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 and PF_RING.

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.

VKit - Tools and Scripts for Linux VPS

Python-based Comprehensive Network Packet Analysis Library

A Docker image with various network tools pre-installed.

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

ClashFX — macOS proxy tool with Enhanced Mode (TUN)

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

DNS Ping: to check packet loss and latency issues with DNS servers

Professional Terminal Start Page is a sleek, customizable browser start page built around an interactive terminal. It combines productivity tools like semantic AI routing, Gemini integration, real-time weather, and network utilities with a premium aesthetic and multiple themes. Designed for speed and flexibility.

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.

v1ew-s0urce a recon tool built by the 5/9Dark team.

This is a multipurpose tool which is useful in networking or network hacking.

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

A Linux tool to limit the bandwidth of any device on your local network, no router access required.