Alternatives to OpenNMS

New Relic

Monitoring & Observability

Both OpenNMS and New Relic provide observability platforms for monitoring infrastructure and applications. However, OpenNMS is specifically focused on network monitoring with deep network-layer visibility, while New Relic is a broader full-stack observability platform. OpenNMS excels in network-specific monitoring (NetFlow, SNMP, network topology), whereas New Relic provides more comprehensive application performance monitoring and business observability. They partially overlap in infrastructure monitoring but serve different primary use cases.

groundcover

Monitoring & Observability

Both provide infrastructure monitoring and observability. Groundcover focuses on Kubernetes and cloud-native environments with eBPF-based monitoring, while OpenNMS is broader network monitoring with support for traditional and distributed networks. Groundcover emphasizes cost-effective host-based pricing, whereas OpenNMS uses subscription tiers based on cores and minions. They overlap in infrastructure visibility but serve different deployment models.

Honeycomb

Monitoring & Observability

Both platforms provide observability capabilities for distributed systems. Honeycomb focuses on high-cardinality telemetry analysis with distributed tracing and log analytics, while OpenNMS specializes in network monitoring with NetFlow, SNMP, and network topology. Honeycomb is application-centric observability, whereas OpenNMS is network-centric. They partially overlap in infrastructure observability but target different aspects of system monitoring.

Cacti

Network Monitoring

Open source network monitoring and graphing tool using RRDTool for data storage and graphing.

LibreNMS

Network Monitoring

LibreNMS is a free, open-source network monitoring system that provides auto-discovery, alerting, and comprehensive SNMP-based monitoring for IT infrastructure.

NetXMS

Infrastructure Monitoring

Enterprise-grade open-source network and infrastructure monitoring with auto-discovery, topology mapping, and event correlation.

Accedian

Network Performance Monitoring

Network performance analytics for telecom and enterprise with end-to-end visibility and quality monitoring.

Observium

Network Monitoring

Observium is a network monitoring platform that provides automatic device discovery and comprehensive SNMP-based monitoring for network infrastructure.

LiveAction

Network Monitoring

Network intelligence platform providing ThreatEye NDR, network performance, and SD-WAN analytics for enterprise operators.

PRTG

Network Monitoring

Network monitoring solution by Paessler providing comprehensive monitoring of IT infrastructure.