C++ Networking Software

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

  • Veeam Data Platform v13.1 - Get Your Free Trial Icon
    Veeam Data Platform v13.1 - Get Your Free Trial

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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • 1
    Angry IP Scanner

    Angry IP Scanner

    A cross-platform network scanner that is fast and simple to use

    Angry IP scanner is fast and friendly network scanner for Windows, Linux, and Mac. It is very extensible, allowing it to be used for very wide range of purposes, with the primary goal of being useful to network administrators.
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    Downloads: 3,363 This Week
    Last Update:
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  • 2
    Pandora Open

    Pandora Open

    Open Source Monitoring System for performance and availability.

    Pandora OPEN is a high-performance, 100% open-source monitoring ecosystem, born as the independent evolution of the Pandora FMS community branch after version 777. Licensed under GPLv2, it provides a modular and sovereign platform for supervising networks, servers, and applications without commercial dependencies. It features multi-platform agents, remote monitoring (SNMP, WMI, HTTP), GIS maps, and advanced visual dashboards. Entirely maintained by the community on GitHub, it ensures total transparency, technical flexibility, and absolute freedom for system administrators.
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    Downloads: 2,608 This Week
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  • 3
    Smoothwall
    Smoothwall is a best-of-breed Internet firewall/router, designed to run on commodity hardware and to provide an easy-to-use administration interface to those using it. Built using open source and Free software, it's distributed under the GNU Public License.
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    Downloads: 1,589 This Week
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  • 4
    VoIP monitor

    VoIP monitor

    VoIP SIP and SKINNY quality analyzer and packet / audio recording tool

    VoIPmonitor is open source network packet sniffer with commercial frontend for SIP SKINNY MGCP RTP and RTCP VoIP protocols running on linux. VoIPmonitor is designed to analyze quality of VoIP call based on network parameters - delay variation and packet loss according to ITU-T G.107 E-model which predicts quality on MOS scale. Calls with all relevant statistics are saved to MySQL or ODBC database. Optionally each call can be saved to pcap file with either only SIP / SKINNY protocol or SIP/RTP/RTCP/T.38/udptl protocols. VoIPmonitor can also decode audio.
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    Downloads: 492 This Week
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

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  • 5
    WinMTR is a free MS Windows visual application that combines the functionality of the traceroute and ping in a single network diagnostic tool.
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    Downloads: 2,460 This Week
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  • 6
    Iometer
    I/O performance Analysis Tool
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    Downloads: 401 This Week
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  • 7
    Securepoint SSL VPN Client

    Securepoint SSL VPN Client

    SSL VPN Client for Windows (OpenVPN).

    SSL VPN Client for Windows (OpenVPN).
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    Downloads: 577 This Week
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  • 8
    MultiThreaded TFTP Server Open Source Freeware Windows/Unix for PXEBOOT, firmware load, support tsize, blksize, timeout Server Port Ranges, Block Number Rollover for Large Files. Runs as Service/daemon. Single Port version also available. Download
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    Downloads: 338 This Week
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  • 9
    SnmpB
    SnmpB is an SNMP MIB browser written in QT. It supports SNMPv1, SNMPv2c & SNMPv3. SnmpB can browse/edit/load/add MIB files and can query SNMP agents. It also supports agent discovery, trap events, and graph plotting.
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    Downloads: 259 This Week
    Last Update:
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  • $300 Free Credits to Build on Google Cloud Icon
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  • 10
    SBLIM (pronounced "sublime"), the Standards Based Linux Instrumentation for Manageability is an IBM-initiated Open Source project, intended to enhance the manageability of GNU/Linux systems. It does so by enabling WBEM, Web Based Enterprise Management.
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    Downloads: 271 This Week
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  • 11
    Serial Studio

