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Azure Web PubSub

Real-time messaging for web applications using WebSockets and the publish-subscribe pattern.

Build real-time messaging into your web applications

Develop web applications with real-time messaging using Azure Web PubSub, a fully managed service that supports native and serverless WebSockets. Create loosely coupled, scalable applications—including chats, live broadcasting, and IoT dashboards—with the publish-subscribe messaging pattern. Keep your focus on functionality while Web PubSub manages the flow of data and content to your webpages and mobile applications.

Real-time publish-subscribe messaging for web application development through native and serverless WebSocket support

Built-in support for large-scale client connections and highly available architectures

Support for a wide variety of client SDKs and programming languages

Focus on application logic, not infrastructure

Add real-time messaging and communication functionality to your application without the need to provision and maintain WebSocket servers. As a fully managed service, Azure Web PubSub handles hosting, scalability, load balancing, and other tasks so you’re free to focus on what you do best.

Engage customers anywhere in real time

Deliver real-time messages to your customers anywhere across web applications, mobile platforms, and desktop platforms with flexible SDKs.

Build advanced capabilities with Azure services

Add sophisticated capabilities to your applications using Azure services—such as Azure AI Services for speech recognition and machine learning—and help protect them with built-in Azure security.

Flexible and scalable pricing

Start building your web applications for free, then scale up according to your needs with flexible pricing.

Learn how to build real time applications with WebSockets and Azure Web PubSub.

Comprehensive security and compliance, built in

Security Center overview showing policy and compliance and resource security hygiene in Azure
Security Center compute and apps overview with a list of recommendations in Azure

Get started with an Azure free account


Start free. Get USD$200 credit to use within 30 days. While you have your credit, get free amounts of many of our most popular services, plus free amounts of 55+ other services that are always free.


After your credit, move to pay as you go to keep building with the same free services. Pay only if you use more than your free monthly amounts.


After 12 months, you'll keep getting 55+ always-free services—and still pay only for what you use beyond your free monthly amounts.

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