The best Network Monitor alternative to Tenable is Nmap, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Tenable and 11 are Network Monitors so hopefully you can find a suitable replacement. Other interesting Network Monitor alternatives to Tenable are Angry IP Scanner, Zenmap, NETworkManager by BornToBeRoot and Vernet.
Open-source utility for security auditing and network exploration, utilizing raw IP packets to scan hosts and services, identify OS and service versions, and assess network infrastructure, compatible across major operating systems with advanced GUI and tool suite.
Open-source, cross-platform network scanner for fast and simple IP and port scanning. It's lightweight, requires no installation, utilizes multithreading for speed, and is extendable via plugins. It pings IPs, resolves hostnames, determines MAC addresses, provides NetBIOS info, and saves results in various formats.
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.
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...
Total Network Monitor 2 is a network monitoring software program that is designed to continuously monitor your local network, individual computers, and services that require careful attention and thorough control.
unitworx is a fully-integrated IT Service Management Software that provides all essential tools for IT teams and IT companies including IT Documentation, Monitoring & Ticketing.
Network Inventory Advisor audits all network software and hardware simply and efficiently. It automatically discovers all your network assets (Windows, Mac OS, Linux, SNMP-powered devices & more), scans them and builds flexible network inventory reports.
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.
LanSpy is a set of network utilities brought together in a single program with simple and easy-to-use interface. LanSpy help network administrators maintain and manage their networks.
Port Scanner Online is a user-friendly website that allows you to quickly and easily scan the ports of a target system over the internet.
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