Best Free Server Monitoring Software
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Compare the Top Free Server Monitoring Software as of July 2025
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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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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
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 -
3
ManageEngine OpManager
ManageEngine
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.Starting Price: $95.00/one-time -
4
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 -
5
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 -
6
ManageEngine Applications Manager
ManageEngine
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 -
7
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 -
8
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 -
9
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 -
10
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 -
11
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 -
12
WebSitePulse
WebSitePulse
WebSitePulse provides independent, remote monitoring of your web assets. Some of the most used services are uptime monitoring, website monitoring, server monitoring, web transaction monitoring.Starting Price: Free -
13
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. -
14
VirtualMetric
VirtualMetric
VirtualMetric is a powerful telemetry pipeline solution designed to enhance data collection, processing, and security monitoring across enterprise environments. Its core offering, DataStream, automatically collects and transforms security logs from a wide range of systems such as Windows, Linux, MacOS, and Unix, enriching data for further analysis. By reducing data volume and filtering out non-meaningful logs, VirtualMetric helps businesses lower SIEM ingestion costs, increase operational efficiency, and improve threat detection accuracy. The platform’s scalable architecture, with features like zero data loss and long-term compliance storage, ensures that businesses can maintain high security standards while optimizing performance.Starting Price: Free -
15
Telegraf
InfluxData
Telegraf is the open source server agent to help you collect metrics from your stacks, sensors and systems. Telegraf is a plugin-driven server agent for collecting and sending metrics and events from databases, systems, and IoT sensors. Telegraf is written in Go and compiles into a single binary with no external dependencies, and requires a very minimal memory footprint. Telegraf can collect metrics from a wide array of inputs and write them into a wide array of outputs. It is plugin-driven for both collection and output of data so it is easily extendable. It is written in Go, which means that it is a compiled and standalone binary that can be executed on any system with no need for external dependencies, no npm, pip, gem, or other package management tools required. With 300+ plugins already written by subject matter experts on the data in the community, it is easy to start collecting metrics from your end-points.Starting Price: $0 -
16
Exoprise Service Watch
Exoprise
Service Watch allows Digital Experience Monitoring (DEM) for apps, services, and the networks they rely on. Active and passive monitoring in one holistic solution provides IT with complete visibility and boosts employee productivity. Troubleshoot network performance, detect service provider outages, and capture real user experience for any application, anywhere.Starting Price: $100/month/sensor -
17
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 -
18
Server Check
FearWorks Media Ltd.
The Server Check Monitoring System continually monitors your websites and other internet-based services (Ping, SMTP, IMAP, FTP, etc.) and makes sure you're the first to know when there's an outage. Don't lose any more visitors to downtime. Our FREE 10-monitor version of Server Check lets you get started with monitoring in less than five minutes completely free! Get alerted as soon as something stops working: visual alerts, audible alarms, emails and SMS texts to as many admins as you need. Server Check makes sure you know about it so you can fix it! Quick setup of all common protocols, including HTTP & HTTPS, Ping, FTP, SMTP, POP3, IMAP, TCP, MySQL. Monitor them all and stay ahead of any long outages that might lose customers! View statistics for each monitor, response time graphs, outage length reports, web-based stats and uptime pages, and keep track of uptime and downtime over the last 12 months.Starting Price: Free -
19
Prometheus
Prometheus
Power your metrics and alerting with a leading open-source monitoring solution. Prometheus fundamentally stores all data as time series: streams of timestamped values belonging to the same metric and the same set of labeled dimensions. Besides stored time series, Prometheus may generate temporary derived time series as the result of queries. Prometheus provides a functional query language called PromQL (Prometheus Query Language) that lets the user select and aggregate time series data in real time. The result of an expression can either be shown as a graph, viewed as tabular data in Prometheus's expression browser, or consumed by external systems via the HTTP API. Prometheus is configured via command-line flags and a configuration file. While the command-line flags configure immutable system parameters (such as storage locations, amount of data to keep on disk and in memory, etc.). Download: https://sourceforge.net/projects/prometheus.mirror/Starting Price: Free -
20
Nixstats
Nixstats
Just a one line command to install the monitoring agent on all your servers. No complicated setups, get started within minutes. Keep track of your servers infrastructure usage and prevent downtime and performance issues. Over 40 plugins available out-of-the-box such as CPU, Process, Network, NGiNX, Disk I/O and much more. Server logs are essential to diagnose and prevent issues on your server infrastructure. Use our advanced log search or use the live tail feature. Do you know if you're keeping a clean IP space? Ensure that your e-mail will not end up in the spam folder. Our control panel is customizable and easy to use, providing a better and more enjoyable user experience. We can monitor HTTP(S), TCP as well as ICMP (ping) endpoints, be the first to know about downtime of your web endpoints.Starting Price: $9.95 per month -
21
NetApp Cloud Insights
NetApp
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 -
22
Happy Apps
HappyApps
