Free, open-source utility for network security auditing and exploration with capabilities for OS detection, service identification, and large network scans.


Free, open-source utility for network security auditing and exploration with capabilities for OS detection, service identification, and large network scans.






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




Zenmap is the official cross-platform GUI for the Nmap Security Scanner. It is free and runs on Linux, Windows, Mac OS X, etc. Zenmap aims to make Nmap easy for beginners to use while providing advanced features for experienced Nmap users.



Reliable and free network scanner to analyse LAN. The program shows all network devices, gives you access to shared folders, provides remote control of computers (via RDP and Radmin), and can even remotely switch computers off. It is easy to use and runs as a portable edition.

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



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




Identify system vulnerabilities with automated assessments and prioritize remediation through a scoring system, offering guidance for all experience levels.




NETworkManager is a powerful tool for managing networks and troubleshoot network problems! It includes a variety of tools such as an IP scanner, Port Scanner, Ping Monitor, WiFi analyzer, PuTTY/RemoteDesktop with tabs or an LLDP/CDP capture (and many more) in a unified user...




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.




This fast, highly configurable IPv4/IPv6 scanner can streamline many of your network support procedures. Its well-designed interface, light weight and portability coupled with an extensive range of options and advanced features make SoftPerfect Network Scanner an invaluable...








Free DNS related tools including Reverse IP Lookup, DNS Propagation Checker, Chinese Firewall Test, DNS Report and more!
This is the fastest Internet port scanner. It can scan the entire Internet in under 6 minutes, transmitting 10 million packets per second.

ZMap is a fast single packet network scanner designed for Internet-wide network surveys. On a typical desktop computer with a gigabit Ethernet connection, ZMap is capable scanning the entire public IPv4 address space in under 45 minutes.


We facilitate quick discovery and reporting of vulnerabilities in websites and network infrastructures, providing a set of powerful and tightly integrated pentesting tools that enable you to perform easier, faster, and more effective pentests.




External IP Address lookup tool with option to scan the external IP address. Uses Nmap Port Scanner and also does geolocation.
runZero provides asset inventory and network visibility for security and IT teams. You can discover your entire inventory including managed and unmanaged devices, on-premises and cloud assets, IT and OT infrastructure, endpoints at work and at home.




Nsauditor Network Security Auditor is a network security scanner that allows to audit and monitor network computers for possible vulnerabilities, checks your network for all potential methods that a hacker might use to attack it.

Learn about our vulnerability management software, Nexpose. See how our vulnerability scanner prioritizes vulnerabilities and speeds up remediation.
IP Scanner for Macintosh scans your local area network to determine the identity of all machines and internet devices on the LAN. Powerful results, yet easy and intuitive to use. Runs on OS X 10.4 and above.




Proc Net Monitor is the FREE software to monitor & analyze the Network activity of all running Process on your system.
It shows all open network Ports (TCP/UDP) and active Network Connections for each process.



Now you can run a CVS, DHCP, DLNA, DNS, Dynamic DNS, Email (POP3 / SMTP), FTP Proxy, FTP, FTPS, Git, IRC, ISCSI, MySQL, NFS, NTP, PHP and Lighttpd, Port Forwarder, Proxy, Remote Control, Rsync, SMB/CIFS, SMS, Socks, SFTP, SSH, Stomp, Styx, Syslog, TFTP, Telnet, Test, Time...




CloseTheDoor indentifies all the listening ports TCP/UDP over IPv4/v6 and the associated program files. This will help you to detect security holes and close backdoors when you want to prevent remote attacks.


