Network Tools

Portmaster is a free and open-source privacy suite that puts you back in charge of your computer.

Measures download, upload, and ping speeds; offers global server testing, real-time connection graphs, VPN options, carrier coverage maps, and test result history.

Self-hosted Speedtest for HTML5. Easy setup, examples, configurable, mobile friendly. Supports PHP, Node, Multiple servers, and more.

Visualizes network activity, alerts on suspicious behavior, manages firewall rules, reports new app connections, and identifies potential threats.

Network scanner discovers devices, monitors ISP performance, sets security checks. Use advanced tools to analyze settings and find hidden cameras.

A modern libadwaita-based network scanner for GNOME that helps you discover devices on your local network.

Powered by Netflix, Fast.com estimates your current download speed. You will generally be able to get this speed from leading internet services, which use globally distributed servers.

Fast Android port scanner providing network information and quick host discovery. Designed for systems and network security with real-time insights.

Easily switch between up to 6 network profiles with support for IP, DNS, gateway, WINS, printer, network drives, NIC status, scripts, and more for Windows.

A lightweight, highly customizable system tray application that monitors and displays real-time network speeds for Windows.

Lansweeper discovers Windows, Linux and Mac machines in your network. In addition, it inventories network devices such as Printers, Routers and Switches.

PingPlotter is a graphical traceroute and ping tool that visualizes network performance in a way that makes identifying the source of problems quicker and easier.

This software designed to bypass Deep Packet Inspection systems found in many Internet Service Providers which block access to certain websites.

Technitium MAC Address Changer allows you to change (spoof) Media Access Control (MAC) Address of your Network Interface Card (NIC) instantly.

NetIP is an open-source Windows utility software that provides quick access to your computer network information.

NetStumbler is a tool for Windows that allows you to detect Wireless Local Area Networks (WLANs) using 802.11b, 802.11a and 802.11g. It has many uses:Verify that your network is set up the way you intended, find locations with poor coverage in your WLAN, detect other networks...

Ping Tracer continuously pings each network host between your computer and a given destination, helping visually identify the source of connectivity problems.

Advanced Port Scanner is a fast and free software for port scanning. It will allow you to quickly find all open ports (TCP and UDP) and detect versions of programs running on them. The utility includes many features simplifying network management.

Live data rate chart. Network usage history (statistics). Quota counter (limit usage meter). Works with every network connection. Multi-language. Installer & portable. Lightweight. Freeware.

mtr combines the functionality of the 'traceroute' and 'ping' programs in a single network diagnostic tool.

NetCut is a Tool helping Discover who is on your wireless/Wire network instantly. (IP/Device name/MAC address), Iphone/Xbox/Wii/PS3andriod/andriod

All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name. Links in the results will guide you to other relevant tools and information.

vmPing (Visual Multi Ping) is a graphical ping utility for monitoring multiple hosts. Numerous host monitors can be added and removed, and each monitor dynamically resizes with the application window. Color-coding allows you to tell at a glance the status of each host.

Munin is a networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems. It is designed to be very plug and play. A default installation provides a lot of graphs with almost no work.

Tftpd32 is a free, opensource application which includes DHCP, TFTP, DNS, SNTP and Syslog servers as well as a TFTP client.