Available worldwide
What is NATS?
NATS is a high-performance, lightweight, open-source messaging system that unifies messaging, streaming, and state into one real-time system for building distributed systems across any cloud or edge environment.
NATS pricing
We don't have NATS's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What NATS does
The capabilities that matter for message queues, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Messaging paradigm
- Pub/sub
- Delivery guarantee
- -
- Ordering guarantee
- -
- Durable replayable log
- ✓
- Message replay / rewind
- ✓
- Wire protocol
- -
- Kafka-protocol compatible
- -
- Partitioned horizontal scaling
- ✓
- Geo / cross-region replication
- -
- Consumer groups / competing consumers
- ✓
- Dead-letter queue
- -
- Managed cloud offering exists
- -
- Hosting
- Self-hosted only
- Built-in stream processing
- -
Platform & deployment
Independently observed- CLI
- Self-hosted
NATS alternatives
Other message queues we track, ranked by the same independent score.
- Apache KafkaDistributed event streaming platform for high-performance data pipelines and streaming analyticslow · 26%
- Temporalmedium · 59%
- RedpandaHigh-performance Kafka-compatible streaming platform for real-time data and AI agentslow · 45%
- RabbitMQlow · 26%
- WarpStream10x Cheaper Than Kafkamedium · 62%
- Apache KafkaDistributed event streaming platform for high-performance data pipelines and streaming analyticslow · 34%
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for NATS, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Package Downloads | 79 | 0.15 | 12.1 | ✓ |
| Github Activity | 63 | 0.10 | 6.6 | ✓ |
| Release Cadence | 98 | 0.06 | 5.7 | ✓ |
| Capabilities | 67 | 0.07 | 4.7 | ✓ |
| Github Stars | 81 | 0.03 | 2.4 | ✓ |
| Integrations | 0 | 0.09 | 0.0 | - |
| Security Posture | 5 | 0.13 | 0.0 | - |
| Stackoverflow Activity | 0 | 0.07 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 100 | mediumsource · 2026-08-01 · 65% |
Adoption
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | {"hosting":"self","paradigm":"pubsub","message_replay":true,"persistent_log":true,"consumer_groups":true,"horizontal_scaling":true} | mediumsource · 2026-08-05 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Go | mediumsource · 2026-08-01 · 63% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-08-01 · 99% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | {"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]} | highsource · 2026-08-05 · 75% |
Pricing
Release
| Attribute | Value | Evidence |
|---|---|---|
| Cadence days | 4 | mediumsource · 2026-08-01 · 70% |
Security
| Attribute | Value | Evidence |
|---|---|---|
| Gdpr | Yes | highsource · 2026-08-05 · 75% |