Free Portable network tools for diagnosing, monitoring, and troubleshooting network connections. Run directly from a USB without installation for on-the-go networking solutions.
Wireless Network Watcher is a free and portable network scanning utility that helps you identify devices currently connected to your wireless network. This lightweight WiFi monitoring tool quickly scans your local network and displays a list of connected computers, smartphones, routers, smart TVs, and other devices, making it useful for monitoring wireless activity and spotting unknown connections.
Advanced IP Scanner is a free and portable network scanning utility that quickly analyzes local networks to identify connected devices, open ports, shared folders, and active services. Designed for both home users and IT professionals, this lightweight LAN scanner helps troubleshoot network issues, discover unknown devices, and manage computers remotely without requiring installation.
Because it runs directly from a USB flash drive, Advanced IP Scanner is especially useful for technicians working across multiple systems. Its fast scanning engine provides an instant overview of network activity, making it one of the easiest ways to inspect devices connected to a local network.
DNS Jumper is a free portable DNS switching tool that allows users to quickly change DNS servers without manually modifying network settings in Windows. It simplifies the process of switching to faster, safer, or custom DNS providers with just a few clicks.
WakeMeOnLAN; A portable free Wake On LAN (Local Area Network) tool. Ever wanted to turn on a computer remotely? This utility can do just that by sending a (WOL) Wake Over LAN packet to your remote computers.
BluetoothLogView is a Free and Portable Bluetooth Monitoring Tool created by NirSoft. It can be used to monitor nearby Bluetooth activity (Find Bluetooth Devices Near You). Once running, it keeps a log of each Bluetooth device it detects. Whenever a Bluetooth device arrives or leaves Bluetooth detection range, a new log line is created containing the Devices Name, Description, Address, Event Time, Event Type and Time, Major and Minor Device Type, and Manufacturer.
WebCookiesSniffer is a packet sniffer tool created by NirSoft that can be used to view or capture cookies from the sites you visit and view them in a cookies table. The cookie string and the host or site that sent or received each cookie is displayed in the top section. When you select a cookie string from the upper panel, the cookie string is parsed and displayed as name value format in the bottom section.
Complete Internet Repair is a no nonsense portable tool created by rizonesoft. As the name suggests, it can be used to attempt to fix or repair any internet related problems with your computer, including network problems. This tool can be particularly handy if you happen to experience one of the following situations.
DomainHostingView is a Free Portable WHOIS Domain Lookup tool. It can be used to View Domain Hosting Information for any Website Domain. Information such as the domain name owner, domain name registrar, created changed and expire dates, web and mail server hosting company, domain name server and all DNS records, etc.
DNSDataView is a Free DNS Lookup tool. This data checking software can be used to check the IP address DNS records (MX, NS, A, SOA) of domains or Lookup Domain Host. It provides users with an ability to specify a DNS server and then the retrieved DNS records can be exported to a text, xml, html or csv file.
Simple Ping is as the name suggests, a Ping tool created by PCWinTech. It enables you to keep an eye on your internet ping by pinging a select I Address, so that you can tell if any slow loading problems are related to your ping. Simple Ping sports a few settings that can be adjusted to suite your needs.
MyIP is a free and portable tool used to get and display your current Internet IP address. The Internet Protocol (IP) is the standard used for addressing and routing data across the Internet. This lightweight utility also shows local IP addresses assigned to the first three network adapters of your PC. Both the LAN and WAN IP addresses can easily be copied and pasted into other programs.
Nassau is a Free and Portable Network Connection Viewer Utility created by run.to/sz. It can be used to View, List, or Display All Network Connections and starts minimized to the taskbar. Connection information such as the IP, Gateway, and DNS server of each Network Adapter is listed in a structured window for the listed user/computer.
Mac MakeUp is a Mac Address Changing Tool created by Marcello Gorlani. It enables you to change the MAC address Spoof MAC Address of any network interface controller NIC on your Windows PC. Very useful if you wish to be assigned a new IP on a cable network, as the IP is typically assigned to the MAC address of the NIC that is directly connected to the cable modem, and will try to reclaim that same IP so long as the MAC address is the same.
RouterPassView is a Portable Router Password Recovery Tool created by NirSoft. It works by attempting to find your Login Password and or Wireless Keys from your backup router configuration file. Note that you must have a backup configuration file for RouterPassView to read, and not every router configuration file is supported, however I have found that most of the popular older Routers are.