    Serial Studio

    Multi-purpose serial data visualization & processing

    Serial Studio is a simple, multi-platform, and multi-purpose serial data visualization program that allows embedded developers to visualize, analyze, and present data generated from their projects and devices while avoiding the need to write project-specific visualization software. Over my many CanSat-based competitions, I found myself writing and maintaining several Ground Station software for each program. However, I decided that it would be easier and more sustainable to define one flexible Ground Station Software that lets developers define how each CanSat presents data using an extensible communication protocol for easy data visualization. Developers can also use Serial Studio for almost any data acquisition and visualization project outside of CanSat, now supporting data retrieval from hardware serial ports, software serial ports, MQTT, and network sockets (TCP/UDP). You can download and install Serial Studio for your preferred platform.
    Downloads: 22 This Week
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  • 12
    TCP/IP Manager

    TCP/IP Manager

    At home or at work, changing settings is now just one click away!

    TCP/IP Manager is designed to help computer users keep track of their network configuration in different locations. At home or at work, changing network settings is now just one click away!
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    Downloads: 106 This Week
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  • 13
    This project implements a simple STUN server and client on Windows, Linux, and Solaris. The STUN protocol (Simple Traversal of UDP through NATs) is described in the IETF RFC 3489, available at http://www.ietf.org/rfc/rfc3489.txt
    Downloads: 105 This Week
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  • 14
    Visual Syslog Server for Windows

    Visual Syslog Server for Windows

    Free Syslog Server for Windows with a graphical user interface

    Visual Syslog Server for Windows is a free open source program to receive and view syslog messages. Useful when setting up routers and systems based on Unix/Linux. Visual Syslog Server for Windows has a live messages view: switches to a new received message. Helpful color highlighting. Useful message filtering. Customizable notification and actions. Sources hosted on the GitHub: https://github.com/MaxBelkov/visualsyslog
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    Downloads: 122 This Week
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  • 15
    i2pd

    i2pd

    I2P: End-to-End encrypted and anonymous Internet

    i2pd (I2P Daemon) is a lightweight, full-featured C++ implementation of the I2P (Invisible Internet Project) protocol, designed for enabling anonymous, encrypted, and censorship-resistant communication. It functions as a router node in the I2P network, supporting services like anonymous websites (eepsites), email, file sharing, and secure messaging. i2pd is designed to be resource-efficient and suitable for running on embedded systems or routers while maintaining compatibility with the wider I2P ecosystem.
    Downloads: 18 This Week
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  • 16
    Firewall Builder is a GUI firewall management application for iptables, PF, Cisco ASA/PIX/FWSM, Cisco router ACL and more. Firewall configuration data is stored in a central file that can scale to hundreds of firewalls managed from a single UI. A message from project maintainers: After working on Firewall Builder for many years it is with some sadness that Vadim and I are announcing that we have suspended all development activity for this project. Firewall Builder has been a great project to work on and we have truly appreciated all the support and positive feedback that the user community has provided. Without you we wouldn’t have been able to keep things going this long. You might be wondering why we are doing this... We had an exciting opportunity come up to start a company developing advanced security automation solutions. This was a chance of a lifetime that we just couldn’t pass up and unfortunately it means that we no longer have time available to work on improv
    Downloads: 82 This Week
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  • 17
    Self Integrated DNS DHCP Server Open Source Freeware Windows/Linux. Works as DHCP or DNS Server or both. Using both services automatically adds DHCP allotted hosts automatically to DNS Server. Support Relay Agent, PXEBOOT, BOOTP, Zone Trasfer, DHCP Range Filters. Download.
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    Downloads: 79 This Week
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  • 18
    OpenThread

