List of the Top 25 Free Server Monitoring Software in 2025

New Relic provides robust Server Monitoring solutions tailored for enterprises, delivering an extensive platform to oversee and enhance server infrastructure. Aimed at large-scale operations, our integrated data platform consolidates telemetry from servers, offering sophisticated full-stack analysis tools that yield in-depth insights into performance, health, and resource usage. With features like real-time monitoring, automated notifications, and customizable dashboards, New Relic empowers you to take a proactive approach in managing your servers, optimizing resource distribution, and guaranteeing optimal performance and reliability. Streamline your server oversight, boost operational efficiency, and acquire valuable insights with New Relic's cutting-edge Server Monitoring offerings.

Site24x7 offers an integrated cloud monitoring solution designed to enhance IT operations and DevOps for organizations of all sizes. This platform assesses the actual experiences of users interacting with websites and applications on both desktop and mobile platforms. DevOps teams benefit from capabilities that allow them to oversee and diagnose issues in applications and servers, along with monitoring their network infrastructure, which encompasses both private and public cloud environments. The comprehensive end-user experience monitoring is facilitated from over 100 locations worldwide, utilizing a range of wireless carriers to ensure thorough coverage and insight into performance. By leveraging such extensive monitoring features, organizations can significantly improve their operational efficiency and user satisfaction.

Paessler PRTG offers a comprehensive monitoring solution characterized by its easy-to-navigate interface, which is driven by an advanced monitoring engine. By streamlining connections and managing workloads efficiently, it helps to lower operational expenses and avert potential outages. Additionally, it enhances time management and ensures compliance with service level agreements (SLAs). The platform is equipped with an array of specialized monitoring capabilities, including customizable alerting, cluster failover mechanisms, distributed monitoring, as well as detailed maps and dashboards, all complemented by extensive reporting functionalities. With its robust features, PRTG empowers organizations to maintain optimal performance and address issues proactively.

ManageEngine OpManager is a powerful tool designed for monitoring server performance, offering real-time analytics for both physical and virtual servers. It monitors essential metrics, including CPU utilization, memory usage, disk availability, and network performance, allowing IT teams to quickly detect and address potential issues. With capabilities such as proactive notifications, automated fault identification, and comprehensive reporting, OpManager helps ensure maximum server uptime and reliability. Its customizable dashboards and user-friendly interface improve visibility and simplify server management, making it a vital resource for maintaining optimal server efficiency.

Uptrends focuses on enhancing cloud-based website performance by monitoring the uptime, functionality, and overall performance of your websites and APIs. Their continuous 24/7 monitoring service actively tests your site and oversees complex transactions. In today's digital landscape, the Internet can be unpredictable, with issues arising that can disrupt service or slow down operations. Uptrends alerts you promptly when these issues occur and provides detailed insights into what went wrong. Experience the benefits of Uptrends by signing up for a 30-day free trial and ensuring your online presence remains robust and reliable. Don't miss the opportunity to safeguard your website's performance!

Pandora FMS boasts over 50,000 installations worldwide, making it a comprehensive monitoring solution that addresses various traditional monitoring sectors such as servers, networks, applications, logs, synthetic transactions, remote management, and inventory. This platform enables swift identification and resolution of issues, effectively scaling to accommodate both on-premise and multi-cloud environments. With Pandora FMS, users can leverage their entire IT infrastructure and analytical tools to tackle even the most elusive problems. Additionally, it offers extensive control over a wide range of technologies and applications through its collection of more than 500 plugins, which support systems like SAP, Oracle, Lotus, Citrix, Jboss, VMware, AWS, and SQL Server. Consequently, organizations can ensure optimal performance and reliability across their entire technology ecosystem.

