SolarWinds Network Device Monitor Alternatives

Capsa Enterprise, a strong intelligent network traffic analysis & monitoring software, can quickly pinpoint network problems in real time & improve network performance.

Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.

Open Source

Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.

Try for free freemium $9.0 / Monthly (Lite plan)

SmartSniff is a packet sniffer that capture TCP/IP packets and display them as sequence of conversations between clients and servers.

Observium

Debookee is the simplest & most powerful network traffic analyzer for macOS.

NetworkMiner is a Network Forensic Analysis Tool (NFAT) for Windows.

Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.

Open-source and cross-platform network scanner designed to be fast and simple to use

Open Source

Project home page of OpenNMS - a java based network managememnt platform developed under the Open Source model

packeth is GUI and CLI packet generator tool for ethernet.

Ethereal® is used by network professionals around the world for troubleshooting, analysis...

Scapy is a powerful interactive packet manipulation program.

Ettercap is a suite for man in the middle attacks on LAN.