    OpenThread

    OpenThread released by Google is a thread networking protocol

    OpenThread released by Google is...Thread Certified Component an open-source implementation of the Thread networking protocol. Google Nest has released OpenThread to make the technology used in Nest products more broadly available to developers to accelerate the development of products for the connected home. OS and platform agnostic, with a narrow platform abstraction layer and a small memory footprint, making it highly portable. It supports both system-on-chip (SoC) and network co-processor (NCP) designs. Thread Certified Component, implementing all features defined in the Thread 1.3.0 specification, including all Thread networking layers (IPv6, 6LoWPAN, IEEE 802.15.4 with MAC security, Mesh Link Establishment, Mesh Routing) and device roles, as well as Border Router support.
    Downloads: 15 This Week
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  • 19
    NSClient++ is a windows service that allows performance metrics to be gathered by Nagios (and possibly other monitoring tools). It is an attempt to create a NSClient and NRPE compatible but yet extendable performance service for windows.
    Downloads: 54 This Week
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  • 20
    Smb4K

    Smb4K

    Advanced Network Neighborhood Browser and Samba Share Mounting Utility

    Smb4K is an advanced network neighborhood browser and Samba share mounting utility. It is based on the KDE Frameworks, Samba's client library (libsmbclient) and, optionally, the KDSoap WS-Discovery client. It scans your network neighborhood for all available workgroups, servers and shares and can mount all desired shares to your local file system. It is released under the terms of the GNU General Public License, version 2 (GPL v2+). Linux, FreeBSD and its derivatives as well as NetBSD are officially supported.
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    Downloads: 86 This Week
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  • 21
    qTox

    qTox

    qTox is a chat, voice, video, and file transfer IM client

    qTox is a cross-platform, secure messaging and video calling client for the Tox peer-to-peer protocol. It offers end-to-end encryption, zero metadata leakage, and no central servers, making it a privacy-focused alternative to mainstream messaging apps. qTox includes rich features like file transfers, screen sharing, and group chats, all built with a user-friendly interface powered by Qt. As a decentralized app, qTox ensures that user communication is secure, private, and independent of centralized infrastructure.
    Downloads: 10 This Week
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  • 22
    aMSN

    aMSN

    MSN compatible messenger application

    A very nice MSN compatible messenger application, aMSN Messenger is a multiplatform MSN messenger clone. Works pretty much like its Windows based counterpart. Perfect for keeping in touch with those friends who have not yet seen the light. Works on linux
    Downloads: 46 This Week
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  • 23
    Switch Miner

    Switch Miner

    Cisco switch port mapper

    Switch Miner is a lightweight utility for Windows that acts as a switch port mapper/switch port discovery tool for Cisco switches. It helps network engineers discover the devices that are connected to the all the ports of a switch. It will even discover neighboring switches via CDP and scan them also. Using SNMP it scans switches and creates excel xlsx or csv files. What Does Switch Miner Discover? Interface Info (Name/Last Change) Speed and Duplex (Operational/Admin) MAC Addresses OUI Manufacturer VLAN Number (Data/Voice) VLAN Name (Data/Voice) IP Addresses DNS/NBT Computer Names User Info Domain Info Interface Errors CDP Neighbor Info
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    Downloads: 35 This Week
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  • 24
    WiFiManager

    WiFiManager

    WiFi Connection manager with web captive portal

    Espressif ESPx WiFi Connection manager with fallback web configuration portal. The configuration portal is of the captive variety, so on various devices it will present the configuration dialogue as soon as you connect to the created access point. When your ESP starts up, it sets it up in Station mode and tries to connect to a previously saved Access Point. If this is unsuccessful (or no previous network saved) it moves the ESP into Access Point mode and spins up a DNS and WebServer (default ip 192.168.4.1). Using any wifi enabled device with a browser (computer, phone, tablet) connect to the newly created Access Point. Because of the Captive Portal and the DNS server you will either get a 'Join to network' type of popup or get any domain you try to access redirected to the configuration portal. ESP will try to connect. If successful, it relinquishes control back to your app. If not, reconnect to AP and reconfigure.
    Downloads: 5 This Week
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  • 25
    This is a internet security scanner which scans a specified machine or a range of IPs for all possible information like NetBIOS enumeration, gathering sharelist, domain, os, lan manager, remote connection, SNMP walking, ...
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    Downloads: 71 This Week
    Last Update:
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