18 Best C# Networking Libraries 2023

Here are some of the famous C# Networking Libraries. C# Networking Libraries use cases include Building a Chat Application, Building an Online Multiplayer Game, building a Networked File Sharing Application, building a Networked Database Application, and Building a Networked Streaming Media Application.  

C# networking libraries are the collection of classes and functions used to develop C# programming language network applications. These libraries provide functionality such as networking protocols, data transfer, encryption, and data storage. Examples of C# networking libraries include the .NET Framework Network Classes, System.Net, and OpenNETCF.  

Let us have a look at these libraries in detail below. 

mRemoteNG 

• Supports many protocols such as RDP, VNC, SSH, Telnet, HTTP/HTTPS, and ICA/HDX. 
• Rich plugin system to extend the functionality of the application. 
• Powerful scripting engine to automate common tasks. 

websocket-sharp 

• Supports the latest websocket protocol specifications. 
• Supports compression of websocket frames using the Per-Message Deflate extension. 
• Actively maintained and regularly updated with new features and bug fixes. 

protobuf-net 

• Serialization and Deserialization. 
• Compact Binary Format. 
• Supports Multiple Platforms. 

DotNetty 

• Event-driven API. 
• Protocol Agnostic. 
• Built-in Pipeline. 

NETworkManager 

• Built-in packet inspection tool that can be used to troubleshoot and diagnose network problems.  
• Powerful tools for developers, such as a network traffic simulator. 
• Allows users to configure, monitor, and control their network traffic quickly. 

Mirror 

• High-performance, extensible, and lightweight. 
• Designed to be platform-agnostic. 
• Supports Unity’s built-in Networking. 

surging 

• High-performance TCP/IP networking stack. 
• Pluggable architecture that allows developers to easily customize and extend the library to meet their specific needs. 
• Provides a range of built-in security features. 

BruteShark 

• Supports many protocols such as HTTP, FTP, SMTP, DNS, and SSL/TLS.  
• Integrated packet capture engine to capture network traffic and save it in various formats.  
• Monitor multiple networks simultaneously and can detect MITM attacks. 

LiteNetLib 

• Supports both client-server and peer-to-peer architectures. 
• Provides reliable UDP messaging with the help of its own packet fragmentation and reassembly mechanism.  
• Supports automatic NAT punchthrough for connecting to peers behind a firewall or router. 

MQTTnet 

• Supports SSL/TLS encryption and authentication. 
• Provides native support for Windows, Linux, and macOS platforms. 
• Includes an integrated logging framework. 

LOIC 

• Allows the user to select from a variety of attack types. 
• Includes a graphical user interface. 
• Includes a feature called “Hive Mind”, which allows users to join a “hive” and send requests in unison with other users. 

SteamKit 

• Support for various languages, including C#, C++, and JavaScript. 
• Highly extensible and can be used to create custom network protocols for games.  
• Various functions are designed to facilitate communication between applications and the Steam network. 

NetCoreServer 

• Flexible API. 
• Robust Security.
• Cross-Platform Compatibility. 

DotNetOpenAuth 

• Provides strong cryptography algorithms and secure communications protocols. 
• Written in C#, it is easy to port to other platforms.  
• Allows developers to extend the library for their specific use cases. 

lidgren-network-gen3 

• Binary Serialization. 
• Peer-to-peer Networking. 
• Reliability. 

BeetleX 

• Built-in support for Cross-Origin Resource Sharing (CORS). 
• Deep integration with the .Net Core platform. 
• Provides an asynchronous, non-blocking programming model with no callbacks and no threads. 

BedrockFramework 

• Provides a distributed object model that allows for objects to be shared across different instances without creating extra copies.  
• Provides a unique set of tools for debugging and monitoring network traffic and performance. 
• Allows for a more robust and reliable system than other libraries written in other languages.   

EvilFOCA 

• Spoofing allows users to hide their IP address when making network requests.   
• The port scanning feature allows users to scan for open ports on a network.  
• The mapping feature allows users to map a network and identify various devices, services, and connections.