Alternatives to Nagios for all platforms with any license

  • Zabbix icon

    Zabbix

    Gather and analyze accurate statistics and performance metrics, visualize it, get notified about current and potential issues without delay, and take advantage of our time-tested professional development and support.

    Open Source Linux Self-Hosted FreeBSD OpenBSD

  • Spiceworks icon

    Spiceworks

    Join millions of IT professionals and download Spiceworks, a free network monitoring software with network management tools, help desk ticketing app, network mapper and more. Spiceworks is the complete network monitoring &...

    Free Windows Web / Cloud Android Android Tablet

  • Icinga icon

    Icinga

    Icinga is a fork of Nagios and is backward compatible. So, Nagios configurations, plugins and addons can all be used with Icinga. Though Icinga retains all the existing features of its predecessor, it builds on them to add many long...

    Open Source Mac Linux

  • Munin icon

    Munin

    Munin is a networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems. It is designed to be very plug and play. A default installation provides a lot...

    Open Source Mac Windows Linux

  • Datadog icon

    Datadog

    Datadog is a monitoring service for IT, Dev & Ops teams who write and run applications at scale, and want to turn the massive amounts of data produced by their apps, tools and services into a unified view of IT infrastructure....

    Freemium Mac Windows Linux Web / Cloud

  • Monit icon

    Monit

    Monit is a free open source utility for managing and monitoring, processes, programs, files, directories and filesystems on a UNIX system. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in...

    Open Source Mac Linux BSD

  • PRTG Network Monitor icon

    PRTG Network Monitor

    An advanced network monitoring solution to monitor network up/downtime, traffic and usage. Features include availability, performance, and bandwidth monitoring (SNMP, WMI, packet sniffing, NetFlow), instant alerts, reporting, failover...

    Freemium Windows

  • Shinken icon

    Shinken

    Shinken is an open source computer system and network monitoring software application compatible with Nagios. It's written in Python and therefore is able to run on all platforms where a Python interpreter is available. In...

    Open Source Mac Windows Linux Android Android Tablet

  • PHP Server Monitor

    PHP Server Monitor is a script that checks whether your websites and servers are up and running. It comes with a web based user interface where you can manage your services and websites, and you can manage users for each server with a...

    Open Source Windows Linux BSD Self-Hosted PHP

  • Observium icon

    Observium

    Observium is an autodiscovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems including Cisco, Linux, FreeBSD, Juniper, Brocade, Foundry, HP and many more. ...

    Freemium Linux Web / Cloud BSD

  • Pulseway icon

    Pulseway

    Pulseway changes the enterprise monitoring and management game with its mobile management solution. Now you can receive alerts and manage your systems from anywhere on any device. Monitor and manage all of your Windows, Linux, and Mac...

    Commercial Mac Windows Linux Android iPhone Blackberry Windows RT Android Tablet Windows Phone iPad

  • Cacti icon

    Cacti

    Cacti is a complete frontend to RRDTool, it stores all of the necessary information to create graphs and populate them with data in a MySQL database. The frontend is completely PHP driven. Along with being able to maintain graphs...

    Open Source Windows Linux

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  • op5 Monitor icon

    op5 Monitor

    Our open and flexible server and network monitoring solution delivers a unified view of your entire IT environment.

    Freemium Linux iPhone iPad

    • Based on Naemon, a fork of Nagios. Can use all Nagios plugins.
      mfalkviddAug 2015 Disagree   Agree
  • Check_MK icon

    Check_MK

    Check_MK is comprehensive IT monitoring solution in the tradition of Nagios. Check_MK is available as Raw Edition, which is 100% pure open source, and as Enterprise Edition with a lot of additional features and professional support.

    Open Source Linux

  • NetData icon

    NetData

    NetData - Real-time performance monitoring, done right! NetData is the fastest way to visualize metrics. It is a resource efficient, highly optimized system for collecting and visualizing any type of real-time timeseries data, from...

    Open Source Linux C (programming language)

  • NetCrunch icon

    NetCrunch

    NetCrunch 9 is an all-in-one and agentless network, server, application, log, file and web monitoring suite. It runs on Windows Server and only needs 4GB of RAM and 4 cores.

    Commercial Mac Windows Linux Web / Cloud Self-Hosted

  • Zenoss Core icon

    Zenoss Core

    Zenoss (Zenoss Core) is an open source application, server and network management platform based on the Zope application server. Released under the GNU General Public License (GPL) version 2, Zenoss Core provides a web interface that...

    Open Source Mac Linux Android

  • Opsview Atom icon

    Opsview Atom

    Opsview Atom is ideal for personal use, SoHo setups, test or lab environments or just to get your hands dirty with all of Opsview's monitoring functionality!.

    Free Linux

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  • Dynatrace Ruxit icon

    Dynatrace Ruxit

    All-in-One monitoring solution that covers your entire application stack: • Application performance monitoring for Java, Node.js, PHP, & .NET • Web monitoring (real-user & synthetic) • Server & network monitoring •...