Get My IP is a Portable and Free IP Address Retrieval Tool. It can be used to display your Local Internal (LAN) IP Address as well as your Internet External (WAN) IP Address. Very useful if you host games or share applications via a LAN or over the Internet and need quick reference to both internal and External IP Addresses for Port forwarding etc.
Free IP Scanner is a lightweight portable network scanning utility that can quickly scan local networks and display information about connected devices. It helps identify active systems by showing IP addresses, MAC addresses, hostnames, and open ports across a selected IP range.
The tool is commonly used for network troubleshooting, device discovery, and basic network monitoring on home or office networks.
HeidiSQL offers a Portable Freeware SQL Database Manager. A very useful Remote SQL Software tool for users who want to remotely manage their MySQL Databases from any PC. Browse databases, manage tables, run queries, execute scripts, etc. Pretty much everything you can do with server side SQL managers like phpMyAdmin, can be done remotely and portably with this tool.
SqlDbx is a Stand Alone Free SQL Manager or SQL Frontend created by ACS Technologies, inc. A database management tool (SQL IDE) that provides a means to manage your SQL databases to run queries, execute scripts and browse database objects. A portable SQL Database Editor that requires no installation. It is entirely free for non-commercial use.
Simple Port Forwarding is a Freeware Portable Network Routing Tool created by PCWinTech. It can be used to control Router Port Forwarding options directly from the tool. Simple Port Forwarding supports the most popular routers on the market. It also has built in port setting options for many P2P programs, games and other commonly used applications, virtually eliminating the need to research which ports need to be forwarded.
NetRouteView is a Portable Network Route Viewer for Windows. Created by NirSoft, it lists the currently active routes on your network. NetRouteView can display destination, mask, gateway, interface IP address, metric value, type, protocol, age, interface name, MAC address and more. Additional features include the ability to add new routes, and modify or delete existing routes.
Wireshark is a Free and Portable Network Protocol Analyzer. It can be used to capture and examine network traffic (packet data) from a live running network. Cool options such as display filters are available to help isolate the network traffic sections you wish to monitor. If you have ever needed to find out exactly what information is being sent to and from your computer and where this information is being sent to or coming from on a network or over the internet, you need Wireshark.
IPInfoOffline is a Free Portable Software that allows you to view detailed information about IP addresses, without connecting to a server on the net. Created by Nirsoft, IPInfoOffline queries a built in database containing information about each IP address. IP block range, Organization, Assigned Date, Country Name, and Country Code are displayed. This information can then be copied to a clipboard, or saved to a xml, html, csv or text file for future reference.
MACAddressView is a Portable and Free MAC Address Tool. It can be used to lookup MAC addresses and find MAC address information for network adapters. Information such as company details (company name, address, and country) by the MAC address of the product. It utilizes its own internal MAC addresses database to display the information about the MAC address.
Connection Monitor is a free, standalone portable utility that lets you monitor inbound and outbound socket connections in real time. By showing exactly which network and internet connections are active, it helps you better understand and secure your system.
This lightweight tool scans current connections and displays detailed information including local and remote addresses, ports, protocol type (TCP or UDP), and connection status. It is especially useful for troubleshooting network activity or identifying unknown connections.
VB Ping is a Free Portable Ping tool that enables users to quickly and easily Ping an IP Address while logging the Ping results. VB Ping can be run in either manual mode or automatic mode and can log Date, IP Address, Data Sent, Return Status, Address (dec), Round Trip Time, Data Packet Size, Data Returned, and Pointers. Number of pings can be set between 1-10000 and a timer or delay of between 5-120 seconds can be determined.
Network Stuff is a Free Portable Network Tool that can be used to perform various network diagnostic functions to ensure that your network and routes are all working properly. Popular features include Telnet, Ping, Traceroute, Whois, DNS resolver, retrieve MAC addresses, retrieve IP addresses, view TCP/UDP/ICMP stats and more. This can be a very handy network diagnostic tool to have with you in your arsenal.
LAN Search Pro is a free Portable File Search tool that enables users to quickly search for specific file names or file types across an entire LAN (local area network). Once files have been found, the user can open and view, move, copy or rename the items.
