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Databases · head to head

NATS vs Pulumi

NATS logo

NATS

Databases

High-performance messaging system for cloud-native applications

From
Free
Rated
-
Full reviewWebsite
Pulumi logo

Pulumi

Cloud

Modern infrastructure as code using programming languages

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: NATS core NATS has no persistence at all, so messages are lost if no subscriber is listening; Pulumi the free Individual plan allows one user and one concurrent stack update
  • They diverge on capability: NATS covers Very low latency, Pulumi covers Multi-language support.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which NATS and Pulumi actually diverge.

Attributes where NATS and Pulumi differ
AttributeNATSPulumi
Pricing modelOpen source, no licence feesubscription
PlatformsLinux, macOS, Windows, Docker, KubernetesLinux, Windows, Mac, Api
CategoryDatabasesCloud
FoundedUnknown2017

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 NATS

  • Very low latency
  • JetStream
  • Single binary
  • Request-reply

Only in Pulumi

  • Multi-language support
  • Multi-cloud
  • State management
  • Secrets management
  • RBAC
  • Stacks
  • Automation API
  • Policy as Code

What people use each for

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

NATS

  • Service-to-service messaging where latency is the binding constraintnot Pulumi
  • Edge and IoT messaging where a lightweight broker mattersnot Pulumi
  • Replacing a heavier broker when the workload does not need its guaranteesnot Pulumi

Pulumi

  • Infrastructure as codenot NATS
  • Cloud resource provisioningnot NATS
  • DevOps automationnot NATS
  • Multi-cloud managementnot NATS

Where each one falls short

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

NATS

  • Core NATS has no persistence at all, so messages are lost if no subscriber is listening
  • JetStream adds the durability but also the operational complexity NATS is chosen to avoid
  • A much smaller ecosystem than Kafka or RabbitMQ, with fewer connectors and integrations
  • Fewer people know it, so hiring and existing organisational knowledge favour the alternatives

Pulumi

  • The free Individual plan allows one user and one concurrent stack update
  • The Team plan is $40 per month base including 40 credits, and caps the organisation at 10 users
  • SAML/SSO, RBAC, audit logs and drift detection require the Enterprise plan at $400 per month base
  • The per-resource rate rises from $0.1825 per resource per month on Team to $0.365 on Enterprise, so upgrading raises the unit price as well as the base fee
  • Managed secrets are billed separately at $0.50 per secret per month on Team and $0.75 on Enterprise
  • Self-hosting, SCIM user sync, audit log export and 24x7 support are only in Business Critical, which is custom priced with no published rate
  • Team includes up to 500 resources and Enterprise up to 2,000, with everything beyond billed on demand as credits

Pricing, plan by plan

NATS

Free
  • NATSFree
    • Full functionality
    • No usage limits
    • Community support

Pulumi

Free
  • IndividualFree
    • 1 user
    • Unlimited projects/stacks
    • 500 workflow minutes monthly
  • Team$40/month
    • Up to 10 users
    • Secure collaboration
    • CI/CD integration
  • Enterprise$400/month
    • Unlimited users
    • SAML/SSO
    • RBAC
  • Business Critical$null/custom
    • Self-hosting
    • Advanced compliance
    • SCIM integration

Which should you pick?

Choose NATS if

  • You need very low latency.
  • You want to start without paying.
  • You work on Linux, macOS, Windows, Docker, Kubernetes.
  • You also want jetstream.
NATS review

Choose Pulumi if

  • You need multi-language support.
  • You want to start without paying.
  • You work on Linux, Windows, Mac, Api.
  • You also want multi-cloud.
Pulumi review

Questions people ask

Is NATS or Pulumi better?
Neither clearly leads. NATS starts at Free and Pulumi at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, NATS or Pulumi?
NATS starts at Free and Pulumi at Free.
Does NATS or Pulumi run on more platforms?
NATS runs on Linux, macOS, Windows, Docker, Kubernetes. Pulumi runs on Linux, Windows, Mac, Api.
Can I use NATS for free?
Both have a free tier, so you can try either at no cost before committing.
What is NATS best used for?
NATS is most often used for service-to-service messaging where latency is the binding constraint, edge and iot messaging where a lightweight broker matters, replacing a heavier broker when the workload does not need its guarantees. Of those, service-to-service messaging where latency is the binding constraint and edge and iot messaging where a lightweight broker matters are not what Pulumi is typically brought in for.
What can NATS do that Pulumi cannot?
NATS covers Very low latency, JetStream, Single binary, Request-reply. Pulumi covers Multi-language support, Multi-cloud, State management, Secrets management.

Answered from the vendors’ own pages

NATS: Is NATS free?

Yes, open source and CNCF-graduated. Synadia sells a managed service.

Pulumi: How much does Pulumi cost?

Pulumi offers a free Individual tier forever, Team plan at $40/month with 40 credits, and Enterprise at $400/month with 400 credits. Credit usage varies by resource type and workflow needs.

Source
NATS: Does NATS persist messages?

Core NATS does not — it is fire-and-forget. JetStream adds persistence, streaming and replay when you need them.

Pulumi: What is included in the Pulumi free tier?

The free Individual tier includes 1 user, unlimited projects/stacks, 500 workflow minutes monthly, and 5 million Neo tokens free.

Source
NATS: NATS or Kafka?

NATS is far lighter and lower latency, and much simpler to run. Kafka is the answer when you need a durable replayable log and a large connector ecosystem.

Pulumi: How are Pulumi credits charged?

1 Pulumi Credit equals $1 USD. Credits are drawn from a shared pool. IaC resources cost $0.1825/month per resource on Team and $0.365 on Enterprise; ESC secrets cost $0.50-$0.75/month; workflow minutes cost $0.01 each.

Source
Pulumi: Does Pulumi offer volume discounts?

Yes, the Enterprise tier ($400/month) includes volume discounts and is designed for approximately 2,000 IaC resources.

Source
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