Open-source alternatives to HP Socket

Message-io is an event-driven networking library written in Rust that provides a unified message-based API for building applications across multiple transport protocols. It allows developers to handle communication over TCP streams, UDP datagrams, and WebSocket connections through a single interface, while managing underlying network connections, message transport, and low-level socket asynchrony. The library utilizes a single-threaded event loop architecture to process incoming connections, disconnections, network messages, and internal signals on a dedicated thread, eliminating traditional

evpp is a C++ network library and framework designed for building high-performance network services using TCP, UDP, and HTTP protocols. It provides an asynchronous event loop to manage nonblocking I/O operations and concurrent network connections across multiple threads. The framework includes specialized tools for asynchronous DNS resolution and a system for asynchronous task scheduling using a managed thread pool. It also features a nonblocking HTTP server and client with integrated connection pooling. The project covers low-level transport layer connectivity for TCP and UDP, as well as hi

This project is a C++ TCP server framework and educational socket programming guide. It provides a high-performance network library focused on event-driven architecture, implementing a reactor pattern to handle thousands of simultaneous client connections. The framework is distinguished by its multi-threaded event loop, which utilizes a main-sub reactor coordination model to distribute network events across a worker thread pool. It includes an abstraction layer for non-blocking socket I/O and event multiplexing via the epoll system call, decoupling network transport from application business

EventMachine is a reactor-pattern network framework for Ruby that provides an asynchronous I/O library for performing non-blocking network and file operations. It functions as a network server framework used to build scalable TCP and UDP servers and clients that process multiple simultaneous requests. The framework implements a concurrency model that dispatches network events to registered handlers using a single-threaded event loop. This approach allows for the management of high-concurrency network connections without the overhead of multi-threaded programming. The library covers the devel

Twisted is an event-driven networking engine for Python that provides a framework for building asynchronous network applications. At its core, it uses a reactor-based event loop to drive all input and output, dispatching callbacks in a single thread without blocking. The library implements a deferred promise chain for composing asynchronous logic, along with a protocol and factory pattern that separates connection state management from protocol handling, enabling reusable handlers for different network protocols. The framework supports multiple event loops across platforms, including select,

websocket-sharp is a C# library implementation of the WebSocket protocol used for building bidirectional client and server applications. It enables real-time data exchange between endpoints via persistent connections. The library provides specialized networking capabilities, including SSL encrypted networking for secure transport and certificate validation. It also features HTTP proxy tunneling to route traffic through intermediary servers using basic or digest authentication. The project covers a broad range of capabilities, including the implementation of both WebSocket clients and servers

This is a Socket.IO client library for Swift, providing an event-driven networking framework for establishing real-time, bidirectional communication between iOS applications and Socket.IO servers. It functions as a tool for maintaining persistent connections and exchanging named data events and binary payloads. The library implements a WebSocket-based transport with an HTTP long-polling fallback to ensure connectivity. It manages a callback-based architecture to handle server notifications and utilizes encrypted communication channels to secure network traffic. The framework covers the excha

Hiredis is a minimalistic C client library designed to send commands and receive responses from Redis servers using a binary-safe protocol. It functions as a core toolkit providing a Redis protocol parser, a secure connector, and both synchronous and asynchronous driver interfaces. The library distinguishes itself through a decoupled protocol parser that converts raw byte streams into structured data objects independently of the network transport layer. It supports high-performance pipelining to batch multiple commands into a single network round-trip and provides a secure networking layer fo

Netpoll is an event-driven network framework and non-blocking I/O library designed to manage concurrent TCP and Unix domain socket connections. It utilizes a non-blocking event loop to monitor file descriptors and trigger callbacks for read and write events, serving as a high-performance socket manager and TCP network poller. The framework optimizes throughput across CPU cores by distributing incoming network connections across multiple pollers. It implements zero-copy networking primitives, using linked buffers and specialized memory management to read and write data while minimizing memory

