Assembly Line

RabbitMQ Server

Open source RabbitMQ: core server and tier 1 (built-in) plugins

RabbitMQ Server is an open-source libraries and runtimes project on GitHub under a license set out in its repository, with 14k stars. It is built with V8. Its last push was today.

Stars
14k
License
See repository
Activity
Active
Latest release
v4.4.0

Code on GitHub Website

Judgement

What it is
Building block
What it does
A message broker supporting AMQP, MQTT and STOMP, with queues, streams and routing for decoupling services.
Adopt it when
Your services need reliable asynchronous messaging with flexible routing.
Watch out
Erlang-based operations are unfamiliar to many teams, and clustering needs care.
Ready for
Production-ready
Runs as
Self-hosted server and cloud service
Built with
Erlang
How established
Established: started 16 years ago, latest release v4.4.0.
What the license allows
GitHub could not read the license. Check it in the repository before reusing any code.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

V8

Follow it down: RabbitMQ Server → V8 → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

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    ★ 62k AGPL-3.0 TypeScript Active, pushed 5 days ago
  2. 2
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    🪓 An orchestration engine for background tasks, AI agents, and durable workflows

    Building block Usable You have outgrown Celery or BullMQ and want durable workflows without operating Temporal.

    ★ 8.2k MIT Go Active, pushed today
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    The definitive self-hosted URL shortener

    Complete system Production-ready You need an API-first shortener for marketing or product links on your own infrastructure.

    ★ 5.4k MIT PHP Active, pushed today
  4. 4
    Cenit cenit-io

    :rocket: Cenit IO - 100% open source integration Platform (iPaaS)

    Complete system Usable You want a self-hosted integration platform and have Ruby, MongoDB and RabbitMQ skills.

    ★ 509 MIT Ruby Active, pushed 3 days ago
  5. 5
    Pneumaticworkflow pneumaticapp

    Free and source-available Apache 2.0 licensed lightweight workflow automation tool.

    Complete system Usable A small or mid-size team wants a self-hosted checklist-style process tool rather than a full BPM suite.

    ★ 320 Apache-2.0 Python Active, pushed 3 days ago
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    ★ 334 Apache-2.0 Python Slowing, pushed 12 months ago
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    Complete system Experimental You want to study or run a combined chat and video system and have the skills to operate several backing services.

    ★ 104 Apache-2.0 Go Active, pushed today

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Stars, license and activity come from GitHub and refresh on a rolling hourly schedule. The project's own description is quoted as written.