Apache Pulsar vs Google Cloud Managed Service for Apache Kafka

Apache Pulsar6.9Visit Google Cloud Managed Service for Apache Kafka6.9Visit

Apache Pulsar #7 in Event Streaming Platforms 6.9/10 Free plan Free plan✓ 2 of 2 features Visit Apache Pulsar

vs

Google Cloud Managed Service for Apache Kafka #8 in Event Streaming Platforms 6.9/10 From $0.09 ✓ 2 of 2 features Visit Google Cloud

• Apache Pulsar fits best

  Teams needing open-source multi-tenant streaming

• Google Cloud Managed Service for Apache Kafka fits best

  Google Cloud teams wanting managed Kafka

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature	Apache Pulsar 6.9/10 Visit ↗	Google Cloud Managed Service for Apache Kafka 6.9/10 Visit ↗
At a glance
Editor score	6.9	6.9
Ranking	#7 in Event Streaming Platforms	#8 in Event Streaming Platforms
Best for	Teams needing open-source multi-tenant streaming	Google Cloud teams wanting managed Kafka
Pricing model	Free	Paid
Starting price	Not published	Not published
Free plan	✓ (best)	—
Free trial	—	—
Deployment	Self-hosted	Cloud
Platforms	Windows, macOS, Linux	Web
Support	Community, Docs	Docs
Integrations	3 integrations	5 integrations
Built for	Small business, Mid-market, Enterprise	Mid-market, Enterprise
Features Apache Pulsar 2/2 · Google Cloud Managed Service for Apache Kafka 2/2
Stream processing	✓	✓
Schema registry	✓	✓
Specs
Deployment model	Self-hosted	Cloud
Maximum retention	Not published	Not published
Delivery guarantee	Both	Exactly-once
Connectors listed	Not published	5 connectors
Supported client languages	Java, Go, Python, C++, C#/.NET, Node.js, WebSocket	Java, Python, Go
Our review
Pros	Persistent storage, transactions, schemas, and multiple subscription types Multi-tenancy, access control, and geo-replication across clusters Clients, connectors, and deployment options across major environments	Automatic partition rebalancing when clusters scale Integrated Avro and Protobuf schema registry IAM, VPC, and customer-managed encryption key integration
Cons	Self-hosted deployment places infrastructure management on the team Its broad feature set may exceed the needs of simple streaming projects AI features are not included	No free plan Usage-based pricing varies by region and resource consumption Five built-in connector plugins are listed
Our verdict	Apache Pulsar is an open-source messaging and streaming platform for server-to-server communication and event-driven applications. It is designed for organizations ranging from small companies to large enterprises, particularly teams that… Read the review →	Google Cloud Managed Service for Apache Kafka runs managed, highly available Apache Kafka clusters for developers, data engineers, architects, and organizations moving existing Kafka workloads to Google Cloud. It handles cluster… Read the review →

Strengths and trade-offs

• Apache Pulsar — where it wins

  • Persistent storage, transactions, schemas, and multiple subscription types
  • Multi-tenancy, access control, and geo-replication across clusters
  • Clients, connectors, and deployment options across major environments

  Where it doesn't

  • Self-hosted deployment places infrastructure management on the team
  • Its broad feature set may exceed the needs of simple streaming projects
  • AI features are not included

• Google Cloud Managed Service for Apache Kafka — where it wins

  • Automatic partition rebalancing when clusters scale
  • Integrated Avro and Protobuf schema registry
  • IAM, VPC, and customer-managed encryption key integration

  Where it doesn't

  • No free plan
  • Usage-based pricing varies by region and resource consumption
  • Five built-in connector plugins are listed

• Apache Pulsar6.9/10 · Free plan

  Open-source streaming with multi-tenancy, replication, storage, and processing built in.

  Visit Apache PulsarFull verdict →
• Google Cloud Managed Service for Apache Kafka6.9/10 · From $0.09

  A managed Kafka service with Google Cloud controls, APIs, and integrated streaming tools.

  Visit Google CloudFull verdict →