Keep a close eye on your servers, containers, and applications with high-resolution, real-time monitoring. Netdata gathers metrics every second and showcases them through stunning low-latency dashboards. It is built to operate across all your physical and virtual servers, cloud environments, Kubernetes clusters, and edge/IoT devices, providing comprehensive insights into your systems, containers, and applications. The platform is capable of scaling effortlessly from just one server to thousands, even in intricate multi/mixed/hybrid cloud setups, and can retain metrics for years if sufficient disk space is available. KEY FEATURES: - Gathers metrics from over 800 integrations - Real-Time, Low-Latency, High-Resolution - Unsupervised Anomaly Detection - Robust Visualization - Built-In Alerts - systemd Journal Logs Explorer - Minimal Maintenance Required - Open and Extensible Framework Identify slowdowns and anomalies in your infrastructure using thousands of metrics collected per second, paired with meaningful visualizations and insightful health alerts, all without needing any configuration. Netdata stands out by offering real-time data collection and visualization along with infinite scalability integrated into its architecture. Its design is both flexible and highly modular, ready for immediate troubleshooting with no prior knowledge or setup needed. This unique approach makes it an invaluable tool for maintaining optimal performance across diverse environments.

Are you overwhelmed by managing various tools for monitoring your servers and websites? Introducing Xitoring, an innovative SaaS solution that simplifies your infrastructure management. With a single command in the CLI, you can effortlessly establish extensive monitoring for numerous servers and websites in just a few minutes—eliminating the need for complicated setups. At the heart of Xitoring lies Xitogent, a nimble agent that gathers essential performance metrics directly from your servers. This capability provides you with real-time visibility into system performance, allowing you to spot potential issues before they escalate. By automating everyday tasks, Xitoring frees up your time and energy, enabling you to concentrate on driving innovation. Our worldwide network of probing nodes ensures that your systems are monitored continuously. Whether it’s detecting network failures or pinpointing resource shortages, we identify irregularities immediately and send alerts to the appropriate personnel through customizable notifications. This proactive stance not only reduces downtime but also improves overall reliability and enhances customer satisfaction. As a result, you can maintain a robust infrastructure while focusing on growing your business.

ManageEngine Applications Manager is a robust solution designed for enterprises to oversee their entire application ecosystem effectively. This platform empowers IT and DevOps teams to gain visibility into all the interconnected components of their application stack. With Applications Manager, monitoring the performance of essential online applications, web servers, databases, cloud services, middleware, ERP systems, communication elements, and various other systems becomes straightforward. It offers a diverse array of features aimed at streamlining the troubleshooting process, significantly reducing mean time to resolution (MTTR). This tool is invaluable for identifying and addressing performance issues proactively, preventing potential disruptions for end users. The platform includes a comprehensive dashboard that can be tailored to display immediate performance metrics. By establishing alerts, the monitoring solution continuously evaluates the application stack for any performance anomalies, ensuring that the relevant personnel are informed promptly. Furthermore, Applications Manager enhances performance data interpretation by integrating advanced machine learning capabilities, transforming raw data into actionable insights that drive performance improvement. This not only aids in maintaining operational efficiency but also supports strategic decision-making processes.

Sematext Cloud offers comprehensive observability tools tailored for contemporary software-driven enterprises, delivering crucial insights into the performance of both the front-end and back-end systems. With features such as infrastructure monitoring, synthetic testing, transaction analysis, log management, and both real user and synthetic monitoring, Sematext ensures businesses have a complete view of their systems. This platform enables organizations to swiftly identify and address significant performance challenges, all accessible through a unified cloud solution or an on-premise setup, enhancing overall operational efficiency.

