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CrystalMQ

CrystalMQ

CrystalMQ is an open-source message queuing software that enables asynchronous message-based communication between distributed applications. It is lightweight, fast, and scalable.
Network & Admin Message Queuing
messaging queueing distributed-systems
CrystalMQ screenshot
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CrystalMQ: Open-Source Message Queuing Software

CrystalMQ is an open-source message queuing software that enables asynchronous message-based communication between distributed applications. It is lightweight, fast, and scalable.

What is CrystalMQ?

CrystalMQ is an open-source message queuing middleware that implements the Advanced Message Queuing Protocol (AMQP) standard. It enables asynchronous messaging between distributed applications through message queues and brokers.

Some key features of CrystalMQ include:

  • Lightweight and fast - Built with high performance in mind using C++
  • Cross-platform - Runs on Linux, Windows, macOS, and Unix systems
  • Scalable - Handles millions of messages per second across distributed nodes
  • Flexible - Supports topics, queues, fanout exchanges, and other messaging patterns
  • Reliable - Supports persistence, delivery guarantees, and transactions
  • Interoperable - Implements AMQP 0.9.1 for connecting other AMQP clients/brokers

CrystalMQ can be used to simplify complex architectures by decoupling components and enabling asynchronous event-driven systems. Typical use cases include IT automation, streaming data pipelines, job processing, and microservices communication.

Being open source and lightweight, it is a good alternative to commercial options like RabbitMQ or Kafka in cases where latency and throughput needs are moderate.

CrystalMQ Features

Features

  1. Open source and free
  2. Supports a variety of messaging protocols like AMQP, MQTT, STOMP
  3. High performance and low latency
  4. Horizontally scalable through sharding
  5. Persistence using Redis or PostgreSQL
  6. Supports clustering for high availability
  7. Plugin architecture for extendibility
  8. Admin dashboard and REST API for management

Pricing

  • Open Source

Pros

Lightweight and fast compared to many commercial MQ servers

Very scalable for high throughput needs

Supports many developer-friendly protocols out of the box

Easy to deploy, manage, and monitor

Open source with active community support

Cons

Lacks some advanced features of commercial MQ servers

Limited documentation and examples

Not ideal for complex routing logic

UI is basic compared to some alternatives

Official Links

Official Website
https://www.bevywise.com/hosted-mqtt-server/

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The Best CrystalMQ Alternatives

View all CrystalMQ alternatives with detailed comparison →

Top Network & Admin and Message Queuing and other similar apps like CrystalMQ

Here are some alternatives to CrystalMQ:

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mosquitto
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HiveMQ
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VerneMQ
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emqtt
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Mosquitto icon

Mosquitto

Mosquitto is an open source message broker that implements the MQTT protocol. MQTT stands for Message Queuing Telemetry Transport. It allows devices to connect and publish messages to the broker, while other devices can subscribe to those messages.Some key features of Mosquitto:Lightweight and optimized for low resource usageImplements versions 3.1...
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HiveMQ icon

HiveMQ

HiveMQ is an open source, on-premise MQTT messaging broker and client library that enables scalable, secure, and reliable transfer of data between IoT devices and the cloud. Some key features of HiveMQ include:Supports MQTT 3.1.1 and 5.0 protocolsBuilt-in clustering for horizontal scalingPersistence mechanisms to provide reliable message deliveryFine-grained access control...
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VerneMQ icon

VerneMQ

VerneMQ is an open-source, high-performance MQTT messaging broker designed for large-scale IoT and M2M applications. It is written in Erlang which makes it highly scalable, fault-tolerant and suitable for mission-critical deployments.Some key features of VerneMQ include:Built-in clustering support for setting up highly available MQTT infrastructuresPluggable authentication and authorization for securing...
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Emqtt icon

Emqtt

emqtt is an open-source, scalable, distributed MQTT message broker written in Erlang/OTP. It supports MQTT v3.1/v3.1.1/v5.0 protocols and can handle tens of millions of concurrent MQTT connections on one cluster. emqtt provides a reliable remote message queue for IoT messaging applications and data streaming processing.Key features of emqtt include:Distributed cluster...
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