Best Free IT Infrastructure Monitoring Tools of 2025

Transform your organization's IT framework with New Relic’s all-encompassing monitoring platform. Acquire immediate visibility into the status, efficiency, and uptime of your complete infrastructure, encompassing everything from servers to networks. Tailored for extensive operations, New Relic facilitates early detection of issues, streamlined troubleshooting, and enhanced resource management, ensuring maximum performance and dependability. Anticipate potential challenges and maintain seamless operations with New Relic's robust IT Infrastructure Monitoring solution designed for enterprises.

Gain comprehensive insights into the performance of your cloud infrastructure, regardless of its scale, by easily consolidating all your metrics in one location to enhance efficiency. The Groundcover platform is specifically designed for monitoring infrastructure in cloud-native settings. It allows for immediate tracking of the health and efficiency of your infrastructure, all while ensuring a seamless deployment experience. Streamline your troubleshooting process - serving as a centralized resource for all your infrastructure, application, and customer metrics, it enables you to query, correlate, and resolve issues within your cloud environments using real-time data and insights from across your entire setup. Store everything with ease - you can retain any volume of metrics without concerns about cardinality or retention limits. Your subscription fees remain consistent, regardless of the granularity of the metrics you choose to store or analyze.

Paessler PRTG is an all-inclusive monitoring solution with an intuitive, user-friendly interface powered by a cutting-edge monitoring engine. It optimizes connections and workloads, reduces operational costs, and prevents outages. It also saves time and controls service level agreements (SLAs). This solution includes specialized monitoring features such as flexible alerting, cluster failover, distributed monitoring, maps, dashboards, and in-depth reporting.

OpManager is the ideal end-to-end network monitoring tool for your organization's network. With OpManager, you can keep a close eye on health, performance, and availability levels of all network devices. This includes monitoring switches, routers, LANs, WLCs, IP addresses and firewalls. Insights into your hardware health and performance; monitor CPU, memory, temperature, disk usage, and more to improve efficiency. Seamlessly manage faults and alerts with instant notifications and detailed logs. Streamlined workflows facilitate easy set-up to execute quick diagnosis and corrective measures. The solution also comes with powerful visualization tools such as business views, 3d data center views, topology maps, heat maps, and customizable dashboards. Get proactive in capacity planning and decision-making with over 250 predefined reports covering all important metrics and areas in your network. Overall, OpManager's detailed management capabilities make it the ideal solution for IT administrators to achieve network resiliency and efficiency.

Site24x7 provides unified cloud monitoring to support IT operations and DevOps within small and large organizations. The solution monitors real users' experiences on websites and apps from both desktop and mobile devices. DevOps teams can monitor and troubleshoot applications and servers, as well as network infrastructure, including private clouds and public clouds, with in-depth monitoring capabilities. Monitoring the end-user experience is done from more 100 locations around the globe and via various wireless carriers.

FirstWave’s NMIS is a network management system that provides fault, performance, configuration management, performance graphs, and threshold alerts. Business rules allow for highly specific notification policies that can be used with multiple notification methods. FirstWave also 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.

Tired of juggling multiple tools for server and website monitoring? Meet Xitoring , the modern SaaS platform designed to streamline your infrastructure oversight. With just one CLI command, you can set up comprehensive monitoring for countless servers and websites in minutes—no complex configurations required. At its core, Xitoring uses Xitogent , a lightweight agent that collects critical performance data directly from your servers. This ensures real-time insights into system health, helping you identify potential issues before they become problems. By automating routine tasks, Xitoring saves you time and effort, allowing you to focus on innovation. Our global network of probing nodes keeps your systems under constant surveillance. From network outages to resource overloads, we detect anomalies instantly and notify the right person via customizable alerts. This proactive approach minimizes downtime, enhances reliability, and boosts customer satisfaction.