Setup and monitor a wide variety of checks within seconds that include website, ping, socket, databases, messaging queues, application servers, to custom checks. Setup alerts (SMS & Email) with ease. Unique noise reduction technology dramatically cuts unnecessary alerts by consolidating related incidents, muting systems with known issues, and minimizing false positives. Get status and real-time visibility across your Apps and Business Services. Clearly displays open incidents and issues that require your attention. Group and monitor multiple Apps and IT systems that include Databases, web servers, App servers, and messaging queues as a single App. Happy Apps delivers an overall status for the App along with status for each individual member of the group. Users also get to view dependency maps between individual IT systems and how they impact other Apps.Starting Price: $9.95 per month -
23
Ploi
Ploi.io
Meet Ploi, the tool that makes a developer's life easier. We take all the difficult work out of your hands, so you can focus on doing what you love: developing your application.Starting Price: €8 per month -
24
Sedai
Sedai
Sedai is an autonomous cloud management platform powered by AI/ML delivering continuous optimization for cloud operations teams to maximize cloud cost savings, performance and availability at scale. Sedai enables teams to shift from static rules and threshold-based automation to modern ML-based autonomous operations. Using Sedai, organizations can reduce cloud cost by up to 50%, improve performance by up to 75%, reduce failed customer interactions (FCIs) by 75% and multiply SRE productivity by up to 6X for their modern applications. Sedai can perform work equivalent to a team of cloud engineers working behind the scenes to optimize resources and remediate issues, so organizations can focus on innovation.Starting Price: $10 per month -
25
360 Monitoring
360 Monitoring
Configurable dashboards, easy set-up, & custom tools, your 360° server uptime solution. Keep track of your online business assets with confidence, supported by world-class internal and external system monitoring. Track server metrics like CPU, network, memory, & disk usage, and pinpoint issues at the source. Protect your sites from malicious IPs to improve your sender reputation and email deliverability. Perform scans in the log files of your applications to receive data on their performance. Discover a catalog of top plugins and even write your own with the open source 360 agent. Measure your site uptime, performance, and health with scans at regular intervals. In one click, analyze your site from 26 locations worldwide to ensure top customer experience everywhere. Get notified via your favorite app. Be the first to know when your site is down or performing poorly. Check entire websites and portals for quality and identify errors with this unique crawler.Starting Price: $3.99 per month -
26
Monitor.us
Monitor.us
Monitor.Us is a free, cloud-based IT systems monitoring service that provides comprehensive visibility into your website, server, network, and application performance. Its all-in-one dashboard allows you to monitor website uptime and response times, server health, network performance, and custom metrics from anywhere, facilitating quick identification and resolution of issues affecting your online presence. The platform offers features such as full-page load monitoring, which assesses how long it takes to load a complete HTML page in real browsers, and mobile monitoring, enabling you to stay informed on the go with alerts sent to your Android and iOS devices, as well as via text and email. Monitor.Us supports various protocols, including HTTP, HTTPS, PING, DNS, SMTP, POP3, IMAP, TCP, UDP, and ICMP, ensuring comprehensive monitoring capabilities. It provides instant failure alerts through email, instant messaging, SMS, or live voice, and offers detailed reporting.Starting Price: Free -
27
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 -
28
Nagios XI
Nagios Enterprises, LLC
Provides monitoring of all mission-critical infrastructure components including applications, services, operating systems, network protocols, systems metrics, and network infrastructure. Hundreds of third-party addons provide for monitoring of virtually all in-house applications, services, and systems. Provides a central view of your entire IT operations network and business processes. Powerful dashboards provide at-a-glance access to powerful monitoring information and third-party data. Views provide users with quick access to the information they find most useful. Automated, integrated trending and capacity planning graphs allow organizations to plan for infrastructure upgrades before outdated systems catch them by surprise. Alerts are sent to IT staff, business stakeholders, and end-users via email or mobile text messages, providing them with outage details so they can start resolving issues immediately.Starting Price: $1995.00/one-time -
29
Instrumental
Expected Behavior
Over and over again, we were consulting on software projects that couldn’t confidently answer “Is the application working correctly right now?” It’s not that they didn’t have monitoring tools. It’s not that they didn’t have smart people on their team. They always did. When it came down to it, the available tools just weren’t answering the right questions about the technical health of the software. “Turn-key” monitoring sounds great and it’s easy to set up, but if it doesn’t actually answer questions then it’s just wasting money. Instrumental is application and server monitoring that fits like a glove. Everything that’s unique, interesting, and important about your software is now effortless to monitor. It has a powerful query language for answering questions, incredible visualizations, first-class sharing features, and it’s affordable to both small companies and the world’s largest enterprises.Starting Price: $5.00/month -
30
NGINX
F5
NGINX Open Source: The open source web server that powers more than 400 million websites. NGINX Plus is a software load balancer, web server, and content cache built on top of open source NGINX. Use NGINX Plus instead of your hardware load balancer and get the freedom to innovate without being constrained by infrastructure. Save more than 80% compared to hardware ADCs, without sacrificing performance or functionality. Deploy anywhere: public cloud, private cloud, bare metal, virtual machines, and containers. Save time by performing common tasks through the built‑in NGINX Plus API. From NetOps to DevOps, modern app teams need a self‑service, API‑driven platform that integrates easily into CI/CD workflows to accelerate app deployment – whether your app has a hybrid or microservices architecture – and makes app lifecycle management easier.