Softwr

Databases · head to head

Apache Pulsar vs Directus

Apache Pulsar logo

Apache Pulsar

Databases

Cloud-native messaging and streaming with separated storage

From
Free
Rated
-
Full reviewWebsite
Directus logo

Directus

APIs

Open-source data platform providing REST and GraphQL APIs

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; Directus free permissive use of the self hosted product is limited to organisations under $5M annual revenue with fewer than 50 employees, so crossing either threshold turns a free dependency into a paid licence
  • They diverge on capability: Apache Pulsar covers Separated storage, Directus covers REST API.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

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

Attributes where Apache Pulsar and Directus differ
AttributeApache PulsarDirectus
Pricing modelOpen source, no licence feeopen-source
PlatformsLinux, Docker, Kubernetes, Self-hostedNode.js, Cloud, Self-hosted, Docker
CategoryDatabasesAPIs
FoundedUnknown2014

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 Directus

  • REST API
  • GraphQL API
  • Database management
  • PostgreSQL
  • MySQL
  • SQLite
  • Webhooks
  • Node.js support

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 Directus
  • Multi-tenant messaging where isolation between teams is a requirementnot Directus
  • Deployments where storage and traffic grow at genuinely different ratesnot Directus

Directus

  • Wrapping an existing SQL database in a REST and GraphQL API with an admin interfacenot Apache Pulsar
  • Running a self hosted headless CMS over a schema you already ownnot 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

Directus

  • Free permissive use of the self hosted product is limited to organisations under $5M annual revenue with fewer than 50 employees, so crossing either threshold turns a free dependency into a paid licence
  • The free Core tier is a hard limit of 3 seats, 25 collections and 5 flows
  • The Team plan is $499 a month billed annually, or $599 monthly, with extra seats at $50 each
  • Team caps collections at 50, expandable to 100, and flows at 20

Pricing, plan by plan

Apache Pulsar

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

Directus

Free
  • CommunityFree
    • Self-hosted Directus
    • Community support
  • Cloud$25/monthly
    • Managed cloud
    • Automatic updates
    • Backups

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 Directus if

  • You need rest api.
  • You want to start without paying.
  • You work on Node.js, Cloud, Self-hosted, Docker.
  • You also want graphql api.
Directus review

Questions people ask

Is Apache Pulsar or Directus better?
Neither clearly leads. Apache Pulsar starts at Free and Directus at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Apache Pulsar or Directus?
Apache Pulsar starts at Free and Directus at Free.
Does Apache Pulsar or Directus run on more platforms?
Apache Pulsar runs on Linux, Docker, Kubernetes, Self-hosted. Directus runs on Node.js, Cloud, Self-hosted, Docker.
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 Directus is typically brought in for.
What can Apache Pulsar do that Directus cannot?
Apache Pulsar covers Separated storage, Queuing and streaming, Built-in multi-tenancy, Geo-replication. Directus covers REST API, GraphQL API, Database management, PostgreSQL.

Answered from the vendors’ own pages

Apache Pulsar: Is Apache Pulsar free?

Yes, open source under the Apache Software Foundation.

Directus: What is Directus's pricing?

Directus Core is free and self-hosted. The Team tier costs $499/month (annual) or $599/month (rolling), including 10 user seats and cloud hosting at $99/month additional. Enterprise plans have custom pricing. Additional seats cost $50/month each.

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.

Directus: Can I use Directus for free?

Yes, Directus Core is completely free with 3 user seats, 25 Collections, 5 Flows, AI Assistant, and Advanced RBAC. Self-hosting is available at no cost.

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.

Directus: How many user seats does each Directus tier include?

Core includes 3 user seats, Team includes 10 SSO seats, and Enterprise includes custom SSO seat counts. Additional Team seats cost $50/seat per month.

Source
Directus: What happens to my monthly Directus plan if I switch?

Monthly plans are grandfathered for six months after switching, and annual plans are honored until renewal. Self-hosted licenses are handled case-by-case at renewal.

Source
Directus: Is there a free trial for Directus?

No trial period is mentioned. Users can start with the free Core tier immediately without a credit card.

Source
Share

Related pages

More on Apache Pulsar

More on Directus

Keep looking

Other head to heads