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 allows you to quickly find and solve problems. It scales them so that they can be derived either from on-premise, multi-cloud, or both. You now have the ability to use your entire IT stack and analytics to solve any problem, even those that are difficult to find. You can control and manage any technology and application with more than 500 plugins, including SAP, Oracle, Lotus or Citrix, Jboss, VMware, AWS and SQL Server.

Igiko Management Tools is a web-based software that allows remote access to, management and monitoring of physical or virtual machines within a permissions-based security model. Igiko comes with a built-in remote gateway that allows you establish connections to your computers and VMs. The web console supports HTML5 RDP control, which allows remote desktops to be accessed from any web browser. The Igiko application, unlike most RMM tools is an agentless service. To provide remote access, monitoring, management and remote access capabilities to all local computers or VMs, you can only install it on one machine. Configuring and accessing the application globally is easy with embedded web server and tunnel-provider clients that have a dedicated DNS address on Igiko server. Igiko is ideal to small and medium businesses, hosting providers and software development and engineering firms, as well as home users and virtual labs.

Azure Monitor enhances the reliability and efficiency of your applications and services by providing an all-encompassing framework for gathering, evaluating, and responding to telemetry from both cloud and on-premises settings. This tool enables you to gain insights into the performance of your applications while also proactively spotting potential problems that may impact them and their associated resources. By leveraging Azure Monitor, organizations can ensure better service quality and user satisfaction through timely interventions.

Sematext Cloud provides all-in-one observability solutions for modern software-based businesses. It provides key insights into both front-end and back-end performance. Sematext includes infrastructure, synthetic monitoring, transaction tracking, log management, and real user & synthetic monitoring. Sematext provides full-stack visibility for businesses by quickly and easily exposing key performance issues through a single Cloud solution or On-Premise.

Better Stack allows you to see inside any stack and debug any issue. Visualize the entire stack. Aggregate all your logs to structured data and query it like a database using SQL. Search, store and centralize your logs in a flash. Do not worry about archiving and rehydration. Dashboards that combine metrics from multiple sources to create a beautiful summary. Monitor everything, from websites to servers. Schedule on-call rotatings, get actionable notifications, and resolve incidents quicker than ever. Be notified by a platform that monitors infrastructures better. Our 30-second check will give you a screenshot and a second by second timeline of the error. We verify each HTTP and ping-based event from at least three locations before we alert. No more false alarms! We have you covered, whether it's monitoring your web page, APIs, pings, POP3, SMTP, IMAP, DNS, or general network monitoring.

IT performance monitoring does not just focus on monitoring CPU, memory, and network resources. eG Enterprise makes the user experience the center of your IT management and monitoring strategy. eG Enterprise allows you to measure the digital experience of your users and get deep visibility into the performance of the entire application delivery chain -- from code to user experiences to data center to cloud -- all from a single pane. You can also correlate performance across domains to pinpoint the root cause of problems proactively. eG Enterprise's machine learning and analytics capabilities enable IT teams to make smart decisions about right-sizing and optimizing for future growth. The result is happier users, increased productivity, improved IT efficiency, and tangible business ROI. eG Enterprise can be installed on-premise or as a SaaS service. Get a free trial of eG Enterprise today.

Checkmk is an IT monitoring system that allows system administrators, IT managers and DevOps teams, to quickly identify and resolve issues across their entire IT infrastructure (servers and applications, networks, storage and databases, containers, etc. Checkmk is used daily by more than 2,000 commercial customers worldwide and many other open-source users. Key product features * Service state monitoring with nearly 2,000 checks 'outside the box' * Event-based and log-based monitoring * Metrics, dynamic Graphing, and Long-Term Storage * Comprehensive reporting incl. Accessibility and SLAs * Flexible notifications and automated alert handling * Monitoring business processes and complex systems * Software and hardware inventory * Graphical, rule-based configuration and automated service discovery These are the top use cases * Server Monitoring * Network Monitoring * Application Monitoring * Database Monitoring * Storage Monitoring * Cloud Monitoring * Container Monitoring

Nagios Core, the monitoring and alerting engine, is the core application that powers hundreds of Nagios project development. Nagios Core is the event scheduler, event processor, alert manager, and monitor for elements. It has several APIs that can be used to extend its capabilities to do additional tasks. It is implemented in C for performance reasons and is designed to run natively under Linux/*nix systems.