PuTTY Portable: Secure SSH Client and Terminal Emulator: PuTTY Portable is the portable version of the widely used Telnet, Rlogin, and SSH client, PuTTY. As an open-source terminal emulator, it serves as a serial console and network file transfer tool, supporting multiple protocols, including SSH, Telnet, and SCP. It is indispensable for system administrators and network engineers who require secure connections to remote servers or devices, particularly Unix/Linux systems, directly from Windows computers.
WirelessNetView is a Free Portable Wireless Network Monitor that can be used to detect and monitor any wireless networks that may surround you. This application can be stored and run entirely from a portable USB device. When a wireless network is detected, the SSID, MAC address, signal quality, channel frequency and number, detection counter, RSSI, authentication algorithm, and cipher algorithm can be retrieved and displayed.
BluetoothView is a Free portable application that can be used to detect and view any Bluetooth activity surrounding you. If a Bluetooth device is detected, BluetooothView will display the name, address, device type, and detection times. The tool can be setup to notify users when a new Bluetooth device is detected, by displaying a notification in your task bar or by playing a sound. This tool runs in the background and can be stored and launched from a portable device.
WirelessKeyView is a Free portable tool created by NirSoft that can be used to recover lost Network Keys. It recovers all wireless network keys (WEP/WPA) that have been stored in your PC via the Wireless Zero Configuration service of Windows XP or the WLAN AutoConfig service of Windows Vista. You can either copy individual keys to the clipboard or export all keys to a text, xml or html file.
KiTTY Portable: A feature rich portable SSH client: KiTTY is a free, open source TTY SSH, Telnet, and Rlogin client designed for Windows operating systems. As a fork of the widely used PuTTY client, it introduces enhanced features and functionalities tailored to meet the needs of advanced users and system administrators. Its portability allows you to carry your SSH client and settings on a USB drive, making it a convenient tool for professionals on the go.
NetSetMan is a compact and powerful FREE portable network manager tool designed for users who frequently switch between different network environments. Whether you're a student commuting between campus and home, a business professional working in multiple office locations, or simply someone with varied network setups, NetSetMan makes network management effortless.
TCPView is a lightweight and portable Windows network monitoring tool that provides a comprehensive real time overview of all active TCP and UDP network connections on your system. Developed by Microsoft’s trusted Sysinternals team, it displays detailed connection data along with the exact process names responsible for each network endpoint.
Compared to the built in Windows Netstat utility, TCPView delivers significantly more insight through a clean graphical interface. For command line users, it also includes a console based companion called Tcpvcon, which offers equivalent functionality without a GUI.
FollowMeIP is a FREE Portable IP tool that can be used to quickly display your external IP address for reference. It works even if your computer system is behind a firewall or router and can be docked in the taskbar for quick retrieval. Very useful for monitoring your broadcasted IP address for game servers and other services. This application requires only 152KB of free space for completely portable installation.
Angry IP Scanner is a free, open source, and fully portable network IP scanner designed to quickly detect active devices, resolve hostnames, and scan for open ports across local or remote networks. Widely used by network administrators, IT technicians, and security professionals, this lightweight utility combines speed, simplicity, and portability into a powerful diagnostic tool.
Available for Windows, Linux, and macOS, Angry IP Scanner can run directly from a USB flash drive without installation, making it ideal for portable network troubleshooting and device discovery.
SoftPerfect Network Scanner is a portable IP, NetBIOS and SNMP scanner that supports remote shutdown and Wake On LAN. It was created for system administrators and users who are interested in heightened computer security. The network scanner works by pinging a computer scanning it for listening TCP ports. It can display any resources that are being shared on a network.
SmartSniff is a powerful, free, and portable network packet sniffer and TCP/IP packet capture program that allows you to monitor all traffic, open ports, and more passing through your computer's network adapter. Unlike many similar tools, it doesn't require installation or even a capture driver, making it an excellent choice for IT professionals and network enthusiasts who value portability and convenience. You can even run it directly from a USB flash drive, adding to its versatility.
WhoisThisDomain is a simple stand alone tool that will allow the user to collect and display all available owner and registration information for any registered domain. It supports generic domains as well as country code domains. This utility will automatically connect to the correct WHOIS server and retrieve and display the WHOIS record of the selected domain.