Comparison

ActiveMQ vs NATS

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.
ActiveMQ59
★NATS68
Score
vioscaleAI score
ActiveMQ59 / 100low · 29%
NATS68 / 100medium · 58%
Pricing
Free tier
ActiveMQ✓
NATS✓
Model
Price level
ActiveMQfree
NATSfree
Transparent
ActiveMQ✓
NATS–
Integrations
Count
ActiveMQ–
NATS12
Adoption
Dependent repos
ActiveMQ7,528
NATS24,884
Github stars
ActiveMQ2,465
NATS20,867
Package downloads weekly
ActiveMQ–
Activity
Commits last 30d
ActiveMQ33
NATS100
Release
Cadence days
ActiveMQ4
NATS1
History
ActiveMQ20 items
License
Spdx
Language
Primary
ActiveMQJava
NATSGo
Market
Availability
ActiveMQ–
Content
Faq
ActiveMQ5 items

Capabilities

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

Core
Messaging paradigm
ActiveMQPub/sub
NATSPub/sub
Correctness
Delivery guarantee
ActiveMQ-
NATS-
Ordering guarantee
ActiveMQ-
NATS-
Durability
Durable replayable log
ActiveMQ✓
NATS✓
Message replay / rewind
ActiveMQ-
NATS✓
Interop
Wire protocol
ActiveMQAMQP, STOMP, MQTT, JMS
NATS-
Kafka-protocol compatible
ActiveMQ-
NATS-
Scale
Partitioned horizontal scaling
ActiveMQ✓
NATS✓
Geo / cross-region replication
ActiveMQ-
NATS✓
Consumption
Consumer groups / competing consumers
ActiveMQ✓
NATS✓
Dead-letter queue
ActiveMQ-
NATS-
Deployment
Managed cloud offering exists
ActiveMQ✓
NATS✓
Hosting
ActiveMQCloud + self-hosted
NATSSelf-hosted only
Processing
Built-in stream processing
ActiveMQ✓
NATS-

What each one is

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

ActiveMQ

An open source Java-based system for asynchronous messaging between applications across different platforms. It supports multiple standard communication protocols and offers high availability features through message load-balancing and master-broker configurations.

Independently observed

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

Pricing

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

ActiveMQ

Open sourceFree tier

Open source and free to download and use. Professional support available from commercial vendors.

as of verify ↗

NATS

Leader
Open sourceFree tier
as of verify ↗

Platform & deployment

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

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

Integrations

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

ActiveMQ

Not documented yet.

NATS

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

ActiveMQ or NATS: 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.