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Databases · head to head

Apache Pulsar vs n8n

Apache Pulsar logo

Apache Pulsar

Databases

Cloud-native messaging and streaming with separated storage

From
Free
Rated
-
Full reviewWebsite
n8n logo

n8n

Automation Integration

The fair-code workflow automation tool

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Apache Pulsar more components than Kafka: brokers, BookKeeper and ZooKeeper each need operating; n8n starter tier limited to 1 project and 5 concurrent executions
  • They diverge on capability: Apache Pulsar covers Separated storage, n8n covers Workflow automation.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Apache Pulsar and n8n actually diverge.

Attributes where Apache Pulsar and n8n differ
AttributeApache Pulsarn8n
Pricing modelOpen source, no licence feesubscription
PlatformsLinux, Docker, Kubernetes, Self-hostedWeb, Docker, Self-hosted
CategoryDatabasesAutomation Integration
FoundedUnknown2019

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Apache Pulsar

  • Separated storage
  • Queuing and streaming
  • Built-in multi-tenancy
  • Geo-replication

Only in n8n

  • Workflow automation
  • Visual editor
  • Conditional execution
  • Looping
  • Error handling
  • Scheduling
  • Webhooks
  • REST API

What people use each for

The jobs each tool is most often brought in to do.

Apache Pulsar

  • Platforms needing both work queues and replayable streams without running two systemsnot n8n
  • Multi-tenant messaging where isolation between teams is a requirementnot n8n
  • Deployments where storage and traffic grow at genuinely different ratesnot n8n

n8n

  • Building AI agents and workflow automation for technical teamsnot Apache Pulsar
  • Visual workflow design with capability to write custom JavaScript or Python codenot Apache Pulsar
  • Enterprise deployments with self-hosted or cloud optionsnot Apache Pulsar
  • Integrating 500+ pre-built applications with custom API connectionsnot Apache Pulsar

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Apache Pulsar

  • More components than Kafka: brokers, BookKeeper and ZooKeeper each need operating
  • Correspondingly harder to run well, and the expertise is rarer than Kafka expertise
  • A much smaller ecosystem of connectors, tooling and hiring pool than Kafka
  • The architectural advantages only pay off at a scale most deployments never reach

n8n

  • Starter tier limited to 1 project and 5 concurrent executions
  • Starter and Pro tiers restricted to Cloud hosting only, not self-hosted
  • Business tier requires 6 months minimum commitment at €667/month
  • SSO/SAML/LDAP authentication requires Business or Enterprise tier
  • Dedicated support with SLA available only on Enterprise plan

Pricing, plan by plan

Apache Pulsar

Free
  • Apache PulsarFree
    • Full functionality
    • No usage limits
    • Community support

n8n

Free
  • CommunityFree
    • Free self-hosted version on GitHub
    • Open source
  • Starter$20/month
    • 2,500 workflow executions
    • 5 concurrent executions
    • 2,300 AI credits/month
  • Pro$50/month
    • 10,000 workflow executions
    • 20 concurrent executions
    • 13,700 AI credits/month
  • Business$667/month
    • 40,000 workflow executions
    • Self-hosted option
    • 6 shared projects

Which should you pick?

Choose Apache Pulsar if

  • You need separated storage.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want queuing and streaming.
Apache Pulsar review

Choose n8n if

  • You need workflow automation.
  • You want to start without paying.
  • You work on Web, Docker, Self-hosted.
  • You also want visual editor.
n8n review

Questions people ask

Is Apache Pulsar or n8n better?
Neither clearly leads. Apache Pulsar starts at Free and n8n at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Apache Pulsar or n8n?
Apache Pulsar starts at Free and n8n at Free.
Does Apache Pulsar or n8n run on more platforms?
Apache Pulsar runs on Linux, Docker, Kubernetes, Self-hosted. n8n runs on Web, Docker, Self-hosted.
Can I use Apache Pulsar for free?
Both have a free tier, so you can try either at no cost before committing.
What is Apache Pulsar best used for?
Apache Pulsar is most often used for platforms needing both work queues and replayable streams without running two systems, multi-tenant messaging where isolation between teams is a requirement, deployments where storage and traffic grow at genuinely different rates. Of those, platforms needing both work queues and replayable streams without running two systems and multi-tenant messaging where isolation between teams is a requirement are not what n8n is typically brought in for.
What can Apache Pulsar do that n8n cannot?
Apache Pulsar covers Separated storage, Queuing and streaming, Built-in multi-tenancy, Geo-replication. n8n covers Workflow automation, Visual editor, Conditional execution, Looping.

Answered from the vendors’ own pages

Apache Pulsar: Is Apache Pulsar free?

Yes, open source under the Apache Software Foundation.

n8n: Is there a free version of n8n?

Yes, n8n Community Edition is free and open-source, available for self-hosting on GitHub with unlimited users and workflows.

Source
Apache Pulsar: Pulsar or Kafka?

Pulsar separates storage from compute and covers queuing and streaming in one system. Kafka has a far larger ecosystem and hiring pool. Most teams should have a specific reason before choosing Pulsar.

n8n: What is the difference between n8n plans?

Plans differ by monthly workflow executions (2,500 for Starter, 10,000 for Pro, 40,000 for Business), concurrent execution limits, AI credits, and shared project counts.

Source
Apache Pulsar: Why does separated storage matter?

Brokers hold no data, so adding or replacing one requires no rebalancing, and storage can grow without adding serving capacity.

n8n: Does n8n offer annual billing discounts?

Yes, n8n offers 17% off when billing annually instead of monthly, and provides a Startup Plan at 50% off Business pricing for companies under 20 employees.

Source
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