Best Free System Monitoring Software
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Compare the Top Free System Monitoring Software as of November 2025
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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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1
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.Starting Price: $9.00/month -
2
ManageEngine OpManager
ManageEngine
ManageEngine OpManager is a powerful system monitoring tool that provides comprehensive oversight of critical IT infrastructure, including servers, network devices, and applications. It delivers real-time insights into system performance, tracking key metrics such as CPU usage, memory consumption, disk space, and network activity. With proactive alerting and automated fault detection, OpManager enables IT teams to quickly identify and resolve issues, ensuring maximum system uptime and reliability. Its customizable dashboards and detailed reporting features enhance visibility and facilitate efficient resource management, making it an essential solution for maintaining optimal system performance.Starting Price: $95.00/one-time -
3
groundcover
groundcover
Cloud-based observability solution that helps businesses track and manage workload and performance on a unified dashboard. Monitor everything you run in your cloud without compromising on cost, granularity, or scale. groundcover is a full stack cloud-native APM platform designed to make observability effortless so that you can focus on building world-class products. By leveraging our proprietary sensor, groundcover unlocks unprecedented granularity on all your applications, eliminating the need for costly code changes and development cycles to ensure monitoring continuity. 100% visibility, all the time. Cover your entire Kubernetes stack instantly, with no code changes using the superpowers of eBPF instrumentation. Take control of your data, all in-cloud. groundcover’s unique inCloud architecture keeps your data private, secured and under your control without ever leaving your cloud premises.Starting Price: $20/month/node -
4
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.Starting Price: €90/month -
5
Netdata
Netdata, Inc.
The open-source observability platform everyone needs! Netdata collects metrics per second and presents them in beautiful low-latency dashboards. It is designed to run on all of your physical and virtual servers, cloud deployments, Kubernetes clusters, and edge/IoT devices, to monitor your systems, containers, and applications. It scales nicely from just a single server to thousands of servers, even in complex multi/mixed/hybrid cloud environments, and given enough disk space it can keep your metrics for years. KEY FEATURES: 💥 Collects metrics from 800+ integrations 💪 Real-Time, Low-Latency, High-Resolution 😶🌫️ Unsupervised Anomaly Detection 🔥 Powerful Visualization 🔔 Out of box Alerts 📖 systemd Journal Logs Explorer 😎 Low Maintenance ⭐ Open and Extensible Try Netdata today and feel the pulse of your infrastructure, with high-resolution metrics, journal logs and real-time visualizations.Starting Price: Free -
6
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 -
7
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 -
8
Igiko Management Tools
Igiko
Igiko Management Tools is web-based software for remote access, management, and monitoring of physical and virtual machines within a permission-based security model. Igiko has a built-in remote desktop gateway that allows you to establish connections with your computers or VMs. Thanks to HTML5 RDP control implemented in the web console, users can work with remote desktops from anywhere using a web browser. Unlike most RMM tools, the Igiko application is an agentless service. You can only install it to one machine to provide monitoring, management, and remote access capabilities to all local computers and VMs. Embedded web server and tunnel providing clients with dedicated DNS address on Igiko server make configuring and accessing the application worldwide seamless and easy to operate. Igiko is ideal for small and medium enterprises, hosting providers, software development and engineering companies, e-learning companies, virtual labs, and home users.Starting Price: $5 for a machine (host or VM) -
9
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 moreStarting Price: $2149 for PRTG 500 -
10
TeamViewer
TeamViewer
TeamViewer is a popular remote access and support software that enables users to connect to and control computers and devices from anywhere in the world. It is widely used for troubleshooting technical issues, managing IT services, and providing customer support. The software allows for secure file sharing, real-time collaboration, and remote desktop access across different platforms, including Windows, macOS, Linux, iOS, and Android. TeamViewer's security features include end-to-end encryption and two-factor authentication, ensuring safe and reliable remote connections. It is used by individuals, IT professionals, and large organizations to enhance productivity, offer remote support, and manage devices efficiently.Starting Price: $24.90 per month -
11
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.Starting Price: $0 -
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Better Stack
Better Stack
