happn

Happn

happn is an open-source, scalable pub/sub and data synchronization engine designed for high-performance real-time web and IoT applications. It enables rapid development of collaborative and distributed systems by handling data synchronization, messaging, and eventing.
happn image
pubsub data-sync realtime scalable

Happn: Open-Source Pub/Sub Engine

Happn is an open-source, scalable pub/sub and data synchronization engine designed for high-performance real-time web and IoT applications. It enables rapid development of collaborative and distributed systems by handling data synchronization, messaging, and eventing.

What is Happn?

happn is an open-source, scalable pub/sub and data synchronization engine designed for high-performance real-time web and IoT applications. It is built on proven technologies like Node.js, MongoDB, and Socket.IO to deliver low latency and high availability.

Key capabilities and benefits of happn include:

  • Real-time data synchronization across browsers, devices, and servers
  • Fast and reliable pub/sub messaging for building event-driven systems
  • Flexibility to scale up to support a large number of concurrent connections and messages
  • Modular architecture allowing integration with other systems and customized extensions
  • Simplifies development by handling complex tasks like caching, clustering, persistence etc.
  • Production-ready with support for security, encryption and access control

happn is well-suited for building systems like collaboration tools, IoT devices, multi-player games, chat applications, finance platforms, and other real-time interactive systems. Its pub/sub and synchronization capabilities help reduce complex state management code.

Happn Features

Features

  1. Real-time data synchronization
  2. Scalable pub/sub messaging
  3. Distributed systems development
  4. High-performance for web and IoT applications
  5. Collaborative and event-driven architecture

Pricing

  • Open Source

Pros

Open-source and highly customizable

Efficient data synchronization for real-time applications

Scalable and reliable messaging for distributed systems

Accelerates development of collaborative applications

Cons

Steep learning curve for complex use cases

Limited built-in features compared to commercial alternatives

Requires significant infrastructure setup and maintenance


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