Open-source native macOS HTTP debugging proxy — intercept HTTPS, inspect APIs, mock responses, debug WebSocket & GraphQL. Community-driven. For developers, by developers.

Charles Proxy MCP server for AI agents with live capture, structured traffic analysis, and agent-friendly tool contracts

Inspect, mock and reshape HTTP/S traffic on macOS. Free, public-domain, native — the modern Proxyman alternative, built on mitmproxy.

Modern, cross-platform netcat alternative written in Go with enhanced features for network communication, debugging, and security testing.

Fatbeans.MCP.Client 是独立的控制台客户端，用于从命令行、脚本、外部进程或 AI Agent 调用Fatbeans Creater提供的MCP工具服务。

通信调试，TCP调试，串口调试，通信协议调试，设备通信仿真

MQTT connectivity lab: throttle, flake, and observe client resilience.

CLI utility to check DNS propagation using multiple DNS servers

How to set up proxy on Android via Wi-Fi, APN, ADB system-wide, and app-level OkHttp. Working HTTP and SOCKS5 code samples for Android proxy server setup, tested on Android 12 through 15.

Diagnostic toolkit for network egress issues — detect proxy misconfigurations, DNS leaks, and connectivity problems

Awesome Network Debugging

A bridge that connects VPP (Vector Packet Processing) interfaces with Wireshark, enabling real-time packet capture and analysis. Supports remote monitoring via UDP and Unix sockets with a Wireshark extcap interface.

curldbg is an HTTP request debugger written in C.

Lua NATS dissector for Wireshark with JetStream parsing and rich traffic insights.

Surge is a powerful and flexible network management tool designed to optimize, monitor, and debug your internet connections.

GhostWall · 鬼打墙 — 侦测终端里的幽灵端口。零依赖 Python TUI 工具，一键找出环境变量中指向已死端口的代理配置。

Wireshark is a leading tool for network traffic analysis, widely used for education, research, and troubleshooting. 🌐🔍

A lightweight CLI HTTP debugging proxy written in Go, designed for developers to inspect, filter, and log HTTP/HTTPS traffic directly from the terminal.

Modern Swift network-debugging library — a SwiftUI rewrite of Wormholy with Swift 6 strict concurrency, actors, and URLSession delegate proxying.