Compare the Top Event Brokers that integrate with JavaScript as of June 2025

This a list of Event Brokers that integrate with JavaScript. Use the filters on the left to add additional filters for products that have integrations with JavaScript. View the products that work with JavaScript in the table below.

What are Event Brokers for JavaScript?

Event brokers are middleware platforms that manage the flow of events between different systems or applications in an event-driven architecture (EDA). These brokers facilitate the decoupling of event producers and consumers by handling the publishing, routing, and consumption of events in real time. They allow systems to asynchronously process and respond to events such as data changes, user actions, or external triggers without direct interaction between the components. Event brokers are often used in microservices architectures, IoT ecosystems, and real-time data processing systems to enable efficient and scalable communication. Compare and read user reviews of the best Event Brokers for JavaScript currently available using the table below. This list is updated regularly.

  • 1
    PubNub

    PubNub

    PubNub

    Innovate with Realtime Features: We take care of realtime communication infrastructure so you can focus on your app. Our Platform for Realtime Communication: A platform to build and operate real-time interactivity for web, mobile, AI/ML, IoT, and Edge computing applications Faster & Easier Deployments: SDK support for 50+ mobile, web, server, and IoT environments (PubNub and community supported) and more than 65 pre-built integrations with external and third-party APIs to give developers the features they need regardless of programming language or tech stack. Scalability: The industry’s most scalable platform capable of supporting millions of concurrent users and allows for rapid growth with low latency, high uptime, and without financial penalties. Security & Compliance: Enterprise-grade security and compliance with the most stringent regulations worldwide, including GDPR, SOC 2, HIPAA, ISO 27001, and CCPA.
    Starting Price: $0
  • 2
    Ably

    Ably

    Ably

    Ably is the definitive realtime experience platform. We power more WebSocket connections than any other pub/sub platform, serving over a billion devices monthly. Businesses like HubSpot, NASCAR and Webflow trust us to power their critical applications - reliably, securely and at serious scale. Ably’s products place composable realtime in the hands of developers. Simple APIs and SDKs for every tech stack, enable the creation of a host of live experiences - including chat, collaboration, notifications, broadcast and fan engagement. All powered by our scalable infrastructure.
    Starting Price: $49.99/month
  • 3
    Lightstreamer

    Lightstreamer

    Lightstreamer

    ​Lightstreamer is an event broker optimized for the internet, ensuring seamless real-time data delivery across the web. Unlike traditional brokers, Lightstreamer automatically handles proxies, firewalls, disconnections, network congestion, and the general unpredictability of the internet. With its intelligent streaming feature, Lightstreamer guarantees real-time data transmission, always finding a way to deliver your data reliably and efficiently, ensuring robust last-mile messaging. Lightstreamer offers technology that is both mature and cutting-edge, continuously evolving to stay at the forefront of innovation. With a proven track record and years of field-tested performance, Lightstreamer ensures your data is delivered reliably and efficiently. Experience unparalleled reliability in any scenario with Lightstreamer.
    Starting Price: Free
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