Monitoring IT performance extends beyond simply tracking CPU, memory, and network usage. With eG Enterprise, the focus shifts to enhancing the user experience, which becomes a pivotal element of your IT management and monitoring approach. This platform provides the capability to evaluate users' digital experiences and offers comprehensive insights into the performance of the entire application delivery pipeline—from the underlying code to user interactions, encompassing both data centers and cloud environments—accessible through a unified interface. Additionally, eG Enterprise allows for the correlation of performance metrics across various domains, enabling proactive identification of underlying issues. Leveraging machine learning and analytical tools, IT teams can make informed decisions regarding optimization and resource allocation for anticipated growth. Consequently, this leads to more satisfied users, heightened productivity, increased IT operational efficiency, and measurable business returns. Moreover, eG Enterprise is versatile in deployment, being available for both on-premise installation and as a Software as a Service (SaaS) offering. Start your journey towards enhanced IT performance by signing up for a free trial of eG Enterprise today, and experience the transformation firsthand.

Checkmk serves as a robust IT monitoring solution that empowers system administrators, IT managers, and DevOps teams to swiftly detect and address problems within their entire IT ecosystem, encompassing servers, applications, networks, storage, databases, and containers. Over 2,000 commercial clients globally, along with a multitude of open-source users, rely on Checkmk for their daily monitoring needs. Some of the key features of the product include service state monitoring with nearly 2,000 pre-configured checks, event and log monitoring, comprehensive metric tracking with dynamic graphing and long-term storage capabilities, as well as in-depth reporting that covers accessibility and service level agreements (SLAs). Additionally, Checkmk offers flexible notification options accompanied by automated alert management, monitoring for complex systems and business processes, a thorough inventory of both software and hardware, and a graphical, rule-based configuration that facilitates automated service discovery. The primary applications of Checkmk encompass various monitoring activities, including server, network, application, database, storage, cloud, and container monitoring. This versatility makes it an essential tool for organizations seeking to enhance their IT infrastructure's reliability and performance. By utilizing Checkmk, teams can ensure that their systems are always running optimally and can respond proactively to potential issues before they escalate.

WebSitePulse provides the ability to remotely and autonomously track your online assets. Among its most sought-after services are uptime tracking, website oversight, and server surveillance. This ensures that businesses can maintain optimal performance and promptly address any issues.

Zabbix is recognized as a leading enterprise-grade tool designed to monitor extensive metrics in real-time, collected from a diverse range of servers, virtual machines, and network devices. Being an Open Source solution, it provides its robust capabilities at no charge. The platform smartly detects issues within the incoming data flow, which negates the need for constant manual oversight. Its integrated web interface presents various visualizations of your IT environment, thereby improving accessibility and user experience. Additionally, Zabbix features an Event correlation mechanism that minimizes repetitive alerts, allowing users to focus on diagnosing the underlying causes of problems. It is particularly effective for automated monitoring in large, evolving environments and supports the establishment of a distributed monitoring framework while ensuring centralized management. Moreover, Zabbix can easily integrate with all aspects of your IT ecosystem, and its extensive functionalities are accessible from external applications through the Zabbix API, highlighting its flexibility to meet diverse operational demands. This adaptability makes Zabbix a valuable asset for organizations seeking to optimize their monitoring processes.

VirtualMetric is a cutting-edge telemetry pipeline and security monitoring platform designed to provide enterprise-level data collection, analysis, and optimization. Its flagship solution, DataStream, simplifies the process of collecting and enriching security logs from a variety of systems, including Windows, Linux, and MacOS. By filtering out non-essential data and reducing log sizes, VirtualMetric helps organizations cut down on SIEM ingestion costs while improving threat detection and response times. The platform’s advanced features, such as zero data loss, high availability, and long-term compliance storage, ensure businesses can handle increasing telemetry volumes while maintaining robust security and compliance standards. With its comprehensive access controls and scalable architecture, VirtualMetric enables businesses to optimize their data flows and bolster their security posture with minimal manual intervention.

Telegraf serves as an open-source server agent designed to efficiently gather metrics from various sensors, stacks, and systems. Acting as a plugin-centric agent, it not only collects but also transmits metrics and events from a diverse array of sources including systems, databases, and IoT devices. Engineered in Go, it compiles into a single binary, requiring no external dependencies and consuming minimal memory. Telegraf supports a vast range of input sources, allowing for the seamless writing of data to numerous output destinations. With its plugin architecture, it is effortlessly extendable for both data collection and output purposes. Additionally, Telegraf boasts over 300 plugins developed by community data experts, making the collection of metrics from your endpoints a straightforward task. This flexibility and community support make Telegraf an invaluable tool for monitoring and performance analysis.

