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Message Brokers Comparison

 TimeBaseKafkaRabbitMQPulsarActiveMQGoogle Cloud Pub/SubAmazon KinesisAzure Service Bus
Clustering
No Vendor
Lock-In
Cloud Ready
Stable Sub-ms Latency
Schemaful
Administration
Complexity		 medium high medium high high low (SaaS) low (SaaS) low (SaaS)
Supported Languages Java
Python
C++
.NET		 C++
Go
Java
.NET
Python
Scala
and more		 Java
.NET
C++
Ruby
Python
PHP
JavaScript
Scala
and more		 Java
Go
Python
C++		 Java
Go
C++
Python
and more		 Java
Go
Python
Ruby
Node.js
.NET
PHP		 Java
.NET
Python
Ruby
Node.js		 .NET
Java
Order Guarantee
Delivery Guarantee at-least-once at-least-once,
at-most-once,
exactly-once		 at-least-once,
at-most-once		 at-least-once,
at-most-once,
exactly-once		 at-most-once,
exactly-once		 at-least-once at-least-once at-least-once,
at-most-once
Licensing Open Source/
Commercial		 Open Source Open Source Open Source Open Source Commercial Commercial Commercial
TCO $ $$$ $$$ $$$ $$$ $$ $$ $$