Free Nagios AlternativesTop Network Monitors and other similar apps like Nagios

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

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Nagios alternatives are mainly Network Monitors but may also be Uptime Monitor Services or Error Loggers. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Nagios.

Nagios

Network Monitor
Freemium • Open Source

Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.

More about Nagios

Nagios alternatives page was last updated Jan 11, 2024

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.
113 Zabbix alternatives
License model
- Free • Open Source
Application types
- Network Monitor
- Uptime Monitor Service
Platforms
- Linux
- Self-Hosted
- FreeBSD
- OpenBSD
+3
Zabbix Features
1. Server Monitoring
2. Custom Dashboard
3. Hardware Monitoring
4. No registration required
5. Ad-free
6. Privacy focused
7. Portable
8. Azure integration
Show all NaN Zabbix features ▾
Zabbix VS Nagios
Is Zabbix a good alternative to Nagios?
Comments about Zabbix as an Alternative to Nagios

Guest
Innovative UI and complex functions.
Positive comment •May 26, 2018
-1
- 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

Netdata
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.
44 Netdata alternatives
License model
- Freemium • Proprietary
Application types
- Network Monitor
- Uptime Monitor Service
Platforms
- Mac
- Linux
- Online
- BSD
- Self-Hosted
- C (programming language)
- Python
- Bash
Top Netdata Features
1. No Coding Required
2. Real time collaboration
3. Lightweight
4. Dark Mode
5. Works Offline
6. No Tracking
7. Privacy focused
8. Ad-free
9. Extensible by Plugins/Extensions
10. Website Monitoring
11. Server Monitoring
12. Real-time Statistics
Show all NaN Netdata features ▾
Netdata VS Nagios
Is Netdata a good alternative to Nagios?
Comments about Netdata as an Alternative to Nagios

Guest
Super fast monitoring of the system, and also of the monitors the kernel of the system.
Positive comment •Mar 6, 2017
1
- 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

Spiceworks
Spiceworks is a software suite for IT professionals to manage networks, troubleshoot issues, and handle IT tasks. It offers free online tools for network connectivity management, remote computer access, user activity monitoring, contract tracking, and inventory scanning.
133 Spiceworks alternatives
License model
- Free • Proprietary
Application types
- Network Monitor
- Help Desk Platform
Platforms
- Windows
- Online
- Android
- Android Tablet
Spiceworks Features
1. Knowledge base
2. Hardware Monitoring
3. Helpdesk Ticketing
4. IT Asset Management
5. Product Reviews
6. Network Mapping
Show all NaN Spiceworks features ▾
Spiceworks VS Nagios
Is Spiceworks a good alternative to Nagios?
- Some users think Spiceworks is a great Nagios alternative, some don't.
- Spiceworks is the most popular Windows, Android & Android Tablet alternative to Nagios.
- Spiceworks is Free and ProprietaryNagios is Freemium and Open Source

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 awaited patches and features requested by the...
58 Icinga alternatives
License model
- Freemium • Open Source
Application type
- Network Monitor
Platforms
- Mac
- Linux
Icinga Features
Hardware Monitoring
Show all NaN Icinga features ▾
Icinga VS Nagios
Is Icinga a good alternative to Nagios?

Cockpit Project
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.
20 Cockpit Project alternatives
License model
- Free • Open Source
Application type
- Server Management Tool
Platforms
- Linux
- Flathub
Cockpit Project Features
1. Ad-free
2. No registration required
3. Server Monitoring
4. Lightweight
5. Extensible by Plugins/Extensions
6. Command line interface
7. Dark Mode
8. Configuration
9. Debugging
Show all NaN Cockpit Project features ▾
Cockpit Project VS Nagios
Is Cockpit Project a good alternative to Nagios?

HyperDX
An open source observability platform: Unify session replays, logs, traces, and errors – all without the Datadog price tag.
61 HyperDX alternatives
License model
- Freemium • Open Source
Platforms
- Software as a Service (SaaS)
- Self-Hosted
- Docker
HyperDX Features
Application Monitoring
Metrics
Show all NaN HyperDX features ▾
+1
HyperDX VS Nagios
Is HyperDX a good alternative to Nagios?
- HyperDX is the most popular SaaS alternative to Nagios.
- HyperDX is Freemium and Open SourceNagios is also Freemium and Open Source

Cabot
Cabot is a free, open-source, self-hosted infrastructure monitoring platform that provides some of the best features of PagerDuty, Server Density, Pingdom and Nagios without their cost and complexity.
118 Cabot alternatives
License model
- Free • Open Source
Application types
- Network Monitor
- Uptime Monitor Service
Platforms
- Self-Hosted
Cabot Features
Website Monitoring
Show all NaN Cabot features ▾
Discontinued
The last update is from 2021, and it's mentioned on the GitHub repository that the project is not maintained anymore.

Cabot VS Nagios
Is Cabot a good alternative to Nagios?

DeepFlow
Unify your cloud-native monitoring with zero-code eBPF, advanced profiling, and 10x storage efficiency.
53 DeepFlow alternatives
License model
- Free • Open Source
Platforms
- Self-Hosted
- Software as a Service (SaaS)
DeepFlow Features
No Coding Required
Show all NaN DeepFlow features ▾
+3
DeepFlow VS Nagios
Is DeepFlow a good alternative to Nagios?

LibreNMS
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...
30 LibreNMS alternatives
License model
- Free • Open Source
Application type
- Network Monitor
Platforms
- Linux
- BSD
- MySQL Community Edition
- Apache HTTP Server
- JavaScript
- PHP
LibreNMS Features
Network Discovery
SNMP Trap Support
IT Asset Management
Show all NaN LibreNMS features ▾
LibreNMS VS Nagios
Is LibreNMS a good alternative to Nagios?
Comments about LibreNMS as an Alternative to Nagios

Guest
Best open source tool that I've tried! Easy to install, manage and low support.
Positive comment •Apr 1, 2019
0
Teke2
So easy to setup, very powerful, and can use the Nagios plugins.
Positive comment •Mar 9, 2018
0
- Almost everyone thinks LibreNMS is a great Nagios alternative.
- LibreNMS is Free and Open SourceNagios is Freemium and Open Source

Monitorix
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.
22 Monitorix alternatives
License model
- Free • Open Source
Application type
- Network Monitor
Platforms
- Linux
+2
Monitorix Features
1. No Tracking
2. Ad-free
3. Dark Mode
4. Lightweight
5. No registration required
6. Hardware Monitoring
7. Application Monitoring
Show all NaN Monitorix features ▾
Monitorix VS Nagios
Is Monitorix a good alternative to Nagios?