---
uid: signalr/index
title: "SignalR | Microsoft Docs"
author: rick-anderson
description: "Microsoft ASP.NET SignalR is a library for ASP.NET developers that simplifies the process of adding real-time web functionality to your applications."
ms.author: aspnetcontent
ms.date: 10/24/2012
ms.assetid: 282a521f-2b86-4fac-bcf6-b6d5e0fe969c
msc.legacyurl: /signalr
msc.type: categoryindex
---
SignalR
====================
- [Guidance](overview/index.md)

    - [Getting Started](overview/getting-started/index.md)

        - [Introduction to SignalR](overview/getting-started/introduction-to-signalr.md)
        - [Supported Platforms](overview/getting-started/supported-platforms.md)
        - [Tutorial: Getting Started with SignalR 2](overview/getting-started/tutorial-getting-started-with-signalr.md)
        - [Tutorial: Getting Started with SignalR 2 and MVC 5](overview/getting-started/tutorial-getting-started-with-signalr-and-mvc.md)
        - [Tutorial: High-Frequency Realtime with SignalR 2](overview/getting-started/tutorial-high-frequency-realtime-with-signalr.md)
        - [Tutorial: Server Broadcast with SignalR 2](overview/getting-started/tutorial-server-broadcast-with-signalr.md)
        - [Hands On Lab: Real-Time Web Applications with SignalR](overview/getting-started/real-time-web-applications-with-signalr.md)
    - [Guide to the API](overview/guide-to-the-api/index.md)

        - [Hubs API Guide - Server (C#)](overview/guide-to-the-api/hubs-api-guide-server.md)
        - [Hubs API Guide - JavaScript Client](overview/guide-to-the-api/hubs-api-guide-javascript-client.md)
        - [Hubs API Guide - .NET Client (C#)](overview/guide-to-the-api/hubs-api-guide-net-client.md)
        - [Understanding and Handling Connection Lifetime Events in SignalR](overview/guide-to-the-api/handling-connection-lifetime-events.md)
        - [Working with Groups in SignalR](overview/guide-to-the-api/working-with-groups.md)
        - [Mapping SignalR Users to Connections](overview/guide-to-the-api/mapping-users-to-connections.md)
    - [Testing and Debugging](overview/testing-and-debugging/index.md)

        - [SignalR Troubleshooting](overview/testing-and-debugging/troubleshooting.md)
        - [Unit Testing SignalR Applications](overview/testing-and-debugging/unit-testing-signalr-applications.md)
        - [Enabling SignalR Tracing](overview/testing-and-debugging/enabling-signalr-tracing.md)
    - [Security](overview/security/index.md)

        - [Introduction to SignalR Security](overview/security/introduction-to-security.md)
        - [Authentication and Authorization for SignalR Hubs](overview/security/hub-authorization.md)
        - [Authentication and Authorization for SignalR Persistent Connections](overview/security/persistent-connection-authorization.md)
    - [Performance](overview/performance/index.md)

        - [SignalR Performance](overview/performance/signalr-performance.md)
        - [Introduction to Scaleout in SignalR](overview/performance/scaleout-in-signalr.md)
        - [SignalR Scaleout with Azure Service Bus](overview/performance/scaleout-with-windows-azure-service-bus.md)
        - [SignalR Scaleout with Redis](overview/performance/scaleout-with-redis.md)
        - [SignalR Scaleout with SQL Server](overview/performance/scaleout-with-sql-server.md)
        - [SignalR Connection Density Testing with Crank](overview/performance/signalr-connection-density-testing-with-crank.md)
        - [Using SignalR Performance Counters in an Azure Web Role](overview/performance/using-signalr-performance-counters-in-an-azure-web-role.md)
    - [Deployment and Hosting](overview/deployment/index.md)

        - [Tutorial: SignalR Self-Host](overview/deployment/tutorial-signalr-self-host.md)
        - [Using SignalR with Web Apps in Azure App Service](overview/deployment/using-signalr-with-azure-web-sites.md)
    - [Advanced](overview/advanced/index.md)

        - [Dependency Injection in SignalR](overview/advanced/dependency-injection.md)
    - [Releases](overview/releases/index.md)

        - [Upgrading SignalR 1.x Projects to version 2](overview/releases/upgrading-signalr-1x-projects-to-20.md)
    - [Older Versions](overview/older-versions/index.md)

        - [Tutorial: Getting Started with SignalR 1.x](overview/older-versions/tutorial-getting-started-with-signalr.md)
        - [Tutorial: Getting Started with SignalR 1.x and MVC 4](overview/older-versions/tutorial-getting-started-with-signalr-and-mvc-4.md)
        - [High-Frequency Realtime with SignalR 1.x](overview/older-versions/tutorial-high-frequency-realtime-with-signalr.md)
        - [Tutorial: Server Broadcast with ASP.NET SignalR 1.x](overview/older-versions/tutorial-server-broadcast-with-aspnet-signalr.md)
        - [Hubs API Guide - Server](overview/older-versions/signalr-1x-hubs-api-guide-server.md)
        - [SignalR 1.x Hubs API Guide - JavaScript Client](overview/older-versions/signalr-1x-hubs-api-guide-javascript-client.md)
        - [Hubs API Guide - .NET Client](overview/older-versions/signalr-1x-hubs-api-guide-net-client.md)
        - [Understanding and Handling Connection Lifetime Events in SignalR](overview/older-versions/handling-connection-lifetime-events.md)
        - [Working with Groups in SignalR 1.x](overview/older-versions/working-with-groups.md)
        - [Mapping SignalR Users to Connections in SignalR 1.x](overview/older-versions/mapping-users-to-connections.md)
        - [Introduction to SignalR Security (SignalR 1.x)](overview/older-versions/introduction-to-security.md)
        - [Authentication and Authorization for SignalR Hubs (SignalR 1.x)](overview/older-versions/hub-authorization.md)
        - [Authentication and Authorization for SignalR Persistent Connections (SignalR 1.x)](overview/older-versions/persistent-connection-authorization.md)
        - [SignalR Performance (SignalR 1.x)](overview/older-versions/signalr-performance.md)
        - [Introduction to Scaleout in SignalR 1.x](overview/older-versions/scaleout-in-signalr.md)
        - [SignalR Scaleout with Azure Service Bus (SignalR 1.x)](overview/older-versions/scaleout-with-windows-azure-service-bus.md)
        - [SignalR Scaleout with Redis (SignalR 1.x)](overview/older-versions/scaleout-with-redis.md)
        - [SignalR Scaleout with SQL Server (SignalR 1.x)](overview/older-versions/scaleout-with-sql-server.md)
        - [SignalR Troubleshooting (SignalR 1.x)](overview/older-versions/troubleshooting.md)
        - [Dependency Injection in SignalR 1.x](overview/older-versions/dependency-injection.md)
- [Videos](videos/index.md)

    - [ASP.NET SignalR Videos](videos/getting-started/index.md)

        - [SignalR and Web Sockets](videos/getting-started/signalr-and-web-sockets.md)