Compare the Top Free Server Monitoring Software as of July 2025

What is Free Server Monitoring Software?

Server monitoring software helps IT administrators track the performance, health, and availability of servers in real-time. These tools collect and display critical data on server resources such as CPU usage, memory consumption, disk space, and network traffic. By setting alerts for anomalies or performance degradation, server monitoring software helps prevent downtime and ensures servers run optimally. It often includes features like log management, automated reporting, and integration with other IT management tools. These solutions are essential for identifying potential issues early and maintaining the reliability of both on-premises and cloud-based server environments. Compare and read user reviews of the best Free Server Monitoring software currently available using the table below. This list is updated regularly.

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    Paessler PRTG

    Paessler PRTG

    Paessler GmbH

    Paessler PRTG is an all-inclusive monitoring software solution developed by Paessler. Equipped with an easy-to-use, intuitive interface with a cutting-edge monitoring engine, PRTG optimizes connections and workloads as well as reduces operational costs by avoiding outages while saving time and controlling service level agreements (SLAs). The solution is packed with specialized monitoring features that include flexible alerting, cluster failover solution, distributed monitoring, in-depth reporting, maps and dashboards, and more. PRTG monitors your entire IT infrastructure. All important technologies are supported: • SNMP: ready-to-use and custom options • WMI and Windows Performance Counters • SSH: for Linux/Unix and macOS systems • Traffic analysis using flow protocols or packet sniffing • HTTP requests • REST APIs returning XML or JSON • Ping, SQL, and many more
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    Starting Price: $2149 for PRTG 500
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  • 2
    ManageEngine OpManager
    ManageEngine OpManager is an effective server monitoring tool that provides real-time insights into the performance and health of both physical and virtual servers. It tracks critical metrics such as CPU usage, memory consumption, disk space, and network performance, enabling IT teams to identify and resolve issues promptly. With features like proactive alerting, automated fault detection, and detailed reporting, OpManager ensures optimal server uptime and reliability. Its customizable dashboards and intuitive interface enhance visibility and streamline server management, making it an essential solution for maintaining peak server performance.
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    Starting Price: $95.00/one-time
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  • 3
    Pandora FMS

    Pandora FMS

    Pandora FMS

    With more than 50,000 customer installations across the five continents, Pandora FMS is a truly all-in-one monitoring solution, covering all traditional silos for specific monitoring: servers, networks, applications, logs, synthetic/transactional, remote control, inventory, etc. Pandora FMS gives you the agility to find and solve problems quickly, scaling them so they can be derived from any source, on-premise, multi cloud or both of them mixed. Now you have that capability across your entire IT stack and analytics to find any problem, even the ones that are hard to find. Thanks to more than 500 plugins available, you can control and manage any application and technology, from SAP, Oracle, Lotus, Citrix or Jboss to VMware, AWS, SQL Server, Redhat, Websphere, etc.
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    Starting Price: €90/month
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    ManageEngine Applications Manager
    ManageEngine Applications Manager is an enterprise-ready platform designed to monitor an entire application ecosystem of a business organization. Our platform helps IT and DevOps teams get visibility into all the dependent components within their application stack. With Applications Manager, it becomes easier to monitor the performance of mission-critical web applications, web servers, databases, cloud services, middleware, ERP systems, messaging components, and more. It has tons of features that fast-track the troubleshooting process and help reduce MTTR. This way, issues are fixed before application end-users are affected. Applications Manager has a fully functional dashboard that can be customized to get performance insights at a glance. By configuring alerts, it constantly keeps a lookout for performance issues within the application stack. Combining this with intelligent machine learning, Applications Manager helps turn performance data into actionable insights.
    Starting Price: $395.00/Year
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    Xitoring

    Xitoring

    Xitoring

    Stop using multiple apps for server uptime and performance monitoring. Get Xitoring , and start monitoring numerous servers and websites in minutes by running one CLI command. We’ll automatically configure everything! Xitoring is an innovative SaaS platform for server monitoring. Our agent, Xitogent , gathers data from your servers to ensure optimal performance and prevent downtime. By keeping your systems running smoothly, we help boost customer satisfaction. Our global probing nodes continuously monitor your servers. If any issues arise, we notify the right contact instantly. At Xitoring, we’re committed to improving our software and adding incredible features in the future. Introduced in 2021, Xitoring aims to revolutionize the server monitoring industry with automation for those tired of traditional methods.
    Starting Price: $4.99 OR Lifetime free
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    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
  • 7
    Checkmk

    Checkmk

    Checkmk

    Checkmk is a comprehensive IT monitoring system that enables system administrators, IT managers, and DevOps teams to identify issues across their entire IT infrastructure (servers, applications, networks, storage, databases, containers) and act quickly to resolve them More than 2,000 commercial customers and many more open source users worldwide use Checkmk daily. Key product features: • Service state monitoring with almost 2,000 checks 'out of the box' • Log and event-based monitoring • Metrics, dynamic graphing, and long-term storage • Comprehensive reporting incl. availability and SLAs • Flexible notifications and automated alert handling • Monitoring of business processes and complex systems • Hardware and software inventory • Graphical, rule-based configuration, and automated service discovery Top use cases: • Server Monitoring • Network Monitoring • Application Monitoring • Database Monitoring • Storage Monitoring • Cloud Monitoring • Container Monitoring
    Starting Price: $0/year
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    Zabbix

    Zabbix

    Zabbix

    Zabbix is the ultimate enterprise-level software designed for real-time monitoring of millions of metrics collected from tens of thousands of servers, virtual machines and network devices. Zabbix is Open Source and comes at no cost. Detect problem states within the incoming metric flow automatically. No need to peer at incoming metrics continuously. The native web interface provides multiple ways of presenting a visual overview of your IT environment. Save yourself from thousands of repetitive notifications and focus on root causes of a problem with Zabbix Event correlation mechanism. Automate monitoring of large, dynamic environments.Build distributed monitoring solution while keeping centralized control. Integrate Zabbix with any part of your IT environment. Get access to all Zabbix functionality from external applications through Zabbix API.
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    NetApp Cloud Insights
    Control the performance and utilization of your cloud workloads. NetApp Cloud gives you complete visibility into your infrastructure and applications. With Cloud Insights, you can monitor, troubleshoot and optimize all your resources and applications across your entire technology stack, whether it’s on-prem or in the cloud. Protect your most valuable business asset – data - from ransomware with early detection and automated responses to threats. Alert on potential misuse or theft of key intellectual property by malicious parties, both internal and external to your organization. Ensure corporate compliance by auditing access and usage patterns to your critical corporate data on-premises or in the cloud. From the public cloud to the datacenter, full-stack visibility of infrastructure and applications from hundreds of collectors available, all in one place. You don’t need to scramble to find new monitoring tools every time a new platform is introduced into your organization.
    Starting Price: $6 per month
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    Centreon

    Centreon

    Centreon

    Centreon is a global provider of business-aware IT monitoring for always-on operations and performance excellence. The company’s holistic, AIOps-ready platform is designed for today’s complex, distributed hybrid cloud infrastructures. Centreon monitors the complete IT Infrastructure from Cloud-to-Edge for a clear and comprehensive view. Centreon removes blind spots, monitoring all equipment, middleware and applications that are part of modern IT workflows, from on-premise legacy assets to private and public cloud environments, all the way to the edge of the network, where smart devices and customers combine to create business value. Centreon is constantly current, able to support the most dynamic environments. With auto-discovery capabilities it can keep track of Software-Defined Network (SDN) elements, AWS or Azure cloud assets, Wi-Fi access points or any other component of today’s agile IT infrastructure.
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