8 Best PRTG Network Monitor Free Alternatives in 2026

What is ManageEngine OpManager?

ManageEngine OpManager is a comprehensive server and network management solution that provides a unified view of the network under one console. It includes pre-defined reports, alerts and notifications, automated tasks, etc. MP configurations can be created using 'drag-and-drop' functionality ...

What is Nagios XI?

Nagios XI is a powerful network monitoring platform designed to help organizations worldwide make important IT infrastructure decisions with confidence. Powerful integrated add-ons allow for distributed IT management, DevOps integration, and proactive problem resolution when things go wrong. It ...

What is ManageEngine OpManager MSP?

ManageEngine OpManager MSP is the perfect tool for service providers and IT admins to observe and control their customers' networks. From one convenient location, it can track over 2000 metrics of several 10,000 device varieties, delivering distinctive reports to every user manager so they can ...

What is OP5 Monitor?

OP5 Monitor is a powerful non-intrusive network monitoring software application that allows user to monitor, troubleshoot, and archive performance of routers, switches, firewalls, servers, application servers, workstations and other devices. OP5 Monitor provides superior interface, agent maker ...

What is SolarWinds ipMonitor?

SolarWinds ipMonitor provides network administrators with an easy-to-use, affordable way to monitor the performance of business's network. With ipMonitor, user can troubleshoot effectively by obtaining real-time information about devices, ports, CPU utilization, disk space, and more! It allows ...

What is SolarWinds Network Performance Monitor?

SolarWinds Network Performance Monitor (NPM) provides a powerful and budget friendly solution for network monitoring. Detect and resolve network performance issues and outages without delay. An ideal choice for both online and onsite monitoring scenarios. Get the best of both worlds for an ...

What is Nagios Network Analyzer?

Nagios network monitor, is a network monitoring software, has become the standard for reducing downtime and improving the reliability of IT infrastructures. Used by tens of thousands of organizations, across all industries, Nagios network monitor is an open source system that monitors hardware ...

What is NinjaOne?

NinjaOne, the automated endpoint management platform, delivers visibility, security, and control over all endpoints for more than 30,000 customers in 130+ countries. The cloud-native NinjaOne platform simplifies endpoint management, patching, and visibility for environments at any scale. It is ...