Zabbix stands out as a premier enterprise-level tool created for the real-time observation of vast amounts of metrics gathered from numerous servers, virtual machines, and network devices. As an Open Source platform, Zabbix offers its powerful features at no cost. It automatically identifies problematic states within the incoming flow of metrics, eliminating the need for continuous manual monitoring. The built-in web interface allows for various visual presentations of your IT landscape, enhancing usability. With Zabbix's Event correlation mechanism, you can reduce the influx of repetitive notifications and concentrate on identifying the root causes of issues. It facilitates automated monitoring for large, dynamic environments and supports the development of a distributed monitoring system while maintaining centralized oversight. Furthermore, Zabbix can seamlessly integrate with all components of your IT infrastructure, and users can access its comprehensive functionalities from external applications via the Zabbix API. This integration capability ensures that Zabbix remains adaptable to a variety of operational needs.

VirtualMetric is a comprehensive data monitoring solution that provides organizations with real-time insights into security, network, and server performance. Using its advanced DataStream pipeline, VirtualMetric efficiently collects and processes security logs, reducing the burden on SIEM systems by filtering irrelevant data and enabling faster threat detection. The platform supports a wide range of systems, offering automatic log discovery and transformation across environments. With features like zero data loss and compliance storage, VirtualMetric ensures that organizations can meet security and regulatory requirements while minimizing storage costs and enhancing overall IT operations.

Telegraf is an open-source server agent that helps you collect metrics from your sensors, stacks, and systems. Telegraf is a plugin-driven agent that collects and sends metrics and events from systems, databases, and IoT sensors. Telegraf is written in Go. It compiles to a single binary and has no external dependencies. It also requires very little memory. Telegraf can gather metrics from a wide variety of inputs and then write them into a wide range of outputs. It can be easily extended by being plugin-driven for both the collection and output data. It is written in Go and can be run on any system without external dependencies. It is easy to collect metrics from your endpoints with the 300+ plugins that have been created by data experts in the community.

This tool provides you with an overview of your server environment. It can also help you save money on operation monitoring by predicting bottlenecks in your virtualized environment. You can also generate policy-based alerts and capacity reports, as well as load forecasts. These virtualization platforms are supported by the product: - IBM Power Systems - VMware Nutanix - Proxmox - Huawei FusionCompute - OracleVM - Oracle Solaris LDOM and CDOM, as well as the Global Zone - oVirt / RedHat Virtualization (RHV) - Microsoft Windows Server and Microsoft Hyper-V - XenServer, Citrix Hypervisor - Hitachi Compute blade - Amazon Web Services Google Cloud - Microsoft Azure - Kubernetes - Red Hat OpenShift Apache CloudStack - PostgreSQL database - Oracle Database - Microsoft SQL Server

AKIPS delivers the largest-scaling, fully featured, secure on-prem, multi-vendor network-monitoring system for the enterprise market. AKIPS Network Monitor provides unmatched features, scale and visibility of critical, real-time, and historical performance metrics and logs – from the heart of the data centre all the way to the end user. AKIPS allows network engineers to be proactive instead of firefighting, and to detect, analyse and rectify issues before any disruption to the business occurs.

Open source is a passion for engineers. We supercharged the top open-source monitoring tools, including Jaeger, Prometheus and ELK, and combined them into a scalable SaaS platform. You can collect and analyze all your logs, metrics, traces and other data on one platform for end to end monitoring. You can visualize your data using customizable and easy-to-use monitoring dashboards. Logz.io's AI/ML human-coach automatically detects and corrects any errors or exceptions in your logs. Alerting to Slack and PagerDuty, Gmail and other endpoints allows you to quickly respond to new events. Centralize your metrics at any scale on Prometheus-as-a-service. Unified with logs, traces. Just three lines of code are required to add to your Prometheus config file to start forwarding your metrics and data to Logz.io.