Better Stack is a unified observability tool that helps you ship better software, faster. Schedule on-call rotations, receive actionable alerts, and resolve incidents with ease. Better Stack brings together incident management, uptime monitoring, status pages, log management, and infrastructure monitoring – all in one place. Built for speed and scale, it combines multiple monitoring and alerting workflows into a single, powerful interface that boosts visibility and slashes response times. Key features include an OpenTelemetry-native Kubernetes collector powered by eBPF, real-time alerting, and collaborative dashboards. Under the hood, Better Stack runs on ClickHouse, enabling lightning-fast queries and scalable ingestion across high-cardinality datasets. You can visualize your entire stack, turn all your logs into structured data, and query everything with SQL – as if it were a single database. Seamlessly integrates into your workflow with 100+ integrations.Starting Price: $29 per month -
13
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 -
14
KACE by Quest
Quest Software
KACE® by Quest supports your unified endpoint management (UEM) strategy by helping you discover and track every device in your environment, automate administrative tasks, keep compliance requirements up-to-date and secure your network from a range of cyberthreats. Discover, manage and secure all your endpoints from one console as you co-manage your traditional and modern endpoints, including Windows, Mac, Linux, ChromeOS, and iOS and Android devices. KACE is a Unified Endpoint Management solution that offers a single point of control for managing IT systems across the entire organization, inside or outside your network. This comprehensive solution takes the stress out of keeping devices secure and compliant so you can do more.Starting Price: As low as $3/mo/device -
15
Uptrends
Uptrends
ITRS Uptrends helps organizations achieve 24x7 reliability and performance for web services (websites, SaaS, APIs), so mission-critical transactions work from anywhere, anytime. ITRS Uptrends’ intuitive no-code/low-code transaction recorder simplifies the monitoring setup, driving rapid time-to-value even across multi-vendor/domain business services. We continuously monitor multistep user journeys from 368 nodes in 67 countries to provide full visibility beyond uptime. Alongside synthetic monitoring, our real user monitoring captures service usage and adoption to show IT's business impact. Integrating with our real-time observability portfolio, ITRS Uptrends offers end-to-end visibility of business services across hybrid infrastructures. As a SaaS solution, ITRS Uptrends is deployment-free unless private checkpoints are required to monitor from within a corporate network.Starting Price: $17.50/month -
16
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 MonitoringStarting Price: $0/year -
17
SuperOps
SuperOps
SuperOps is a future-ready, unified PSA-RMM platform for fast-growing MSPs. Powered with the goodness of AI and intelligent automation, SuperOps is packed with all the features and tools that a modern MSP needs, including project management and IT documentation. MSPs no longer need to toggle between tools to manage different pieces of their work. With SuperOps, MSPs can break free from disjointed, legacy tools and experience a platform that’s built for the cloud and designed to make MSPs’ work and life easier.Starting Price: $79/tech/month -
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Nagios Core
Nagios Enterprises
Nagios Core is the monitoring and alerting engine that serves as the primary application around which hundreds of Nagios projects are built. Nagios Core serves as the basic event scheduler, event processor, and alert manager for elements that are monitored. It features several APIs that are used to extend its capabilities to perform additional tasks, is implemented as a daemon written in C for performance reasons, & is designed to run natively on Linux/*nix systems. Alerts with escalation capabilities are delivered to IT staff via email and SMS to ensure fast detection of outages. Event handlers can automatically restart failed applications, servers, devices, and services when problems are found. Gain a centralized view of your entire IT operations and review detailed status information through the web interface. -
19
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. -
20
StatusGator
Nimble Industries
StatusGator is a status aggregator. We aggregate the status of more than 1,500 cloud services by collecting data from their official published status pages. This data is then used to help you stay on top of outages. Features: 1. Status pages with the status of all the vendors your team relies on (like AWS, Google Cloud, Zoom, etc.) 2. Customizable and brandable pages can be shared with your employees, team, users, or stakeholders. 3. Instant notification to Slack, Teams, SMS, email, or incident management tools on status change. 4. Historical data for detailed vendor performance analysis.Starting Price: $ 39.99 per month -
21
LPAR2RDD
XORUX
