Comparison

BullMQ vs Solace

On the evidence we track, BullMQ leads this comparison with a composite score of 61/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

BullMQ full profile →Solace full profile →

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★BullMQ61

Solace39

Attribute comparison across 2 tools
Attribute	BullMQLeader	Solace
Vioscale score	61 / 100medium · 55%	39 / 100low · 7%
Pricing
Modelpricing.model	commercial	-
Price levelpricing.price_level	free	-
Integrations
Countintegrations.count	-	4
Security
Scorecardsecurity.scorecard	7.5	-
Soc2security.soc2	✓	-
Vulnerabilitiessecurity.vulnerabilities	Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=bullmq&per_page=100 · Last 12m: 0	-
Reliability
Status pagereliability.status_page	✓	-
Adoption
Dependent reposadoption.dependent_repos	1,185	-
Github starsadoption.github_stars	9,333	-
Package downloads weeklyadoption.package_downloads_weekly	8,237,365	-
Activity
Commits last 30dactivity.commits_last_30d	100	-
Release
Historyrelease.history	20 items	-
License
Spdxlicense.spdx	MIT	-
Language
Primarylanguage.primary	TypeScript	-

Score

Vioscale score

BullMQ61 / 100medium · 55%

Solace39 / 100low · 7%

Pricing

Model

BullMQcommercial

Solace–

Price level

BullMQfree

Solace–

Integrations

Count

BullMQ–

Solace4

Security

Scorecard

BullMQ7.5

Solace–

Soc2

BullMQ✓

Solace–

Vulnerabilities

BullMQCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=bullmq&per_page=100 · Last 12m: 0

Solace–

Reliability

Status page

BullMQ✓

Solace–

Adoption

Dependent repos

BullMQ1,185

Solace–

Github stars

BullMQ9,333

Solace–

Package downloads weekly

BullMQ8,237,365

Solace–

Activity

Commits last 30d

BullMQ100

Solace–

Release

History

BullMQ20 items

Solace–

License

Spdx

BullMQMIT

Solace–

Language

Primary

BullMQTypeScript

Solace–

Capabilities

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

Capability comparison for Message Queues
Capability	BullMQ	Solace
Core
Messaging paradigm	Job / task queue	Pub/sub
Correctness
Delivery guarantee	-	At-most-once
Ordering guarantee	-	Per-partition
Durability
Durable replayable log	✓	✗
Message replay / rewind	-	-
Interop
Wire protocol	-	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	Self-hosted only	Cloud + self-hosted
Processing
Built-in stream processing	-	-

Core

Messaging paradigm

BullMQJob / task queue

SolacePub/sub

Correctness

Delivery guarantee

BullMQ-

SolaceAt-most-once

Ordering guarantee

BullMQ-

SolacePer-partition

Durability

Durable replayable log

BullMQ✓

Solace✗

Message replay / rewind

BullMQ-

Solace-

Interop

Wire protocol

BullMQ-

SolaceMQTT, REST, JMS, Direct

Kafka-protocol compatible

BullMQ-

Solace-

Scale

Partitioned horizontal scaling

BullMQ-

Solace✓

Geo / cross-region replication

BullMQ-

Solace-

Consumption

Consumer groups / competing consumers

BullMQ-

Solace✓

Dead-letter queue

BullMQ-

Solace-

Deployment

Managed cloud offering exists

BullMQ✗

Solace✓

Hosting

BullMQSelf-hosted only

SolaceCloud + self-hosted

Processing

Built-in stream processing

BullMQ-

Solace-

What each one is

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

BullMQ

Leader

An open source system for queueing and processing background tasks using Redis as the data store, with support for Node.js, Python, Rust, Elixir, and PHP 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.

BullMQ

Leader

Open source

as of 2026-08-14verify ↗

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	BullMQ	Solace
LinuxPlatforms	-	✓
CLIPlatforms	-	✓
Cloud / SaaSDeployment	✗	✓
Self-hostedDeployment	✓	✓

Platforms

Linux

BullMQ–

Solace✓

CLI

BullMQ–

Solace✓

Deployment

Cloud / SaaS

BullMQ✗

Solace✓

Self-hosted

BullMQ✓

Solace✓

Integrations

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

BullMQ

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.