HiveMQ MQTT Broker vs Solace PubSub+ Event Broker
HiveMQ MQTT Broker
hivemq.com
Solace PubSub+ Event Broker
solace.comSide by side
| Figure | HiveMQ MQTT Broker | Solace PubSub+ Event Broker |
|---|---|---|
| Price from | $299/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 7 | 5 |
| Spec score · Message Broker Software | 8.3 (#9) | 8.2 (#13) |
| Spec score · Message Queue (MQ) Software | 8.2 (#10) | 8.2 (#11) |
| Deployment | The self-managed broker can run on private, hybrid, and public clouds, with pre-built images for Kubernetes, OpenShift, and DC/OS. | The broker is available as a cloud service, software, or appliance and can run in clouds, data centers, and remote locations. |
| Founded | 2012 | 2001 |
| Headquarters | Landshut, Germany | Ottawa, Ontario, Canada |
| Integrations | HiveMQ extensions integrate with streaming services, databases, data warehouses, and security services; the maker lists Kafka, Amazon Kinesis, and Google Pub/Sub extensions. | Solace offers supported micro-integrations for applications, cloud services, and integration tools. |
| Intended users | HiveMQ describes the broker as built for mission-critical enterprise operations and large-scale IoT deployments. | The product page describes the broker for enterprises with demanding messaging and streaming needs and for connecting applications, customers, partners, and devices. |
| Purpose | HiveMQ Broker provides reliable, event-driven MQTT messaging between connected devices and enterprise systems. | The Event Broker streams information among applications, AI agents, and devices across cloud, on-premises, and edge environments. |
| Security | The broker page lists TLS 1.2/1.3, mutual TLS, fine-grained access control, pluggable authentication such as OAuth 2.0 and LDAP, and audit logging. | 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. |
| Support | The maker offers Community, Silver, Gold, and Platinum support options; Gold and Platinum support are available up to 24×7. | The pricing page lists standard support with 24x7x365 product defect and outage resolution, while Advanced and Advanced+ list response times of 30 and 15 minutes respectively. |
Plans
HiveMQ MQTT Broker
- Launch$299 a month
- Run$499 a month
- ServerlessPriced on request
- StarterPrice not published
- LabFree
- Fully-managed EnterprisePriced on request
- Self-managed EnterprisePriced on request
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
HiveMQ MQTT Broker
HiveMQ MQTT Broker provides event-driven messaging between connected devices and enterprise systems. It supports MQTT 3.1.1 and MQTT 5.0, with persistent messages stored to disk, offline queuing, and quality-of-service support. Dynamic clustering lets operators add or remove broker nodes while the cluster runs. Extensions connect to streaming services, databases, data warehouses, and security services, with Kafka, Amazon Kinesis, and Google Pub/Sub listed as examples. Security options include TLS 1.2/1.3, mutual TLS, fine-grained access controls, pluggable authentication such as OAuth 2.0 and LDAP, and audit logging. The self-managed broker can run on private, hybrid, and public clouds, with images for Kubernetes, OpenShift, and DC/OS. In evaluation mode without a valid license, it supports up to 25 client connections. HiveMQ describes the broker as intended for large-scale IoT deployments and mission-critical enterprise operations. Plans include a free option; Launch is $299 a month and Run is $499 a month. Other listed plans have no price listed.
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.