emitter.io

Emitter.io

emitter.io is an open-source real-time messaging service for connecting online devices. It enables real-time data streaming between clients via TCP and WebSocket protocols. emitter.io is lightweight, scalable, and optimized for speed.
emitter.io image
realtime messaging communication opensource scalable lightweight tcp websocket

emitter.io: Real-Time Messaging Service

Open-source messaging service for connecting online devices, enabling real-time data streaming via TCP and WebSocket protocols.

What is Emitter.io?

emitter.io is an open-source real-time messaging service designed for connecting online devices and streaming data between clients in real-time. It provides a publish-subscribe messaging API that allows clients to subscribe to named channels or topics and receive messages published to those channels by other clients.

Some key features of emitter.io include:

  • Lightweight and scalable - Built on MQTT and designed for performance, emitter can handle thousands of concurrent connections
  • Speed and low latency - Optimized for real-time message streaming with minimal delays
  • Reliable delivery - Supports TCP and WebSocket transports with queue persistence for assured message delivery
  • Encrypted connections - encrypts all traffic with TLS/SSL certificates
  • Flexible APIs - Provides simple and easy-to-use APIs for most programming languages
  • Free and open source - Released under the MIT license for maximum adoption and community contribution

emitter.io is ideal for building real-time, data-intensive applications such as chat apps, live updates, IoT devices, and more. Its lightweight and scalable architecture makes it suitable for small or large-scale deployments. The open-source model also allows developers to host emitter themselves or use one of several available hosted services.

Emitter.io Features

Features

  1. Real-time messaging
  2. Supports publishing & subscribing to channels
  3. Supports presence detection
  4. Supports TLS & authentication
  5. Cross-platform libraries
  6. Horizontal scalability

Pricing

  • Open Source

Pros

Open source and free

Lightweight and fast

Easy to integrate

Scales horizontally

Supports wide range of protocols

Cons

Limited documentation

Not as feature rich as commercial alternatives

Lacks some enterprise features like role based access control


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