1.nats-io / nats-server
High-Performance server for NATS.io, the cloud and edge native messaging system.
- go
- golang
- messaging
- message-bus
- message-queue
- cloud-native
- +9 more
+1,355 stars
from 19,646 · score 7.21
Trending repositories
Ranked by Attention Score: stars gained over the last 180 complete days
34 repositories by Attention Score · May 9, 2026 – Nov 4, 2026 (UTC)
2.centrifugal / centrifugo
Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once and forever.
+749 stars
from 10,199 · score 6.62
3.emqx / emqx
The most scalable and reliable MQTT broker for AI, IoT, IIoT and connected vehicles
+733 stars
from 16,151 · score 6.60
4.pgmq / pgmq
A lightweight message queue. Like AWS SQS and RSMQ but on Postgres.
+562 stars
from 4,813 · score 6.33
5.eclipse-mosquitto / mosquitto
Eclipse Mosquitto - An open source MQTT broker
+538 stars
from 10,796 · score 6.29
6.rabbitmq / rabbitmq-server
Open source RabbitMQ: core server and tier 1 (built-in) plugins
+390 stars
from 13,563 · score 5.97
7.apache / rocketmq
Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.
- rocketmq
- cloud-native
- eventing
- java
- messaging
- streaming
- +1 more
+346 stars
from 22,304 · score 5.85
8.apache / pulsar
Apache Pulsar - distributed pub-sub messaging system
- pulsar
- pubsub
- messaging
- streaming
- queuing
- event-streaming
+218 stars
from 15,134 · score 5.39
9.nanomq / nanomq
An ultra-lightweight and blazing-fast Messaging Bus/MQTT Broker for Edge & SDV
- mqtt
- mqtt-broker
- iot-edge
- nng
- aio
- actor-model
- +14 more
+184 stars
from 2,470 · score 5.22
10.nsqio / nsq
A realtime distributed messaging platform
+149 stars
from 25,623 · score 5.01
11.dunglas / mercure
🪽 An open, easy, fast, reliable and battery-efficient solution for real-time communications
- api
- web-api
- server-sent-events
- subscriptions
- golang
- hypermedia
- +10 more
+141 stars
from 5,217 · score 4.96
12.softwaremill / elasticmq
In-memory message queue with an Amazon SQS-compatible interface. Runs stand-alone or embedded.
- scala
- sqs-interface
- elasticmq
- amazon-sqs
- aws
- aws-sqs
- +1 more
+117 stars
from 2,836 · score 4.77
13.cloudamqp / lavinmq
Ultra quick message queue and streaming server
- message-queue
- server
- amqp
- background-jobs
- job-queue
- message-broker
- +3 more
+114 stars
from 917 · score 4.74
14.mochi-mqtt / server
The fully compliant, embeddable high-performance Go MQTT v5 server for IoT, smarthome, and pubsub
+107 stars
from 1,853 · score 4.68
15.frain-dev / convoy
The Cloud Native Webhooks Gateway
- webhooks
- convoy
- golang
- automation
- cli
- cloud
- +12 more
+103 stars
from 2,784 · score 4.64
16.vernemq / vernemq
A distributed MQTT message broker based on Erlang/OTP. Built for high quality & Industrial use cases. The VerneMQ mission is active & the project maintained. Thank you for your support!
- mqtt
- m2m
- scalable
- broker
- erlang
- distributed
- +13 more
+90 stars
from 3,557 · score 4.51
17.bloomberg / blazingmq
A modern high-performance open source message queuing system
+61 stars
from 3,160 · score 4.13
+57 stars
from 1,014 · score 4.06
19.thingsboard / tbmq
The ultimate distributed MQTT broker. Handles 100M+ connections and 10M msg/sec with ease. Built on Kafka to provide industrial-grade persistence and eliminate data loss.
+53 stars
from 723 · score 3.99
20.wind-c / comqtt
A lightweight, high-performance go mqtt server(v3.0|v3.1.1|v5.0) supporting distributed cluster
- golang
- mqtt
- iot
- cluster
- distributed
- golang-library
- +9 more
+46 stars
from 1,139 · score 3.85
+44 stars
from 2,418 · score 3.81
22.moscajs / aedes
Barebone MQTT broker that can run on any stream server, the node way
+43 stars
from 1,938 · score 3.78
23.apache / eventmesh
EventMesh is a new generation serverless event middleware for building distributed event-driven applications.
- esb
- event-driven
- event-mesh
- event-governance
- cloud-native
- serverless
- +11 more
+38 stars
from 1,721 · score 3.66
+35 stars
from 2,428 · score 3.58
25.hivemq / hivemq-community-edition
HiveMQ CE is a Java-based open source MQTT broker that fully supports MQTT 3.x and MQTT 5. It is the foundation of the HiveMQ Enterprise Connectivity and Messaging Platform
+25 stars
from 1,190 · score 3.26
26.emitter-io / emitter
High performance, distributed and low latency publish-subscribe platform.
- pubsub
- networking
- emitter
- mqtt
- mqtt-broker
- realtime
- +4 more
+21 stars
from 3,990 · score 3.09
27.DrmagicE / gmqtt
Gmqtt is a flexible, high-performance MQTT broker library that fully implements the MQTT protocol V3.x and V5 in golang
- mqtt
- mqtt-broker
- mqtt-protocol
- mqtt-server
- server
- gmqtt
- +1 more
+19 stars
from 1,034 · score 3.00
28.allegro / hermes
Fast and reliable message broker built on top of Kafka.
+18 stars
from 854 · score 2.94
29.weyoss / redis-smq
RedisSMQ: A high-performance Redis message queue for Node.js
- redis
- background-jobs
- brokers
- dead-letter-queue
- delayed-jobs
- distributed-systems
- +14 more
+10 stars
from 662 · score 2.40
30.crossbario / crossbar
Crossbar.io - WAMP application router
+7 stars
from 2,054 · score 2.08
31.tigase / tigase-server
Highly optimized, extremely modular and very flexible XMPP/Jabber server
- tigase
- xmpp
- server
- java
- jabber
- iot
- +7 more
+5 stars
from 353 · score 1.79
32.killme2008 / Metamorphosis
A high available,high performance distributed messaging system.
+3 stars
from 1,325 · score 1.39
33.zalando / nakadiArchived
A distributed event bus that implements a RESTful API abstraction on top of Kafka-like queues
- java
- apis
- event-bus
- restful
- microservices
- postgresql
- +3 more
+2 stars
from 963 · score 1.10
+2 stars
from 451 · score 1.10