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A simple, modern, and high-performance .NET networking framework

Documentation · Getting Started · API Reference · Examples

TouchSocket is an integrated .NET networking framework covering TCP / UDP / WebSocket / HTTP / MQTT / Modbus / RPC / MCP and more. It ships with a memory pool, data-adapter pipeline, plugin system, DI / Hosting integration, and source generators.

Whether you are building a TCP server, an industrial device gateway, or an AI tool based on MCP, TouchSocket provides a unified API to get you there quickly.

All NuGet packages starting with TouchSocket. are fully open-source and free for personal/commercial use. The TouchSocketPro. line requires a commercial license.

dotnet add package TouchSocket

var service = new TcpService();
service.Received = (client, e) =>
{
    Console.WriteLine($"Received: {e.Memory.Span.ToString(Encoding.UTF8)}");
    return EasyTask.CompletedTask;
};
await service.StartAsync(7789);

var client = new TcpClient();
client.Received = (c, e) =>
{
    Console.WriteLine(e.Memory.Span.ToString());
    return EasyTask.CompletedTask;
};
await client.ConnectAsync("127.0.0.1:7789");
await client.SendAsync("Hello");

client.ConfigurePlugins(a => a.UseReconnection<TcpClient>());

More examples are in examples.

Stress test: 100k messages × 64KB — TouchSocket achieves up to ~10× the throughput of traditional implementations.

Named-pipe simple send/receive reaches 6.5 Gb/s, about 3× faster than TCP, with negligible GC.

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TouchSocket is licensed under Apache License 2.0. All TouchSocket.* NuGet packages are free for personal and commercial use.

The TouchSocketPro.* line is commercially licensed. See Pro Edition for details.

• CSDN Blog
• Bilibili Videos
• QQ Group: 234762506

TouchSocket is a member of the dotNET China organization.