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Open source · GPLv2

Open-source network and infrastructure monitoring

L2/L3 topology discovery, agents for servers and applications, event processing and NXSL scripting. Self-hosted, GPLv2, no node limit on Linux.

Download 6.2.6Read the docs
Version 6.2.6 · released 2026-10-06 · Release notes
NetXMS L2 topology map: a core switch linked to servers and management interfaces, with per-link traffic rates and node status colours
Network monitoring

Network monitoring that goes deeper

Most tools ping your devices. NetXMS understands how they are connected.

Network map in the style of the NetXMS console: a core router, two switches and five hosts, with links labelled by the protocol that found them (LLDP, CDP, STP, FDB)

Automatic L2/L3 topology discovery

ARP, routing tables, STP, LLDP, CDP.

Grid of supported vendors: Cisco, Juniper, Huawei, MikroTik, HPE, Extreme, Arista, Fortinet, Ubiquiti, Aruba, Dell and 30 more

45+ device drivers

Cisco, Juniper, Huawei, MikroTik, HPE, Extreme and more.

Network map with the traced path from web-01 to db-02 highlighted: two L2 hops through an access switch to the core router, then an L3 hop; nodes off the path are dimmed

Network path trace

L2 and L3, hop by hop.

Diagram: the NetXMS server polls two zones, Site A and Site B, through one proxy each; both zones use the same 10.0.0.0/24 subnet

Zones and distributed monitoring

Multi-site, autonomous zones.

All network monitoring features
AI assistant

Ask, configure and act in plain language

Optional, and it can run on a self-hosted model so nothing leaves your network.

"Build a dashboard for web-01 with CPU and memory line charts and an alarm viewer"
Dashboard generated by the assistant: CPU and memory line charts and an alarm viewer for web-01

Dashboards from a prompt

Built element by element, each one validated.

Ask about anything in the system

"Why is the core switch down?" "Explain this alarm."

Configure by describing

Metrics, thresholds, event rules, maintenance windows.

Act, with approval

Maintenance mode, backups, notifications.

See the AI assistant

And the rest of the platform

Data collection

Agents and subagents, SNMP, 14 source types, servers and databases.

Read more

Automation

Events, alarms, notifications, NXSL scripting, scheduled tasks.

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Management

Remote actions, remote access, asset management, maintenance.

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Integrations

Grafana, REST API, Java API, MQTT, reporting, SIEM export.

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Latest release: 6.2.6

2026-10-06
  • Network maps: box selection; dashboards: pie chart values, configurable port view boxes, macros in web page URLs
  • Web API: post events, manage mapping tables, persistent storage and SNMP traps
  • Agent security: auth/encryption requirements enforced for all commands (#3676), AI file tools confined (#3675)
  • NXSL in scheduled tasks and AI assistant tools runs with user security context (#3665)
  • Regressions fixed: SNMP noSuchObject treated as unsupported again (#3690), custom map auto-link (#3681)
  • Linux agent reads user sessions from systemd-logind, fixing hosts without utmp such as Debian 13 (#3674)
Full release notes

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