Free Nagios Alternatives for Linux

There are many alternatives to Nagios for Linux if you are looking for a replacement. The best free Linux alternative is Zabbix, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Nagios and many of them are free and available for Linux so hopefully you can find a suitable replacement. Other interesting free Linux alternatives to Nagios are Netdata, Icinga, Cockpit Project and LibreNMS.

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Alternatives list

  1. Zabbix icon

    Zabbix

     200 likes
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    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.

    119 Zabbix alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    • Self-Hosted
    • FreeBSD
    • OpenBSD
    Zabbix screenshot 1
     
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    32
    Comments about Zabbix as an Alternative to Nagios
    Guest
    Positive
    -1

    Innovative UI and complex functions.

    Review by a new / low-activity user.
    Nagios Icon
    Zabbix icon

    • Almost everyone thinks Zabbix is a great Nagios alternative.

    • Zabbix is the most popular Linux & Self-Hosted alternative to Nagios.

    • Zabbix is the most popular Open Source & free alternative to Nagios.

    • Zabbix is Free and Open SourceNagios is Freemium and Open Source
    • Zabbix is Privacy focusedNagios is not according to our users
  2. Netdata icon

    Netdata

     66 likes
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    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.

    48 Netdata alternatives

    Cost / License

    • Freemium (Subscription)
    • Proprietary (GPL-3.0)

    Application types

    Platforms

    • Mac
    • Linux
    • Online
    • BSD
    • Self-Hosted
    • C (programming language)
    • Python
    • GNU Bourne Again SHell
    systemd journal explorer
     
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    6
    Comments about Netdata as an Alternative to Nagios
    Guest
    Positive
    1

    Super fast monitoring of the system, and also of the monitors the kernel of the system.

    Review by a new / low-activity user.
    Nagios Icon
    Netdata icon

    • Most users think Netdata is a great Nagios alternative.

    • Netdata is the most popular Web-based & Mac alternative to Nagios.

    • Netdata is Freemium and ProprietaryNagios is Freemium and Open Source
    • Netdata is Lightweight and Privacy focusedNagios is not according to our users
  4. Icinga icon

    Icinga

     36 likes
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    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 awaited patches and features requested by the...

    65 Icinga alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application type

    Platforms

    • Mac
    • Linux
    Icinga screenshot 1
     
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    17
  5. Cockpit Project icon

    Cockpit Project

     39 likes
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    Makes it easy to administer Linux servers via a web browser. It allows you to easily perform simple tasks like storage administration, inspecting journals, starting & stopping services, monitoring & administering several servers at once.

    33 Cockpit Project alternatives

    Cost / License

    Application type

    Platforms

    • Linux
    • Flathub
    Cockpit Project screenshot 1
     
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    1
    Comments about Cockpit Project as an Alternative to Nagios
    Guest
    Negative
    0

    Cockpit is great for what it does, but if a host is offline, all information about it is inaccessible.

    Review by a new / low-activity user.
    Nagios Icon
    Cockpit Project icon
    • Cockpit Project is Free and Open SourceNagios is Freemium and Open Source
    • Cockpit Project is LightweightNagios is not according to our users
  6. LibreNMS icon

    LibreNMS

     37 likes
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    LibreNMS is an autodiscovering PHP/MySQL based network monitoring system forked from Observium. LibreNMS aims to be easy to use, painless to deploy, and support monitoring of a wide range of devices. Observium's license changed to a modified QPL license in May 2012, and...

    33 LibreNMS alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    • BSD
    • MySQL Community Edition
    • Apache HTTP Server
    • JavaScript
    • PHP
    LibreNMS screenshot 1
     
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    7
    Comments about LibreNMS as an Alternative to Nagios
    Guest
    Positive
    0

    Best open source tool that I've tried! Easy to install, manage and low support.

    Review by a new / low-activity user.
    Teke2
    Positive
    0

    So easy to setup, very powerful, and can use the Nagios plugins.

    Review by a new / low-activity user.
    Nagios Icon
    LibreNMS icon

    • Almost everyone thinks LibreNMS is a great Nagios alternative.

    • LibreNMS is Free and Open SourceNagios is Freemium and Open Source
  7. Monitorix icon

    Monitorix

     9 likes
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    Monitorix is a system monitoring tool designed to monitor as many services and system resources as possible. Due to its simplicity and small size it can also be used on embedded devices.

    Cost / License

    Application type

    Platforms

    • Linux
    Monitorix screenshot 1
     
  9. Pandora FMS icon

    Pandora FMS

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

    Cost / License

    • Freemium (Pay once or Subscription)
    • Open Source (GPL-2.0)

    Application type

    Platforms

    • Windows
    • Linux
    • Self-Hosted
    • FreeBSD
    • OpenBSD
    Pandora FMS visual console
     
  10. NetXMS icon

    NetXMS

     6 likes
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    NetXMS is an enterprise grade multi-platform open source network management and monitoring system. It provides comprehensive event management, performance monitoring, alerting, reporting and graphing for all layers of IT infrastructure — from network devices to business...

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Docker
    Proactive monitoring for hybrid systems
     
  11. Checkmk icon

    Checkmk

     19 likes
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    Checkmk is a monitoring tool of servers, applications, networks, cloud, containers, storage, databases, IoT and more. Checkmk is available as Raw Edition, which is 100% pure open source, and as Enterprise Edition with a lot of additional features.

    41 Checkmk alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source (GPL-2.0)

    Application type

    Platforms

    • Windows
    • Linux
    • Docker
    • Python
    Checkmk screenshot 1
     
  12. Cacti icon

    Cacti

     25 likes
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    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, data sources, and Round Robin archives in a...

    57 Cacti alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    • Linux
    Cacti screenshot 1
     
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    13
  13. Shinken icon

    Shinken

     10 likes
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    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.

    Cost / License

    Platforms

    • Windows
    • Linux
    • Python
     
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12 of 46 Nagios alternatives