Top Alternatives to PRTG Network Monitor

Zabbix is a robust enterprise-class open-source solution for real-time monitoring of millions of metrics collected from tens of thousands of servers, virtual machines, and network devices. It provides a highly flexible and scalable platform for comprehensive IT infrastructure monitoring.

AppBeat is a comprehensive website and network monitoring service designed to alert users promptly about downtime or performance issues. It offers reliable uptime monitoring, performance measurement, and functional test capabilities, ensuring your online assets are always operational and responsive.

Spiceworks is a comprehensive, free IT management platform designed for small and medium-sized businesses. It offers a suite of tools for inventory, network monitoring, help desk, and community engagement.

Nagios Core is a powerful, open-source monitoring system designed to keep a vigilant eye on your IT infrastructure. It provides comprehensive surveillance of systems, networks, and hardware, ensuring critical services remain operational and alerting administrators to potential issues before they impact end-users.

Datadog is a leading cloud-scale monitoring and analytics platform that unifies data from across your infrastructure, applications, logs, and networks. It provides comprehensive visibility and actionable insights for DevOps teams, IT professionals, and business users alike.

NetSpeedMonitor is a discreet network monitoring tool integrated directly into the Windows Taskbar, providing real-time visualization of upload and download speeds, daily and monthly data usage.

NetCrunch is a powerful, single-server network monitoring platform designed for comprehensive visibility into your IT infrastructure. It provides robust and scalable network monitoring capabilities, including performance analysis, application monitoring, and automated network discovery, all managed from a Windows Server-based deployment for high efficiency.

Munin is a free and open-source networked resource monitoring tool designed to help users analyze resource trends and identify performance bottlenecks. It offers a simple yet powerful way to visualize the health of servers, applications, and network devices over time.

DU Meter is a powerful and user-friendly network bandwidth monitor for Windows. It provides real-time visibility into your internet and network traffic, helping you understand data usage, identify bandwidth-hungry applications, and troubleshoot connectivity issues.

Pandora FMS offers comprehensive monitoring for networks, servers, applications, and cloud environments within an enterprise context. It provides a flexible and scalable platform for IT operations teams to ensure business continuity and optimize performance through detailed insights, alerts, and reporting.

CurrPorts is a lightweight and portable network monitoring utility for Windows. It displays a comprehensive list of all active TCP/IP and UDP connections on your computer, providing detailed information about each connection.

Observium is an auto-discovering network monitoring platform designed for low-maintenance operation. It offers comprehensive visibility into a wide range of network devices, operating systems, and applications through intuitive graphical interfaces and extensive platform support.

BitMeter OS is a comprehensive, free, and open-source network bandwidth monitoring application available for Windows, Linux, and macOS. It provides detailed real-time and historical data on your internet traffic.

Monitis provides comprehensive all-in-one cloud-based monitoring for websites, servers, networks, applications, and custom metrics, ensuring high availability and optimal performance.

Cacti is a comprehensive network graphing and monitoring solution built upon the power of RRDTool. It provides a flexible and scalable platform for collecting, storing, and visualizing time-series data, making it an essential tool for network administrators to gain insights into performance and identify potential issues.

LibreNMS is a powerful and user-friendly open-source network monitoring system based on PHP and MySQL. It automates the discovery and monitoring of network devices, servers, and applications, providing comprehensive visibility into network health and performance.

NetMeter is a compact and portable network monitoring tool designed to provide real-time graphical and numerical data on upload and download speeds for all active network connections. It offers a straightforward way to track bandwidth usage without requiring complex setup or installation.

The Dude is a free network monitoring and management application developed by MikroTik. It provides comprehensive network discovery, mapping, monitoring, and alerting functionalities for various devices and services. Designed for ease of use, it helps administrators visualize their network infrastructure and quickly identify issues.

Microsoft Network Monitor是一个已停产的网络数据包分析器，用于捕获、查看和分析网络流量以及解码各种网络协议。

Lansweeper Network Inventory is a comprehensive, agentless IT asset management and network discovery solution designed for Windows environments. It provides detailed inventory of all connected devices without requiring agent installations.

SolarWinds Network Performance Monitor (NPM) is a comprehensive network monitoring solution designed to simplify the detection, diagnosis, and resolution of network performance problems and outages. It offers real-time data and customizable dashboards to provide deep visibility into your network.

BitMeter is a free, lightweight, and portable bandwidth monitor that graphically displays your internet connection's real-time upload and download speeds. It provides detailed statistics, historical data, and configurable alerts to help users understand and manage their network usage.