network-tools

SpeedTest by OpenSpeedTest™ is a Free and Open-Source HTML5 Network Performance Estimation Tool Written in Vanilla Javascript and only uses built-in Web APIs like XMLHttpRequest (XHR), HTML, CSS, JS, & SVG. No Third-Party frameworks or libraries are Required. Started in 2011 and moved to OpenSpeedTest.com dedicated Project/Domain Name in 2013.

PcapPlusPlus is a multiplatform C++ library for capturing, parsing and crafting of network packets. It is designed to be efficient, powerful and easy to use. It provides C++ wrappers for the most popular packet processing engines such as libpcap, Npcap, WinPcap, DPDK, AF_XDP, WinDivert and PF_RING.

瞬息洞察 IP 纯净底色与风险评级。仅需一键探寻，物理坐标、机房源流与代理轨迹尽收眼底。一站式 IP 与网络诊断工具箱：查询归属、ASN、信誉与风险，检测网络出口、DNS/CDN、浏览器指纹与 WebRTC，聚合 AI 服务状态。

Network Security Sniffer

Ronin is a Free and Open Source Ruby Toolkit for Security Research and Development. Ronin also allows for the rapid development and distribution of code, exploits, payloads, etc, via 3rd-party git repositories.

月海 (Sea Moon) 是一款 FaaS/BaaS 实现的 Serverless 网络工具

Cross platform network analysis and monitoring tool

A PHP class to ping hosts.

Network Doctor is a cross-platform network troubleshooting TUI that turns interface, DNS, TCP, TLS, HTTP, proxy, and path-MTU checks into one plain-English diagnosis.

VKit - Tools and Scripts for Linux VPS

htop for your ports. Inspect processes, Docker & systemd, detect port drift, audit Compose, and manage it all from TUI, Web or Cockpit.

ClashFX — macOS proxy tool with Enhanced Mode (TUN)

Free Wi-Fi heat map and site survey app for macOS, Windows and Linux: map coverage, find dead zones, measure real speed with iperf3"

Python-based Comprehensive Network Packet Analysis Library

Powerful network toolset packed into an Android app. Gathers and displays the information about the Wi-Fi network environment! 📱✨

A Docker image with various network tools pre-installed.

Who do websites think you are? A privacy self-check: every sniffer any site can run, the portrait they paint, and the contradictions that give away a VPN or proxy

A network scanner tool, developed in Python 3 using scapy.

macOS menu-bar app for fine-grained VPN routing: bypass the VPN for chosen domains/services, force others through it, or (Custom mode) route each domain/subnet out a specific egress — direct, a specific VPN, an HTTP/SOCKS5 proxy, or a Tailscale peer. Includes a vpnb CLI.

Cross-platform DNS benchmarking, diagnostics, and one-click switching for Windows and Linux.