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Browse free open source C Port Scanners and projects below. Use the toggles on the left to filter open source C Port Scanners by OS, license, language, programming language, and project status.

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  • 1

    Masscan

    Mass IP port scanner

    Masscan is an Internet-scale port scanner, able to scan the entire Internet in just 6 minutes or less. It's considered the fastest port scanner and is similar to the famous port scanner nmap, and like port scanners scanrand and unicornscan it uses asynchronous transmissions. However, it is more flexible when it comes to arbitrary port and address ranges. Masscan not only detects when ports are open, it can also check banners. And while it is useful for smaller, internal networks, it's designed with the entire internet in mind. Do take note however that Masscan uses its own custom TCP/IP stack, so anything other than a simple port scan could cause conflict with the local TCP/IP stack unless certain configurations are done.
    Downloads: 80 This Week
    Last Update:
    See Project
  • 2
    UDP Unicorn

    UDP Unicorn

    UDP Stress Tester

    WISHLIST THIS GAME: https://store.steampowered.com/app/2778080/The_Bathrooms/ --- UDP Unicorn is a Win32 UDP flooding/DoS (Denial of Service) utility with multithreading. Uses Winsock to create UDP sockets and flood a target. I created this tool for system administrators and game developers to test their servers. DISCLAIMER: USE AT YOUR OWN RISK. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER OR CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES.
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    Downloads: 366 This Week
    Last Update:
    See Project
  • 3
    NATMap

    NATMap

    TCP/UDP port mapping for full cone NAT

    This project is used to establish a TCP/UDP port mapping from an ISP NAT public address to a local private address. If all layers of NAT are full cones (NAT-1), any host can access internal services through the mapped public address. In bind mode, all traffic does not go through this program.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 4
    Unicornscan is an asynchronous TCP and UDP port scanner developed by the late Jack C. Louis.
    Downloads: 5 This Week
    Last Update:
    See Project
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  • 5

    knocker

    A simple, portable port scanner

    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.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 6
    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.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    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)
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    Blaster Scan is a TCP port scanner. It can extract users exploiting vrfy or expn, check anonymous access on FTP, check brute force on FTP and POP3, extract daemons\' versions, and scan for CGI bugs. It also has a SYN port scan, the ability to ping hosts t
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Fastspy is a multithreaded network port scanner. It minimizes connection idle time performing fast subnet service search, classic port range scan, hosts list scan, and also send user data over a connection to log servers response.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Striven | All In One Business Management Software Icon
    Striven | All In One Business Management Software

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  • 10
    A port scanner, with special abilities agianst IDS and Firewalls. It's under development and new features will be added slowly.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    PMCP (Portable Master Control Program)
    Gives you the ability to operate Windows using PMCP alone, with its collection of useful utilities. Also includes several network tools. Written in pure C with Win32 API for maximum portability.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 12
    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    A simple and effective port scanner coded in C. PortScanner\'s simple UI (User Interface) allows users its features with little to no issues.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Portscan is a simple TCP port scanner (connect scan, similar to nmap -sC). It is implemented with threads for better speed. Please see the code and review it. Criticism is more than welcome. Helps needed to make it robust.
    Downloads: 0 This Week
    Last Update:
    See Project
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