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Nagios Core
5
13
4
13
3
7
2
1
1
0
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Open-source IT infrastructure monitoring & alerting solution
Last updated: January 2026
Nagios Core Alternatives & Competitors (2026)
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Functionality
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Functionality
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5/5
Alerts/Escalation
5/5
API
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Functionality
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Alerts/Notifications
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4.3/5
0.4
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Functionality
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5/5
For Websites
4.8/5
Activity Dashboard
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FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.2
Value for money
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0.4
Functionality
Alerts/Notifications
4.8/5
Email Alerts
4.7/5
For Websites
4.7/5
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FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.2
Value for money
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0.5
Functionality
Activity Dashboard
4.9/5
Audit Management
4.7/5
Dashboard
4.6/5
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FTP Monitoring
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Alerts/Notifications
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Mail Server Monitoring
4.3/5
0.1
Value for money
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0.5
Functionality
Autoresponders
5/5
Access Controls/Permissions
4.8/5
Activity Tracking
4.7/5
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FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.3
Value for money
No pricing info
Starting price
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0.3
Functionality
For Websites
5/5
Multiple User Accounts
5/5
Activity Dashboard
4.7/5
Top Features
FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
Widest application monitoring support for enterprises & SMBs
0.2
Value for money
Starting price
No pricing info
0.6
Functionality
Alerts/Escalation
4.8/5
Alerts/Notifications
4.8/5
Application-Level Analysis
4.7/5
Top Features
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4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.3
Value for money
Starting price
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0.5
Functionality
API
5/5
Audit Trail
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Alerts/Notifications
4.7/5
Top Features
FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
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0.2
Value for money
No pricing info
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Functionality
Asset Discovery
5/5
KPI Monitoring
5/5
Event Logs
4.6/5
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FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.4
Value for money
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Functionality
Activity Dashboard
5/5
Alerts/Notifications
4.7/5
Alerts/Escalation
4.5/5
Top Features
FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.1
Value for money
Starting price
No pricing info
0.5
Functionality
Activity Tracking
4.7/5
Alerts/Notifications
4.6/5
Activity Dashboard
N/A
Top Features
FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.4
Value for money
Starting price
No pricing info
0.9
Functionality
Activity Dashboard
5/5
Alerts/Notifications
5/5
Email Alerts
5/5
Top Features
FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.2
Value for money
Starting price
No pricing info
0.4
Functionality
Activity Dashboard
5/5
Alerts/Escalation
5/5
Application-Level Analysis
4.9/5
Top Features
FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.5
Value for money
Starting price
No pricing info
0.4
Functionality
Access Controls/Permissions
5/5
Alerts/Escalation
4.8/5
Alerts/Notifications
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Top Features
FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.1
Value for money
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Functionality
Alerts/Notifications
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Activity Dashboard
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Availability Testing
4/5
Top Features
FTP Monitoring
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Alerts/Notifications
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Mail Server Monitoring
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0.2
Value for money
Starting price
No pricing info
0.2
Functionality
Customizable Dashboard
4.7/5
Activity Tracking
4.5/5
Customizable Branding
4/5
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FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5
0.5
Value for money
No pricing info
Starting price
No pricing info
0.5
Functionality
Email Alerts
5/5
Alerts/Notifications
4.8/5
Activity Dashboard
N/A
Top Features
FTP Monitoring
4.8/5
Alerts/Notifications
4.6/5
Mail Server Monitoring
4.3/5