Service Watch offers Digital Experience Monitoring (DEM) that encompasses applications, services, and the underlying networks they rely on. By integrating both passive and active monitoring into a comprehensive solution, IT teams can achieve total visibility and enhance employee productivity. This powerful tool enables the identification of network performance issues and the prompt detection of outages, ensuring seamless operational continuity. Additionally, it empowers organizations to make informed decisions based on real-time data insights.

This application offers a comprehensive summary of your server environment while also assisting in reducing operational monitoring costs by forecasting potential bottlenecks within your virtualized setup. Additionally, it allows for the creation of alerts based on specific policies, capacity assessments, and predictions regarding load. The following virtualization platforms can be utilized with this tool: - IBM Power Systems - VMware - Nutanix - Proxmox - Huawei FusionCompute - Oracle VM - Oracle Solaris LDOM and CDOM, including the Global Zone - oVirt / Red Hat Virtualization (RHV) - Microsoft Windows Server and Hyper-V - XenServer and Citrix Hypervisor - Hitachi Compute Blade Moreover, it supports various cloud services such as Amazon Web Services, Google Cloud, and Microsoft Azure, along with container orchestration platforms like Kubernetes and Red Hat OpenShift, as well as Apache CloudStack. Lastly, the tool is compatible with several databases, including PostgreSQL, Oracle Database, and Microsoft SQL Server, ensuring a wide range of applications for users.

The Server Check Monitoring System offers continuous oversight of your websites and various online services, such as Ping, SMTP, IMAP, and FTP, ensuring you're promptly informed of any disruptions. Protecting your traffic from the repercussions of downtime is crucial, and with Server Check's free version, which accommodates up to 10 monitors, you can begin your monitoring journey in just five minutes! When issues arise, alerts are dispatched to all administrators through email, SMS, and visual notifications, enabling you to swiftly address problems as they occur. The system allows for easy configuration of essential protocols like HTTP and HTTPS, empowering you to monitor all aspects of your online presence and prevent potential outages that might frustrate customers. Additionally, you can access detailed statistics for each monitor, including response time graphs, reports on outage durations, and overall web-based performance metrics. Furthermore, the platform includes the ability to analyze both uptime and downtime trends over a comprehensive 12-month period, ensuring you maintain optimal service availability. This proactive approach to monitoring can significantly enhance your website's reliability and customer satisfaction.

Elevate your monitoring and alerting strategies by utilizing a leading open-source tool known as Prometheus. This powerful platform organizes its data in the form of time series, which are essentially sequences of values linked to specific timestamps, metrics, and labeled dimensions. Beyond the stored time series, Prometheus can generate temporary derived time series based on the results of queries, enhancing versatility. Its querying capabilities are powered by PromQL (Prometheus Query Language), which enables users to real-time select and aggregate data from time series. The results from these queries can be visualized as graphs, presented in a table format via Prometheus's expression browser, or retrieved by external applications through its HTTP API. To configure Prometheus, users can employ both command-line flags and a configuration file, where flags define unchangeable system parameters such as storage locations and retention thresholds for disk and memory. This combination of configuration methods offers a customized monitoring experience that can accommodate a variety of user requirements. If you’re keen on delving deeper into this feature-rich tool, additional information is available at: https://sourceforge.net/projects/prometheus.mirror/. With Prometheus, you can achieve a level of monitoring sophistication that optimizes performance and responsiveness.

