NATS vs Solace PubSub+ Event Broker
NATS
nats.io
Solace PubSub+ Event Broker
solace.comSide by side
| Figure | NATS | Solace PubSub+ Event Broker |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 5 |
| Spec score · Message Queue (MQ) Software | 7.5 (#19) | 8.2 (#11) |
| Spec score · Message Broker Software | 7.4 (#29) | 8.2 (#13) |
| Deployment | NATS is designed for distributed systems and edge deployments, and supports topology growth using leaf nodes and superclusters. | The broker is available as a cloud service, software, or appliance and can run in clouds, data centers, and remote locations. |
| Integrations | The download page lists connectors and utilities for Apache Flink, Apache Spark, AWS, Elasticsearch, Fluent Bit, MongoDB, Prometheus, and other tools. | Solace offers supported micro-integrations for applications, cloud services, and integration tools. |
| Intended users | NATS is aimed at teams building distributed systems with dynamic, loosely coupled services, including deployments on low-resource edge devices. | The product page describes the broker for enterprises with demanding messaging and streaming needs and for connecting applications, customers, partners, and devices. |
| Messaging patterns | NATS supports pub/sub, request/reply, and persistent streaming through JetStream. | The product supports publish/subscribe, queuing, request/reply, streaming and replay use cases. |
| Purpose | NATS is an open-source messaging system for building distributed systems across clouds and user-defined edge environments. | The Event Broker streams information among applications, AI agents, and devices across cloud, on-premises, and edge environments. |
| Security | NATS documents authentication, subject-level authorization, TLS encryption, and isolated accounts for multitenancy. | Solace Cloud states that its infrastructure for customer event broker services, Solace Home Cloud, and the Cloud Console complies with GDPR, SOC 2 Type 2, and ISO 27001. |
Plans
Solace PubSub+ Event Broker
- Event Broker Software StandardFree
- Solace Cloud Event Broker TrialFree
- Solace Cloud trialFree
- Solace Event Broker Software Free VersionFree
- Event Broker Software EnterprisePriced on request
In their own words
Solace PubSub+ Event Broker
Solace PubSub+ Event Broker streams information among applications, AI agents, and devices across cloud, on-premises, and edge environments. Multiple brokers can form an event mesh to route data across clouds, data centers, and geographies. It is offered as a cloud service, software, or appliance, for deployment in clouds, data centers, and remote locations. Messaging features include exchange patterns, qualities of service, caching, partitioned queues, and replay. Supported protocols include AMQP, Kafka, MQTT, REST, and WebSocket, alongside APIs for programming languages. Solace offers supported micro-integrations for applications, cloud services, and integration tools. Monitoring includes custom dashboards and alerts, and distributed tracing is broker-native and based on OpenTelemetry. Cloud services enable secure protocol ports by default and disable plain-text ports by default. Free options include a 30-day cloud trial and a free enterprise-grade software version. Solace was founded in 2001 and is headquartered in Ottawa, Ontario, Canada.