Comparison

RabbitMQ vs Solace

On the evidence we track, RabbitMQ leads this comparison with a composite score of 65/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

RabbitMQ full profile →Solace full profile →

Machine formatsJSON Markdown GraphQLor send Accept: application/json

★RabbitMQ65

Solace39

Attribute comparison across 2 tools
Attribute	RabbitMQLeader	Solace
Vioscale score	65 / 100low · 38%	39 / 100low · 7%
Pricing
Free tierpricing.free_tier	✓	-
Modelpricing.model	commercial	-
Price levelpricing.price_level	low	-
Transparentpricing.transparent	✗	-
Integrations
Countintegrations.count	-	4
Security
Disclosure policysecurity.disclosure_policy	✓	-
Scorecardsecurity.scorecard	5.8	-
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=conda&package_name=rabbitmq-server&per_page=100 · Last 12m: 0	-
Adoption
Dependent reposadoption.dependent_repos	3	-
Github starsadoption.github_stars	13,807	-
Package downloads weeklyadoption.package_downloads_weekly	3,179,580	-
Activity
Commits last 30dactivity.commits_last_30d	100	-
Release
Cadence daysrelease.cadence_days	9	-
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	BSD-3-Clause	-
Language
Primarylanguage.primary	JavaScript	-

Score

Vioscale score

RabbitMQ65 / 100low · 38%

Solace39 / 100low · 7%

Pricing

Free tier

RabbitMQ✓

Solace–

Model

RabbitMQcommercial

Solace–

Price level

RabbitMQlow

Solace–

Transparent

RabbitMQ✗

Solace–

Integrations

Count

RabbitMQ–

Solace4

Security

Disclosure policy

RabbitMQ✓

Solace–

Scorecard

RabbitMQ5.8

Solace–

Vulnerabilities

RabbitMQCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=conda&package_name=rabbitmq-server&per_page=100 · Last 12m: 0

Solace–

Adoption

Dependent repos

RabbitMQ3

Solace–

Github stars

RabbitMQ13,807

Solace–

Package downloads weekly

RabbitMQ3,179,580

Solace–

Activity

Commits last 30d

RabbitMQ100

Solace–

Release

Cadence days

RabbitMQ9

Solace–

History

RabbitMQ20 items

Solace–

License

Spdx

RabbitMQBSD-3-Clause

Solace–

Language

Primary

RabbitMQJavaScript

Solace–

Capabilities

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

Capability comparison for Message Queues
Capability	RabbitMQ	Solace
Core
Messaging paradigm	Queue	Pub/sub
Correctness
Delivery guarantee	At-least-once	At-most-once
Ordering guarantee	-	Per-partition
Durability
Durable replayable log	✓	✗
Message replay / rewind	-	-
Interop
Wire protocol	AMQP 1.0, MQTT 5.0, STOMP	MQTT, REST, JMS, Direct
Kafka-protocol compatible	-	-
Scale
Partitioned horizontal scaling	✓	✓
Geo / cross-region replication	✓	-
Consumption
Consumer groups / competing consumers	✓	✓
Dead-letter queue	-	-
Deployment
Managed cloud offering exists	✓	✓
Hosting	Cloud + self-hosted	Cloud + self-hosted
Processing
Built-in stream processing	✓	-

Core

Messaging paradigm

RabbitMQQueue

SolacePub/sub

Correctness

Delivery guarantee

RabbitMQAt-least-once

SolaceAt-most-once

Ordering guarantee

RabbitMQ-

SolacePer-partition

Durability

Durable replayable log

RabbitMQ✓

Solace✗

Message replay / rewind

RabbitMQ-

Solace-

Interop

Wire protocol

RabbitMQAMQP 1.0, MQTT 5.0, STOMP

SolaceMQTT, REST, JMS, Direct

Kafka-protocol compatible

RabbitMQ-

Solace-

Scale

Partitioned horizontal scaling

RabbitMQ✓

Solace✓

Geo / cross-region replication

RabbitMQ✓

Solace-

Consumption

Consumer groups / competing consumers

RabbitMQ✓

Solace✓

Dead-letter queue

RabbitMQ-

Solace-

Deployment

Managed cloud offering exists

RabbitMQ✓

Solace✓

Hosting

RabbitMQCloud + self-hosted

SolaceCloud + self-hosted

Processing

Built-in stream processing

RabbitMQ✓

Solace-

What each one is

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

RabbitMQ

Leader

A powerful, enterprise-grade open-source messaging and streaming broker that enables efficient, reliable and versatile communication for distributed microservices, real-time data, and IoT applications.

Independently observed

Solace

A messaging service that enables developers to create event-driven applications and microservices using multiple programming languages and open protocols (MQTT, REST, JMS, proprietary Direct) across cloud and self-hosted deployment options.

Independently observed

Pricing

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

RabbitMQ

Leader

HybridFree tier

Free open source, with commercial Tanzu RabbitMQ offering available

Open SourceFree
Tanzu RabbitMQContact sales

as of 2026-08-05verify ↗

Solace

Pricing not documented yet.

Platform & deployment

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

Platform and deployment support comparison
Supports	RabbitMQ	Solace
WebPlatforms	✓	✗
LinuxPlatforms	✓	✓
CLIPlatforms	✓	✓
Cloud / SaaSDeployment	✓	✓
Self-hostedDeployment	✓	✓
On-premiseDeployment	✓	✗

Platforms

Web

RabbitMQ✓

Solace✗

Linux

RabbitMQ✓

Solace✓

CLI

RabbitMQ✓

Solace✓

Deployment

Cloud / SaaS

RabbitMQ✓

Solace✓

Self-hosted

RabbitMQ✓

Solace✓

On-premise

RabbitMQ✓

Solace✗

Integrations

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

RabbitMQ

Leader

Not documented yet.

Solace

4 total

AWS
Kafka
Spark
IBM WebSphere

Independently observed

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