With a straightforward command, you can deploy the monitoring agent on all your servers swiftly, eliminating the need for intricate configurations and allowing you to start monitoring within minutes. This tool empowers you to effectively track your server's infrastructure usage, which is vital for preventing downtime and addressing performance issues. You will find a suite of over 40 plugins readily available that encompass key metrics such as CPU, Process, Network, NGiNX, Disk I/O, among others. Server logs are essential for identifying and preventing issues in your infrastructure, so you can utilize our advanced log search feature or opt for the live tail option to gain real-time insights. Moreover, understanding the cleanliness of your IP space is crucial to ensure your emails do not end up in spam folders. Our intuitive control panel can be customized, providing a streamlined and enjoyable user experience. Furthermore, we offer monitoring for various endpoints including HTTP(S), TCP, and ICMP (ping), ensuring you receive timely alerts about any downtime that might impact your web services. By taking advantage of these robust features, you can uphold optimal performance and reliability throughout your entire server environment while having peace of mind knowing that your systems are being actively monitored. The combination of real-time insights and customizable options makes this tool an invaluable asset for any server administrator.

Effortlessly optimize the effectiveness and performance of your cloud operations. By utilizing NetApp Cloud, you obtain a detailed understanding of both your applications and infrastructure. With the help of Cloud Insights, you are equipped to monitor, troubleshoot, and enhance resources throughout your entire technology stack, regardless of whether they are on-premises or in the cloud. Protect your most valuable asset—data—from ransomware threats by employing proactive detection systems and automated responses to security incidents. Additionally, you will receive notifications regarding any potential misuse or theft of critical intellectual property by malicious entities, whether they originate from inside or outside your organization. Ensure corporate compliance by conducting audits of access and usage patterns linked to your vital data, whether it is stored on-premises or in the cloud. Achieve comprehensive visibility of your infrastructure and applications through various collectors, which provide a unified overview. This means that you won’t need to scramble to find new monitoring solutions each time a new platform is introduced, enabling you to concentrate on innovation and growth. Moreover, this efficient process empowers you to react swiftly to any emerging challenges, ensuring your operations run smoothly.

Quickly implement and manage a wide range of monitoring checks, including website uptime, ping metrics, socket connections, databases, messaging queues, application servers, and bespoke configurations. Seamlessly set up alerts through SMS and email notifications. A groundbreaking noise reduction mechanism effectively minimizes irrelevant alerts by consolidating similar events, silencing known issues, and decreasing the frequency of false positives. This system provides clear insights into the health and real-time status of your applications and business services, highlighting open incidents that require your attention. You can monitor and group various applications and IT systems such as databases, web servers, application servers, and messaging queues as a single cohesive application. Happy Apps offers an overall health summary for the collective application along with the individual status of each component. Moreover, users can delve into dependency maps that depict how different IT systems interact with one another, thereby deepening their understanding of these relationships. This all-encompassing strategy guarantees that users possess a complete perspective of their IT landscape, which aids in more informed decision-making and expedites the resolution of issues. Enhanced visualization tools further empower users to track performance trends over time.

Ploi is an innovative tool designed to simplify the workflow for developers. By handling the more tedious aspects of development, Ploi allows you to focus on your passion: creating and enhancing your application to its fullest potential.

Sedai adeptly locates resources, assesses traffic trends, and understands metric performance, enabling continuous management of production environments without the need for manual thresholds or human involvement. Its Discovery engine adopts an agentless methodology to automatically recognize all components within your production settings while efficiently prioritizing monitoring data. Furthermore, all your cloud accounts are consolidated onto a single platform, allowing for a comprehensive view of your cloud resources in one centralized location. You can seamlessly integrate your APM tools, and Sedai will discern and highlight the most critical metrics for you. With the use of machine learning, it automatically establishes thresholds, providing insight into all modifications occurring within your environment. Users are empowered to monitor updates and alterations and dictate how the platform manages resources, while Sedai's Decision engine employs machine learning to analyze vast amounts of data, ultimately streamlining complexities and enhancing operational clarity. This innovative approach not only improves resource management but also fosters a more efficient response to changes in production environments.