Open Source Port Scanners

NetComp Scan comes with 7 tools to make life easier ComputerInfo - Allows you to get basic information from remote computer including last logged on user, storage device info, time since last restart, and installed programs. IP info - Ping allows you to get your computer IP information including public IP and also allows you to ping like cmd. MAC Changer - Changes MAC with option to revert to default. Ping Sweep - Sweeps a specified network range and returns online devices. Port Scanner - Scans a specified port range on a networked device and returns open/ closed ports. Uptime Monitor - Add multiple hosts and monitor real time "online" status with easy to see color scheme. Wifi Scan - Scan for wifi AP's and list all devices found. AP's are discovered by BSSID so you can see every AP around you. This tool also allows you to create log files for multiple AP's to help monitor your networks. A complete description of what each tool does can be found in the help menu

Unicornscan is an asynchronous TCP and UDP port scanner developed by the late Jack C. Louis.

Gobbler: A tool to audit DHCP networks Includes DHCP rogue server detection, DHCP DoS, distributed spoofed port scanner using DHCP to obtain many source IP addresses, mulitple arp scans, filtered port detection, spoofed OS detection (nmap + port 0)

Pure Java Network Tools. Free portable cross-platform. Include: 01) ICMP-ping, 02) ICMP-traceroute, 03) DNS-check resolver, 04) Parallel Host TCP-scanner, 05) IP-calculator, 06) Syslog-server, 07) Telnet-client, 08) Local ARP-cache request, 09) Parallel Network Ping-Scanner, 10) Snmp-Get concrete value utility. 11) Parallel ICMP flood utility. 12) Parallel UDP flood utility. 13) TFTP-server. 14) NTP-server. 15) Host TCP-ping. 16) SNMP-MRTG traffic monitor. 17) Anonymous FTP-server. 18) Parallel Network TCP-scanner. 19) Parallel Network SNMP-scanner. 20) Parallel Network DNS-scanner. 21) Parallel SNMP-DoS. 22) Parallel HTTP/HTTPS-DoS Need JRE-1.8: https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html . Source - https://github.com/harp077/pj-net-tools . If you like this - put a star on https://github.com/harp077/pj-net-tools

A Simple Port Scanner in Python. You need python installed on your pc before you can use the script!

Knocker is a simple, versatile, and easy-to-use TCP security port scanner written in C, using threads. It is able to analyze hosts and the network services which are running on them. It is available for Linux, FreeBSD, Unix, and Windows95/98/2000.

This is a driver for the Artec AS6E parallel port scanner. It now can be run through a SANE interface, or as a stand-alone program. Version 0.4 scans pretty well in all modes, and at all hardware resolutions. It works in EPP, PS/2, and SPP modes.

A light-weight port scanner with BSD-derived operating systems in mind.

PHP, Perl and MySql based web interface for the Nessus security scanner and Nmap port scanner. The system presents scan results via a Email notification, a HTML interface, or exported to a PDF file.

github: https://github.com/samedog/phpmvs

PScan: A port scanner for PalmOS Devices. This scanner is being developed by the Blue Collar Hacker's Union and is meant to be built using GNU tools (PRC-Tools, specifically), to be released under GPL.

SecuBat is a generic and modular web vulnerability scanner that, similar to a port scanner, automatically analyzes web sites with the aim of finding exploitable SQL injection and XSS vulnerabilities.

WebDeets Is A Network Utility App That Is Used For Network Diagnostics And Troubleshooting. Provide Features That Can Help, Network Administrators And IT Professionals To Monitor And Troubleshoot Network Performance, Identify Potential Vulnerabilities And Take Proactive Steps To Address Any Issues. It Can Convert IP Addresses To Hostnames And Vice Versa And Comes With Preloaded Commands Of Netstat And Ping. It Allows You To Save Results In Different Formats And Has A Real-Time Terminal Feature. Overall, It's A Powerful Tool For Network Administrators And IT Professionals WebDeets is a versatile Tool That Simplifies Network Diagnostics And Is Essential For Anyone Working With Complex Networks.

Network scanner built in javascript language to detect hosts up and opened ports in a TCPIP network. It uses javascript , HTML and AJAX with a web browser. Only works fine in MS Internet Explorer.

A simple, efficient, cross-platform port scanner implemented in Java. Features an intuitive user interface that is simple to use.