Best Self-hosted Messaging & Event Streaming (Brokers/Queues) tools in 2026
15 self-hosted open source alternatives in this category
See also:
Backup & RecoveryCompute & Virtualization (VM/Hypervisor Management)Container Management (Docker & Stacks)Core Network Services (DNS, DHCP, IPAM)Edge & Traffic (Reverse Proxy, Load Balancing, Web Servers)Monitoring & ObservabilityOrchestration & Scheduling (Kubernetes & Alternatives)Self-Hosting Platforms & Control PanelsStorage Services (File/Object)15 services found
Vector
High-performance observability data pipeline written in Rust
Open-source observability pipeline to collect, transform, and route logs and metrics with a single, high-performance binary and programmable transforms.
EMQX
Scalable MQTT broker and real-time messaging platform for IoT
EMQX is a high-performance MQTT broker and IoT messaging platform with clustering, security controls, a SQL rules engine, and integrations to databases and event systems.
Apprise
Unified notifications library for 120+ services via a single API.
A Python-based notification library and CLI that routes messages to 120+ services via URL-based configurations, enabling self-hosted cross-platform alerts.
Eclipse Mosquitto
Lightweight MQTT message broker
Eclipse Mosquitto is a lightweight, open-source MQTT broker supporting MQTT 5.0 and 3.1.1, plus client libraries and CLI tools for pub/sub messaging.
Centrifugo
Scalable open-source real-time messaging server for pub/sub
Open-source, Go-based real-time messaging server for pub/sub and live updates; supports WebSocket, SSE, gRPC and brokers (Redis, NATS) with official SDKs.
ejabberd
Scalable real-time messaging server for XMPP, MQTT, and SIP
ejabberd is an Erlang/OTP-based messaging server providing XMPP chat and presence, MQTT broker capabilities for IoT, and SIP services for real-time communications.
VerneMQ
Distributed MQTT message broker built on Erlang/OTP
VerneMQ is a high-performance, distributed MQTT broker for scalable, highly available IoT and M2M messaging, with clustering, TLS, WebSockets, plugins, and integrations.
AnyCable
Realtime server for reliable two-way communication via WebSockets and SSE
AnyCable is a realtime server for reliable two-way communication over WebSockets and SSE, designed to power chats, notifications, presence, and streaming updates for any...
Notifo
Multi-channel notification platform for apps and customers
Open-source multi-channel notification service with REST API, management UI, templates and channel abstraction for email, web, push and SMS; built with ASP.NET Core and R...
Spectrum 2
Open-source instant messaging transport gateway for multiple IM networks
A protocol gateway that bridges users across different instant messaging networks using libpurple adapters, enabling cross-network chat and presence.
PushBits
Relay server that forwards push notifications to Matrix
Self-hosted relay server exposing a Gotify-compatible HTTP API to send push notifications which are delivered to users via the Matrix protocol; supports multiple users, c...
Tigase XMPP Server
Modular, high-performance XMPP/Jabber server in Java
Scalable, modular XMPP/Jabber server written in Java supporting TCP, BOSH, WebSockets, federation, components, HTTP API and push notifications.
BunkerM
Web-based management platform for Mosquitto MQTT brokers
Containerized MQTT management solution bundling a Mosquitto broker with a web UI for ACLs, dynamic security, client management, monitoring and cloud bridges.
MQTT Web Interface
Real-time web UI for visualizing and interacting with MQTT message flows
Open-source web application to monitor MQTT topics, publish messages, visualize real-time message flows, and persist messages with configurable SQLite storage. Docker-rea...
Apache Flink
Distributed stream and batch data processing engine
Apache Flink is a distributed engine for stateful stream processing and batch analytics with event-time semantics, fault tolerance, and scalable deployment on clusters.