TCP-IP-NetworkNote is a comprehensive technical reference and guide for implementing network communication using TCP and UDP sockets in C and C++. It provides a detailed manual for using the POSIX socket API and covers the implementation of network protocols, synchronous and asynchronous I/O patterns, and concurrent programming models. The project is distinguished by its focus on cross-platform networking, offering a detailed comparison of socket implementation details and adaptation utilities between Linux and Windows Winsock environments. It specifically addresses the differences in header

VitamioBundle is an Android media player library and playback framework designed for decoding and rendering high-performance audio and video content. It provides a hardware-accelerated video decoder to reduce CPU load and battery consumption on mobile devices. The project includes an adaptive bitrate streaming client that adjusts video quality in real-time based on network conditions to prevent playback interruptions. It also features a video rendering engine capable of configuring pixel formats and chroma output to optimize visual quality for mobile displays. The library covers broad multim

Gevent is a Python coroutine concurrency library and asynchronous task manager designed for high-concurrency I/O tasks. It provides a cooperative networking framework for building asynchronous TCP, UDP, and HTTP servers, as well as a WSGI web server implementation for hosting web applications. The project is distinguished by its standard library monkey-patching tool, which replaces blocking synchronous functions with cooperative versions to enable asynchronous behavior in third-party code. This allows for a cooperative multitasking workflow where the system yields execution during I/O waits t

Cowboy is a high-performance HTTP server for Erlang and OTP. It is designed to handle web traffic with low memory usage and can be used as a standalone server or as an embedded networking library integrated directly into an existing application. The project implements modern transport protocols, including HTTP/3, QUIC, and WebTransport, to enable faster connections and bidirectional data streaming. It also functions as a real-time communication server supporting Server-Sent Events for pushing asynchronous updates to clients. Broad capabilities include path and content-type based request rout

This project provides a containerized Ubuntu desktop environment with a graphical user interface accessible via a web browser. It implements a Docker-based image that integrates a web gateway and a browser-based client to stream a Linux workstation over HTTP and HTTPS. The system is distinguished by its ability to route audio from the container to the host system for playback and its support for SSL/TLS encryption to secure the remote desktop connection. It also includes configurations for hosting the interface behind a reverse proxy using relative URL path mapping. The project covers displa

This project is a technical study and analysis guide focused on the internal architecture of Node.js. It provides an in-depth examination of the runtime, focusing on how the engine manages memory handles, executes asynchronous operations, and implements core module logic. The guide specifically analyzes the integration of native C++ classes and functions into JavaScript and documents the behavior of the libuv event loop. It includes detailed references for optimizing performance by identifying V8 compiler bailouts and profiling execution to improve resource efficiency. The material covers a

This project is a learning guide and collection of study notes designed to teach Node.js backend development. It provides a comprehensive core API reference and practical demonstrations for implementing server-side logic, network programming, and system APIs. The guide specifically covers advanced technical domains including process management for scaling applications via clusters and child processes, as well as network programming for building TCP, UDP, and HTTP services. It also includes detailed instructional material on security implementation, focusing on cryptographic hashing and encryp

This project serves as a comprehensive tutorial and technical resource for developing network applications in the C programming language. It focuses on the practical application of the Berkeley socket interface, guiding users through the implementation of low-level network protocols and the management of data transmission across both connection-oriented and connectionless streams. The material distinguishes itself by covering the full lifecycle of network communication, from initializing system-level protocol stacks and resolving domain names to managing complex connection behaviors. It provi

Typhoeus is a Ruby wrapper for libcurl that functions as a session-based HTTP client. It provides an interface for making both synchronous and asynchronous network requests. The project acts as a parallel request manager, using a managed queue to execute multiple network requests concurrently. It further distinguishes itself as a mocking tool for stubbing requests with predefined responses and as a caching layer that stores responses to avoid redundant network calls. The library covers a broad range of capabilities including session cookie management, response body streaming for large files,