The tool offers you end-to-end views of your server environment and can save you significant money in operation monitoring by predicting utilization bottlenecks in your virtualized environment. You can also generate policy-based alerts, capacity reports, and load forecasts. Leading performance-monitoring solution thanks to unique web-based UI for graphical interpretation of performance utilization in a virtualized environment. You can find utilization of any attached storage in a simple graphical form comprehensible to anyone from technician to management level. It provides a complete performance and mapping overview through Cloud, server virtualization layer, Database, SAN, LAN and storage. Free to use. You do not need to purchase expensive commercial solutions. Free to use. You do not need to purchase expensive commercial solutions. Free to use. You do not need to purchase expensive commercial solutions.Starting Price: $3000.00/year -
22
UltraDNS
Vercara
UltraDNS is an enterprise grade, cloud-based authoritative DNS service that securely delivers fast and accurate query responses to websites and other vital online assets. Enterprise grade, managed authoritative DNS service that ensures 100% website availability along with built-in security for superior protection. In a connected world, as Internet users expect seamless and secure online experiences, DNS has become more difficult and complex to manage than ever before. The emergence of IoT devices and online threats leave businesses struggling to find the correct DNS strategy for their IT needs. Having the experience and DNS know-it-all in-house is nearly impossible, let alone having the dedicated resources to correctly manage and implement a sound strategy to meet today’s Internet demands. Ensure that your website and other online assets are always available. Backed by our 100% uptime guarantee and industry leading SLAs, UltraDNS offers a global platform.Starting Price: $49.00 per month -
23
Anodot
Anodot
Anodot applies AI to deliver autonomous analytics in real-time, across all data types, at enterprise scale. Unlike the manual limitations of traditional Business Intelligence, we provide analysts mastery over their business with a self-service AI platform that runs continuously to eliminate blind spots, alert incidents, and investigate root causes. Our platform uses patented machine learning algorithms to isolate issues and correlate them across multiple parameters. This helps eliminate business insight latency and supports smart, rapid business decision-making. Anodot has nearly 100 customers in digital transformation industries like eCommerce, FinTech, AdTech, Telco, Gaming, including Microsoft, Lyft, Waze, and King. Founded in 2014, Anodot is headquartered in Silicon Valley and Israel, with Sales offices worldwide. -
24
ThousandEyes
Cisco
Cisco ThousandEyes is a cutting-edge network intelligence platform designed to provide organizations with deep visibility into digital experiences across the internet, cloud, and enterprise networks. By leveraging advanced monitoring and analytics, ThousandEyes helps businesses pinpoint, troubleshoot, and resolve performance issues impacting critical applications, websites, and services. Its comprehensive suite of tools offers insights into network performance, application delivery, and user interactions, enabling organizations to ensure seamless connectivity and optimal user experiences. Widely adopted by Fortune 500 companies and SaaS providers, ThousandEyes is a trusted solution for navigating the complexities of modern hybrid and multi-cloud environments, empowering IT teams to proactively manage and optimize their digital ecosystems. -
25
Icinga
Icinga GmbH
Icinga is a monitoring system which checks the availability of your network resources, notifies users of outages, and generates performance data for reporting. Scalable and extensible, Icinga can monitor large, complex environments across multiple locations. Icinga 2 is the monitoring server and requires Icinga Web 2 on top in your Icinga Stack. The configuration can be easily managed with either the Icinga Director, config management tools or plain text within the Icinga DSL. Find answers, take actions and become a problem-solver. Be flexible and take your own ways. Stay curious, stay passionate, stay in the loop. Tackle your monitoring challenge. The Icinga stack spans six core strengths that cover all aspects of monitoring. Level up with valuable insights and on-time notifications, eye-opening visuals and analytics. Icinga easily integrates within your systems, and gives you the power to automate your tasks.Starting Price: $0 -
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Panorama9
Panorama9
This is IT monitoring and management done right. Get the full picture and respond quickly to issues. Patch management, remote control, network discovery, all built into one beautiful and easy-to-use solution. Got a minute? That’s how long it takes to deploy and install a powerful and lightweight agent on all of your devices. Within minutes you are provided with detailed information about your IT environment. IT administration is complex but we make your job easier. Automatically discover devices and services in your IT environment. Remote install applications and run scripts. Everything you need in one comprehensive tool. Downtime is unacceptable. Panorama9 foresees problems so you can be proactive instead of reactive. When things do go wrong you are notified instantly and can take action before your users notice anything. Your security is only as strong as the weakest link - we'll tell you where that is.
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