    Commercial Windows Linux Web / Cloud Android iPhone Chrome OS Android Tablet iPad

  • HappyApps icon

    HappyApps

    Sophisticated Uptime Monitoring for your Apps, DBs, IT systems, and business services. Get pro-active alerts and fix incidents with ease without the noise.

    Freemium Mac Windows Linux Web / Cloud

  • NAV icon

    NAV

    NAV (Network Administration Visualized) is a free software program to monitor networks, developed by UNINETT and used by universities and corporations around the world. It automatically discovers network topology, monitors network...

    Open Source Linux Self-Hosted

  • Cabot

    Self-hosted, easily-deployable monitoring and alerts service - like a lightweight PagerDuty.

    Open Source Self-Hosted

  • Opsview Enterprise icon

    Opsview Enterprise

    Opsview is award winning unified service monitoring software for complex, distributed IT infrastructures.

    Commercial Windows Linux

  • Monitis icon

    Monitis

    Monitis is a Cloud monitoring and IT analytics service offering Website Monitoring, Server Monitoring, Network Monitoring, Application Monitoring, Cloud Monitoring, and Custom Monitoring.

    Freemium Web / Cloud

  • Port Monitor icon

    Port Monitor

    Port Monitor is an easy and online tool that does website and server monitoring for you 24/7 every 60 seconds and sends you or your co-workers instant email/push notifications when something goes wrong. It records uptime...

    Freemium Web / Cloud

  • OpenNMS icon

    OpenNMS

    OpenNMS is an enterprise grade network monitoring and network management platform developed under the free software or open source model. It consists of a community-supported, free-software project as well as an organization offering...

    Open Source Mac Windows Linux

  • Sensu Core icon

    Sensu Core

    The Sensu Open Source Project (a.k.a. "Sensu Core") intends to provide an open framework for building comprehensive monitoring solutions, without imposing restrictions or being overly opinionated. While new user-facing...

    Free Personal Linux

  • The Dude icon

    The Dude

    The Dude network monitor is a new application by MikroTik which can dramatically improve the way you manage your network environment. It will automatically scan all devices within specified subnets, draw and layout a map of your...

    Free Windows

  • Pandora FMS icon

    Pandora FMS

    Enterprise-ready monitoring solution that provides unparalleled flexibility for IT to address both immediate and unforeseen operational issues, including infrastructure and IT processes.

    Open Source Windows Linux Self-Hosted FreeBSD OpenBSD

  • CoScale icon

    CoScale

    Full stack web performance monitoring. Includes server, container, application, and end-user monitoring, powered by anomaly detection.

    Commercial Mac Windows Linux Web / Cloud

  • IT Asset Tool icon

    IT Asset Tool

    Free Software Asset Management, Inventory software and hardware in your Company. It's Easy, Fast and Free!!.

    Free Windows

  • SolarWinds Server & Application Monitor icon

    SolarWinds Server & Application Monitor

    Server and application performance monitoring has never been easier or more affordable. With agentless monitoring for hundreds of applications and hardware types, Server & Application Monitor delivers the management, alerting, and...

    Commercial Windows

  • Axibase Time Series Database icon

    Axibase Time Series Database

    ATSD is purpose-built for analyzing and reporting on massive volumes of time-series data collected at high frequency. Features include data analytics, visualization, data forecasting, reporting, alerting. All in one product built for...

    Free Linux Self-Hosted

  • Wolfpack

    Wolfpack aims to be the "swiss army knife" of monitoring. To borrow a line from Etsy..."if it moves we monitor it, even if it doesn't move we'll monitor it just in case it makes a break for it!". ...

    Open Source Windows

  • AppBeat icon

    AppBeat

    We monitor your websites and alert you when they fail (failure is confirmed from multiple probe locations). Integrated also public status page module for your users and customers. You can sign up for free (we give you five free 5...

    Freemium Web / Cloud

Nagios Comments

Icinga 2 is a great alternative to Nagios

Negative Comment by nathanmarcarelli
about Nagios Nov 2016

Icinga 2 is a great alternative to Nagios

n 2009, a group of Nagios community developers left to create a better network monitoring tool – Icinga. Also released as Open Source, Icinga better reflects the wishes of the community and changing needs of the IT marketplace. Icinga overcomes many obstacles found within Nagios and continues to demonstrate a pattern of growth, releasing new versions every few months.

  • With Icinga 2, the developers rewrote the core code, correcting many shortcomings like improving complicated configuration and improving scalability limitations in large deployments.
  • Icinga 2’s core was also rewritten in C++ with a new component-loader architecture and process for executing monitoring checks. Worldwide market acceptance of Icinga 2 has been overwhelming.
  • Icinga 2 can use the broad array of common Nagios monitoring plugins, whether they run on the monitoring server or on the local client.
  • The Icinga Web 2 interface is more flexible and extensible than the basic grid interface provided by Nagios.
  • The rewrite of Nagios (Icinga 1) significantly improved the efficiency of the monitoring code, and in the redesign we know as Icinga 2 this has been retained as a key design principle.
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