This project is an instructional repository and learning resource providing a comprehensive collection of study notes, programming guides, and runnable source code examples. It serves as a guide for Java SE and Java web development, featuring a library of code samples that demonstrate common algorithms and technical implementations. The repository focuses on language core and runtime analysis, with detailed tutorials on multithreading and concurrency. It provides practical implementations of software architecture and design patterns, such as the singleton and strategy patterns, as well as exp

Kore is an event-driven web and WebSocket server framework designed for building high-performance web services and APIs in C or Python. It functions as a secure, concurrent application framework that utilizes non-blocking I/O and isolated worker processes to handle high-concurrency traffic. The project is distinguished by a security-first architecture that features OS-level process sandboxing, privilege separation, and the isolation of private encryption keys into dedicated processes. It enables zero-downtime deployments through dynamic module hot-reloading and provides automated TLS certific

Reticulum is a decentralized networking stack that enables encrypted, peer-to-peer communication over diverse physical mediums without relying on central infrastructure or IP protocols. It uses self-sovereign cryptographic identities for routing and authentication, replacing traditional IP addresses with collision-free globally unique addresses that require no central coordination. Every packet is encrypted by default using ephemeral key exchanges with forward secrecy, and unencrypted traffic is dropped as invalid. The stack unifies heterogeneous transport mediums—including LoRa radio, packet

Workerman is an event-driven asynchronous socket framework for PHP. It provides the core components necessary to build high-concurrency network servers, including an asynchronous TCP framework, a coroutine library for task management, and dedicated implementations for HTTP and WebSocket servers. The project enables the development of specialized network services using custom frame-based communication protocols. It supports both inbound concurrent server implementation and asynchronous outbound connectivity to remote services. The framework covers a broad range of network programming capabili

SuperSocket is a .NET socket server framework designed for building network servers and custom communication protocols. It functions as a pipeline-based network engine and a server for TCP, UDP, and WebSocket protocols. The framework provides a socket session manager to track and control the lifecycle of network connections and client request states. It enables the implementation of bespoke communication standards and the development of socket proxies. The system handles concurrent client connections and processes network traffic through a structured architecture of pipeline filters, middlew

Forge is a JavaScript cryptography library providing a comprehensive set of tools for symmetric and asymmetric encryption, hashing, and digital signatures. It includes a full Transport Layer Security implementation for establishing secure network connections and managing encrypted traffic. The project implements a wide array of public key infrastructure tools, including X.509 certificate management, the generation of certificate signing requests, and the validation of certificate chains. It provides a PKCS cryptographic toolkit for handling secure archives and signed messages, alongside suppo

Xray-core is a high-performance, cross-platform networking engine designed to manage secure data transmission and traffic routing. At its core, the project utilizes an asynchronous, event-driven runtime model capable of handling thousands of concurrent connections through non-blocking input and output. It functions as a central traffic controller, employing a sophisticated routing engine that dynamically matches incoming network requests to specific outbound proxies based on user-defined criteria. The project distinguishes itself through a modular architecture that decouples proxy and transpo

Muduo is a C++11 event-driven network library and framework designed for building high-concurrency Linux servers. It provides a toolkit for implementing scalable network services and socket communication using non-blocking I/O and asynchronous event processing. The framework implements a multi-threaded TCP server architecture that distributes connection handling across multiple CPU threads to maximize server throughput. This is achieved through a one-loop-per-thread model and a reactor pattern implementation, which dispatch network events from a central demultiplexer to registered handler fun

DotNetty is an asynchronous network framework and event-driven networking library for .NET. It is a port of the Netty architecture designed for building high-performance protocol servers and clients. The framework enables the development of network applications that handle concurrent connections and high-throughput data streaming without blocking execution threads. It supports the implementation of custom network protocols through defined encoding and decoding rules. The library utilizes a pipeline-based processing model and non-blocking I/O to manage network traffic. Its architecture incorp