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Nagios Core
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open-source IT infrastructure monitoring & alerting solution
Table of Contents
Nagios Core - 2026 Pricing, Features, Reviews & Alternatives
All user reviews are verified by in-house moderators and provider data by our software research team. Learn more
Nagios Core overview
What is Nagios Core?
Nagios Core is an open-source IT infrastructure monitoring and alerting solution designed to help businesses monitor mission-critical infrastructure components such as network protocols, operating systems, applications, systems metrics, and network infrastructure via a unified platform. It enables IT professionals to receive alerts when critical components fail and recover via email, custom script, or text messages.
It provides a host of features such as FTP monitoring, infrastructure management, data visualization, analytics, mail server monitoring, user management, and more. Nagios Core offers an API, which lets businesses integrate the system with several third-party platforms, enabling businesses to push and pull data across systems.
Starting price
Alternatives
with better value for money
Nagios Core’s user interface
Nagios Core reviews
Overall rating
4.1
/5
34
Positive reviews
76
%
- Value for money
- Ease of use
- Features
- Customer support
- Likelihood to recommend7.93/10
5
4
3
2
1
13
13
7
1
0
Srikanth D.
Technical Lead
Samuel C.
Engineer
Verified reviewer
Anonymity request
Arthur D.
Founder
Kyler M.
Systems Analyst
Thomas R.
IT admin
Who uses Nagios Core?
Based on 34 verified user reviews.
Company size
Small Businesses
Enterprises
Midsize Businesses
Top industries
Use cases
Nagios Core's key features
Most critical features, based on insights from Nagios Core users:
All Nagios Core features
Features rating:
Nagios Core alternatives
Nagios Core
Starting from
Free
Uptrends
Starting from
100
Per month
Lucky Orange
Starting from
39
Per month
Uptime.com
Starting from
7
Per month
Nagios Core pricing
Value for money rating:
Starting from
Free
User opinions about Nagios Core price and value
Value for money rating:
To see what individual users think of Nagios Core's price and value, check out the review snippets below.
Srikanth D.
Technical Lead
Samuel C.
Engineer
Nagios Core integrations (23)
Nagios Core support options
Typical customers
Platforms supported
Support options
Training options
Nagios Core FAQs
Nagios Core has the following pricing plans:
Starting from: $0.00
Pricing model: One Time License, Free, Open Source
Free Trial: Available | (No Credit Card required)
These products have better value for money
Q. Who are the typical users of Nagios Core?
Nagios Core has the following typical customers:
Freelancers, Large Enterprises, Mid Size Business, Non Profit, Public Administrations, Small Business
Q. What languages does Nagios Core support?
Nagios Core supports the following languages:
English
Q. Does Nagios Core offer an API?
No, Nagios Core does not have an API available.
Q. What level of support does Nagios Core offer?
Nagios Core offers the following support options:
Chat, FAQs/Forum, Knowledge Base