Compare the Top Free System Monitoring Software as of October 2025

What is Free System Monitoring Software?

System monitoring software is designed to track the performance, health, and availability of IT systems, including servers, networks, applications, and hardware. It continuously collects data such as CPU usage, memory consumption, disk activity, and network throughput to detect anomalies or potential failures. Many tools feature dashboards, alerts, and automated reports to help administrators respond quickly to issues before they impact end users. By providing real-time visibility, system monitoring software helps organizations maintain uptime, optimize resource usage, and improve troubleshooting efficiency. It is widely used in IT operations, DevOps, and enterprise environments to ensure system reliability and performance. Compare and read user reviews of the best Free System Monitoring software currently available using the table below. This list is updated regularly.

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    Site24x7

    Site24x7

    ManageEngine

    ManageEngine Site24x7 is a comprehensive observability and monitoring solution designed to help organizations effectively manage their IT environments. It offers monitoring for back-end IT infrastructure deployed on-premises, in the cloud, in containers, and on virtual machines. It ensures a superior digital experience for end users by tracking application performance and providing synthetic and real user insights. It also analyzes network performance, traffic flow, and configuration changes, troubleshoots application and server performance issues through log analysis, offers custom plugins for the entire tech stack, and evaluates real user usage. Whether you're an MSP or a business aiming to elevate performance, Site24x7 provides enhanced visibility, optimization of hybrid workloads, and proactive monitoring to preemptively identify workflow issues using AI-powered insights. Monitoring the end-user experience is done from more than 130 locations worldwide.
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    Starting Price: $9.00/month
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  • 2
    NMIS

    NMIS

    FirstWave

    FirstWave’s NMIS is a complete network management system that provides fault, performance, and configuration management, performance graphs, and threshold alerts. Business rules allow for highly granular notification policies with many types of notification methods. NMIS consolidates multiple tools into one system, ready for Network Engineers to use. Scalable, flexible, open, and simple to implement and maintain, NMIS is the Network Management System that underpins the operations of over one hundred thousand organizations worldwide – making it one of the most widely used open-source Network Management Systems in the world today. FirstWave enables partners, including some of the world’s largest telcos and managed service providers (MSPs), to protect their customers from cyber-attacks, while rapidly growing cybersecurity services revenues at scale. FirstWave provides a comprehensive end-to-end solution for network discovery, management, and cybersecurity for its partners globally.
    Starting Price: $0
  • 3
    Sematext Cloud

    Sematext Cloud

    Sematext Group

    Sematext Cloud is an innovative, unified platform with all-in-one solution for infrastructure monitoring, application performance monitoring, log management, real user monitoring, and synthetic monitoring to provide unified, real-time observability of your entire technology stack. It's used by organizations of all sizes and across a wide range of industries, with the goal of driving collaboration between engineering and business teams, reducing the time of root-cause analysis, understanding user behaviour and tracking key business metrics. The main capabilities range from log monitoring to APM, server monitoring, database monitoring, network monitoring, uptime monitoring, website monitoring or container monitoring Find complete details on our website. Or better: start a free demo, no email address required.
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    Starting Price: $0
  • 4
    eG Enterprise

    eG Enterprise

    eG Innovations

    IT performance monitoring is not about monitoring CPU, memory and network resources any more. eG Enterprise makes user experience the centerpiece of your IT monitoring and management strategy. With eG Enterprise, you can measure the digital experience of your users, get deep visibility into the performance the entire application delivery stack — from code to user experience, and data center to cloud — from a single pane of glass, correlate performance across domains and pinpoint the root-cause of problems proactively. Machine learning and analytics capabilities embedded in eG Enterprise enable IT teams make intelligent decisions regarding right-sizing, optimization and planning for future growth. The result: happy users, enhanced productivity, improved IT efficiency and tangible business ROI. eG Enterprise is available for installation on-premise and as a SaaS solution. Start a free trial today.
    Starting Price: $1,000 per month
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