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---
title: ASP.NET Core SignalR supported platforms
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author: bradygaster
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description: Learn about the supported platforms for ASP.NET Core SignalR.
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monikerRange: '>= aspnetcore-2.1'
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ms.author: bradyg
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ms.custom: mvc
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ms.date: 01/16/2020
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no-loc: ["ASP.NET Core Identity", cookie, Cookie, Blazor, "Blazor Server", "Blazor WebAssembly", "Identity", "Let's Encrypt", Razor, SignalR]
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uid: signalr/supported-platforms
---
# ASP.NET Core SignalR supported platforms
## Server system requirements
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SignalR for ASP.NET Core supports any server platform that ASP.NET Core supports.
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## JavaScript client
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The [JavaScript client ](xref:signalr/javascript-client ) runs on NodeJS 8 and later versions and the following browsers:
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| Browser | Version |
| -------------------------------- | --------------- |
| Apple Safari, including iOS | Current† |
| Google Chrome, including Android | Current† |
| Microsoft Edge | Current† |
| Mozilla Firefox | Current† |
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† *Current* refers to the latest version of the browser.
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## .NET client
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The [.NET client ](xref:signalr/dotnet-client ) runs on any platform supported by ASP.NET Core. For example, [Xamarin developers can use SignalR ](https://github.com/aspnet/Announcements/issues/305 ) for building Android apps using Xamarin.Android 8.4.0.1 and later and iOS apps using Xamarin.iOS 11.14.0.4 and later.
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If the server runs IIS, the WebSockets transport requires IIS 8.0 or later on Windows Server 2012 or later. Other transports are supported on all platforms.
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## Java client
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The [Java client ](xref:signalr/java-client ) supports Java 8 and later versions.
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## Unsupported clients
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The following clients are available but are experimental or unofficial. They aren't currently supported and may never be.
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* [C++ client ](https://github.com/aspnet/SignalR-Client-Cpp )
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* [Swift client ](https://github.com/moozzyk/SignalR-Client-Swift )
