Top 12 Open-Source Alternatives to nfsen-ng

The top open-source alternatives to nfsen-ng are Zabbix, LibreNMS, and FastNetMon. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Zabbix Landing Page
1

Zabbix

Track, record, alert and visualize performance and availability of IT resources
Pricing:
- Open Source
- Free
#Monitoring Tools #Performance Monitoring #DevOps Tools 5 social mentions
LibreNMS Landing Page
2

LibreNMS

A fully featured network monitoring system that provides a wealth of features and device support.
Pricing:
- Open Source
#Monitoring Tools #Network Monitoring #Performance Monitoring
FastNetMon Landing Page
3

FastNetMon

FastNetMon is a very fast DDoS analyzer with sflow/netflow/mirror support.
Pricing:
- Open Source
- Freemium
- Free Trial
- $115.0 / Monthly (for 10G of bandwidth)
#Monitoring Tools #Log Management #Error Tracking 3 social mentions
Grafana Landing Page
4

Grafana

Data visualization & Monitoring with support for Graphite, InfluxDB, Prometheus, Elasticsearch and many more databases
Pricing:
- Open Source
#Data Dashboard #Data Visualization #Data Analytics 197 social mentions
Centreon Landing Page
5

Centreon

Centreon is a network, system, applicative supervision and monitoring tool.
Pricing:
- Open Source
#Monitoring Tools #Performance Monitoring #Log Management
Prometheus Landing Page
6

Prometheus

An open-source systems monitoring and alerting toolkit.
Pricing:
- Open Source
#Monitoring Tools #Performance Monitoring #Log Management 225 social mentions
Wireshark Landing Page
7

Wireshark

Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
Pricing:
- Open Source
#Monitoring Tools #Log Management #Performance Monitoring 11 social mentions
Datadog Landing Page
8

Datadog

See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Pricing:
- Open Source
- Freemium
- Free Trial
- $15.0 / Monthly (per host)
#Monitoring Tools #Log Management #Error Tracking 5 social mentions
NEXOG Landing Page
9

NEXOG

Network Management, Monitoring and Orchestration. Real time monitoring for business-critical applications
Pricing:
- Open Source
- Paid
- Free Trial
#Monitoring Tools #Log Management #Error Tracking
Icinga Landing Page
10

Icinga

Icinga is a fork of Nagios and is backward compatible.
Pricing:
- Open Source
#Monitoring Tools #Log Management #Performance Monitoring 8 social mentions
pfSense Landing Page
11

pfSense

pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Pricing:
- Open Source
#Perimeter Security And Firewalls #Cyber Security #Network Security 10 social mentions
Nagios Landing Page
12

Nagios

Complete monitoring and alerting for servers, switches, applications, and services
Pricing:
- Open Source
#Monitoring Tools #Performance Monitoring #Log Management