are certified across all major platforms. We recommend what's actually right for your business — no commission, no bias.
Book Free Consultation