Comparison

NATS vs ZeroMQ

On the evidence we track, NATS leads this comparison with a composite score of 68/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★NATS68
ZeroMQ49
Score
vioscaleAI score
NATS68 / 100medium · 58%
ZeroMQ49 / 100medium · 58%
Pricing
Free tier
NATS✓
ZeroMQ✓
Model
Price level
NATSfree
ZeroMQfree
Transparent
NATS–
ZeroMQ✓
Integrations
Count
NATS12
ZeroMQ11
Adoption
Dependent repos
NATS24,884
ZeroMQ2,003
Github stars
NATS20,867
ZeroMQ11,016
Package downloads weekly
Activity
Commits last 30d
NATS100
ZeroMQ0
Release
Cadence days
NATS1
ZeroMQ114
History
License
Spdx
Language
Primary
NATSGo
ZeroMQC++
Market
Availability
ZeroMQ–
Content
Faq
ZeroMQ6 items

Capabilities

Feature-by-feature on the axes that matter for message queues. “-” means undocumented, not absent.

Core
Messaging paradigm
NATSPub/sub
ZeroMQPub/sub
Correctness
Delivery guarantee
NATS-
ZeroMQ-
Ordering guarantee
NATS-
ZeroMQ-
Durability
Durable replayable log
NATS✓
ZeroMQ-
Message replay / rewind
NATS✓
ZeroMQ-
Interop
Wire protocol
NATS-
ZeroMQZMTP/3.1
Kafka-protocol compatible
NATS-
ZeroMQ-
Scale
Partitioned horizontal scaling
NATS✓
ZeroMQ✓
Geo / cross-region replication
NATS✓
ZeroMQ-
Consumption
Consumer groups / competing consumers
NATS✓
ZeroMQ-
Dead-letter queue
NATS-
ZeroMQ-
Deployment
Managed cloud offering exists
NATS✓
ZeroMQ✗
Hosting
NATSSelf-hosted only
ZeroMQSelf-hosted only
Processing
Built-in stream processing
NATS-
ZeroMQ-

What each one is

The product in its own terms, so the numbers below have context.

NATS

Leader

An open-source, lightweight messaging platform that combines pub/sub, request/reply, and persistent streaming capabilities into a single system for building high-performance distributed applications.

Independently observed

ZeroMQ

Enables programs to exchange information through sockets across multiple protocols and network types, with built-in support for various communication patterns such as broadcast, queue-based delivery, and request-response architectures

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

NATS

Leader
Open sourceFree tier
as of verify ↗

ZeroMQ

Open source
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
NATS✓
ZeroMQ✗
Android
NATS✗
ZeroMQ✓
Windows
NATS✗
ZeroMQ✓
Linux
NATS✗
ZeroMQ✓
CLI
NATS✓
ZeroMQ✗
Deployment
Cloud / SaaS
NATS✓
ZeroMQ✗
Self-hosted
NATS✓
ZeroMQ✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

NATS

Leader
12 total
  • Stripe
  • Apache Kafka
  • Apache Spark
  • Apache Flink
  • RabbitMQ
  • Prometheus
  • RisingWave
  • Caddy
  • Deepstream
  • Synadia
  • Gatling
  • Yii
Independently observed

ZeroMQ

11 total
  • Microsoft
  • Samsung
  • AT&T
  • Spotify
  • Facebook
  • Digital Ocean
  • Auth0
  • Bitcoin
  • Jupyter
  • Mongrel2
  • Jina
Independently observed
Still deciding?

NATS or ZeroMQ: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.