Nagios Alternatives

One of the most popular alternatives to Nagios is Zabbix, which is free and open source. Other popular alternatives are Beszel, Netdata, Datadog and Better Stack. There's no shortage of Network Monitors like Nagios, with more than 100 alternatives for Linux, Windows, the web, self-hosting and Mac.

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Alternatives
Nagios alternatives page was last updated

Alternatives list

  1. An open source status page for you to selfhost.

    Cost / License

    Application type

    Platforms

    • Self-Hosted
    • Docker
    Good alternative?
     
  2. Middleware is a full stack cloud observability platform to bring all metrics, logs, and traces in one unified timeline to debug issues faster.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Software as a Service (SaaS)
    Good alternative?
     
  3. Statance icon
     2 likes

    Server Monitoring and Down Alerts made easy! WIndows, Linux & macOS Monitor servers easily and receive alerts on CPU, RAM or downtime.

    118 Statance alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Software as a Service (SaaS)
    Good alternative?
     
  4.  2 likes

    phpSysInfo: a customizable PHP script that displays information about your system nicely

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Self-Hosted
    • PHP
    Good alternative?
     
  5. pgDash icon
     1 like

    pgDash is a modern, in-depth monitoring solution designed for PostgreSQL. pgDash shows you information about every aspect of your PostgreSQL database server, collected using the open-source tool pgmetrics, and includes Diagnostics & support for Teams.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Linux
    • Online
    • Self-Hosted
    • US flagUnited States
    Monitor extensive replication metrics, including lags at primary and standby servers, physical and logical replication slot information, and standby recovery progress.
    Good alternative?
     
  6.  2 likes

    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!".

    Cost / License

    • Free
    • Open Source

    Platforms

    • Windows
    Good alternative?
     
  7. PagespeedPlus.com is a tool for measuring page speed insights scores at scale. Large websites and agencies now have the perfect tool for running automated scans and receiving alerts when their score is low.

    Cost / License

    • Paid
    • Proprietary

    Platforms

    • Online
    Good alternative?
     
  8. When a server goes down, it costs not only money but also productivity loss and reputational damage. The majority of the servers go down because of a full disk. Logs are getting too big, or disk images cache grows without bounds.

    Cost / License

    • Free Personal
    • Proprietary

    Platforms

    • Online
    • Software as a Service (SaaS)
    Good alternative?
     
  9. SeaLion icon
     3 likes

    SeaLion is a FREE Linux server monitoring and debugging tool for easy troubleshooting across hundreds of servers. View raw output of critical events across your servers and debug your server issues. Latest version shipped with 5 default services.

    Cost / License

    • Freemium
    • Proprietary

    Alerts

    • Discontinued

    Platforms

    • Linux
    • Online
    Good alternative?
     
  10. OpsiMate icon
     1 like

    OpsiMate is an open source platform that provides comprehensive infrastructure monitoring, automation, and management tools. Transform complexity into clarity with our unified, intelligent platform.

    Cost / License

    Application type

    Platforms

    • Self-Hosted
    • Docker
    Good alternative?
     
  11. OpenObserve icon
     1 like

    A cloud-native observability platform built specifically for logs, metrics, traces, analytics, RUM (real user monitoring — performance, errors, session replay) designed to work at petabyte scale.

    Cost / License

    Platforms

    • Online
    • Self-Hosted
    • Software as a Service (SaaS)
    • Docker
    Good alternative?
     
  12. Fodaris icon
     1 like

    Fodaris is a self-hosted monitoring and observability platform built for homelabs and businesses. It monitors servers, Docker containers, network devices, websites, APIs, databases, and applications from a single dashboard.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Windows
    • Mac
    • Linux
    • Docker
    • Self-Hosted
    • GB flagUnited Kingdom
    Alert Rule templates
    Good alternative?
     
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