Cloud costs and features are constantly evolving, making it essential to have a reliable management solution. Let OpsNow take care of your cloud management needs, allowing you to concentrate on what truly matters! OpsNow enhances cloud administration, operational efficiency, and IT workflows through automation, cost management, analytical insights, and comprehensive monitoring. With OpsNow, users gain access to a single, cohesive tool that manages not only IDC but also various multi-cloud platforms, including AWS, Azure, and Aliyun. This eliminates the need to establish or enforce rules for each individual cloud environment. Additionally, you can oversee applications and resources across multiple cloud platforms from one central interface. OpsNow provides more frequent monitoring of systems and infrastructures than the Cloud service providers (CSP), setting a higher benchmark for customer requirements. Consequently, you can achieve a more profound insight into resource utilization with this detailed data, which surpasses the basic monitoring capabilities offered by CSPs. This allows you to make more informed decisions regarding your cloud strategy.

Enhance your metrics and alerting capabilities using a top-tier open-source monitoring tool. Prometheus inherently organizes all data as time series, which consist of sequences of timestamped values associated with the same metric and a specific set of labeled dimensions. In addition to the stored time series, Prometheus has the capability to create temporary derived time series based on query outcomes. The tool features a powerful query language known as PromQL (Prometheus Query Language), allowing users to select and aggregate time series data in real time. The output from an expression can be displayed as a graph, viewed in tabular format through Prometheus’s expression browser, or accessed by external systems through the HTTP API. Configuration of Prometheus is achieved through a combination of command-line flags and a configuration file, where the flags are used to set immutable system parameters like storage locations and retention limits for both disk and memory. This dual method of configuration ensures a flexible and tailored monitoring setup that can adapt to various user needs. For those interested in exploring this robust tool, further details can be found at: https://sourceforge.net/projects/prometheus.mirror/

With a simple command, you can install the monitoring agent across all your servers without any complex configurations, enabling you to begin monitoring in just minutes. This tool allows you to oversee your server's infrastructure usage effectively, helping to avert downtime and performance challenges. A collection of over 40 plugins is readily available, covering essential metrics like CPU, Process, Network, NGiNX, Disk I/O, and many others. Server logs play a crucial role in diagnosing problems and preventing them from occurring within your infrastructure. You can utilize our sophisticated log search feature or take advantage of the live tail option for real-time insights. Are you aware of the cleanliness of your IP space? It's important to ensure your emails avoid being marked as spam. Our user-friendly control panel is customizable, offering an enhanced and enjoyable experience. Additionally, we can monitor various endpoints including HTTP(S), TCP, and ICMP (ping), ensuring you receive immediate alerts about any downtime affecting your web services. By leveraging these features, you can maintain optimal performance and reliability across your entire server environment.

Manage the efficiency and performance of your cloud operations seamlessly. With NetApp Cloud, you gain comprehensive insight into your applications and infrastructure. Utilizing Cloud Insights, you can effectively monitor, troubleshoot, and enhance all resources across your entire tech stack, whether hosted on-premises or in the cloud. Safeguard your most crucial asset—data—from ransomware attacks by leveraging early detection systems and automated threat responses. You can also receive alerts about potential misuse or theft of vital intellectual property by malicious actors, both from within and outside your organization. Maintain corporate compliance through audits of access and usage patterns related to your essential data, whether it resides on-premises or in the cloud. Achieve full-stack visibility over your infrastructure and applications from a multitude of collectors, providing a centralized overview. You won’t have to rush to discover new monitoring solutions each time a novel platform is integrated into your organization, allowing you to focus on innovation and growth instead. This streamlined approach ensures that you can respond promptly to any challenges that may arise.