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Instead of ManageEngine OpManager

ManageEngine OpManager alternatives

ManageEngine OpManager brings network and server metrics into a unified console. It tracks CPU, memory, disk use, latency, packet loss and response time, and analyzes traffic through NetFlow, sFlow, J-Flow and IPFIX. Severity-based alerts can trigger automated troubleshooting with scripts or workflow actions. It also offers topology maps, integrations such as ServiceNow, Jira and Grafana, and support for more than 11,000 device types from over 450 vendors. The perpetual free edition covers three devices; annual paid plans start at $95 for 10 devices, and the 30-day trial has no device cap.

  1. 1

    Netdata

    Free plan Open source AndroidAPIiPhone+5

    Real-time infrastructure observability and broad data-format support — Netdata adds per-second metrics, ML-based anomaly detection, logs and more than 800 collectors for infrastructure observability.

    Free plan · paid from $4.50/mo (annual) · 14-day trial Visit site
  2. 2

    Paessler PRTG Network Monitor

    Free plan AndroidAPIiPhone+5

    On-premises monitoring with sensors and scheduled reports — PRTG runs on Windows servers and includes more than 250 preconfigured sensors, scheduled reports and adaptive AI-driven anomaly detection.

    Free plan · paid from $200/mo (annual) · 30-day trial Visit site
  3. 3

    Centreon

    by Centreon
    Free plan Open source APILinuxSelf-hosted+2

    Complex infrastructure spanning cloud to edge — Centreon combines monitoring for servers, networks, cloud environments and applications with more than 700 connectors.

    Free plan · paid from €2.27 · 7-day trial Visit site
  4. 4

    Checkmk

    Free plan Open source AndroidAPIiPhone+5

    Hybrid, cloud and data-center monitoring at scale — Checkmk adds more than 2,000 smart checks, automatic discovery, cloud-component detection and horizontal scaling through distributed monitoring.

    Free plan · paid from €190/mo (annual) · 30-day trial Visit site
  5. 5

    Glances

    Free plan Open source AndroidAPILinux+4

    Free, cross-platform system statistics and process monitoring — Glances is a free system monitor with process, container and sensor views plus exports to files, databases, brokers or REST.

    Free plan Visit site
  6. 6

    NetXMS

    Free plan AndroidAPILinux+4

    Distributed networks and automated topology mapping — NetXMS builds layer 2 and IP topology maps and supports proxy agents and zones for distributed or unstable connections.

    7.2 Free plan Visit site
  7. 7

    GKrellM

    Free plan LinuxMacWindows

    Free desktop system monitors with themes and plugins — GKrellM provides a themed, single-process stack of system monitors with configurable sensor and battery alarms and community plugins.

    Free plan Visit site
  8. 8

    Scanopy

    Free plan Open source APILinuxMac+3
    8.7 Free plan · paid from $11.99/mo (annual) · 14-day trial Visit site
  9. 9

    Domotz

    Free plan AndroidAPIiPhone+4
    7.6 Free plan · paid from $1.50/mo · 14-day trial Visit site
  10. 10

    LibreNMS

    Free plan AndroidAPIiPhone+3
    7.5 Free plan Visit site
  11. 11

    ManageEngine OpUtils

    Free plan AndroidAPIiPhone+4
    7.4 Free plan · paid from $138 · 30-day trial Visit site
  12. 12

    NetAI

    Free plan APILinuxSelf-hosted+2
    7.4 Free plan · paid from $5.99/mo · 14-day trial Visit site
  13. 13

    Netdisco

    Free plan APILinuxSelf-hosted+1
    7.3 Free plan Visit site
  14. 14

    Site24x7 Network Monitoring

    Free plan AndroidAPIiPhone+4
    7.0 From $42/mo (annual) · 30-day trial Visit site
  15. 15

    Zabbix

    Free plan APILinuxMac+3
    6.9 Free plan · paid from $50/mo · 5-day trial Visit site
  16. 16

    Device42

    by Device42
    Free trial APILinuxMac+3
    6.6 Pricing on request Visit site
  17. 17

    Faddom

    Free trial LinuxSelf-hostedWeb+1
    6.5 Pricing on request · 14-day trial Visit site
  18. 18

    Forward Enterprise

    Free trial APISelf-hostedWeb
    6.3 Pricing on request Visit site
  19. 19

    Google Cloud Network Intelligence Center

    Free plan Web
    6.3 Free plan · paid from $0.15/mo Visit site
  20. 20

    Nebula

    Free plan LinuxMacWeb+1
    6.3 Free plan Visit site
  21. 21

    Net2Plan

    Free plan LinuxMacWindows
    6.3 Free plan Visit site
  22. 22

    NetCrunch

    Free trial APISelf-hostedWeb+1
    6.2 From $1,900/yr · 30-day trial Visit site
  23. 23

    NetTopo 3D AI

    Free plan LinuxMacWeb+1
    6.2 Free plan Visit site
  24. 24

    Cisco Catalyst Center

    Paid APILinuxMac+3
    6.1 Pricing on request Visit site
  25. 25

    Kentik Network Monitoring System

    Free trial APIWeb
    6.1 From $2,000/mo (annual) · 30-day trial Visit site
  26. 26

    Netscope

    Free plan LinuxMacWeb+1
    6.1 Free plan Visit site
  27. 27

    ExtremeCloud IQ

    Paid APISelf-hostedWeb
    5.9 Pricing on request · 90-day trial Visit site
  28. 28

    NetAlly Link-Live

    Free plan Web
    5.8 Free plan Visit site
  29. 29

    WhatsUp Gold

    Free trial APISelf-hostedWeb+1
    5.8 Free plan · paid from $1,229 · 30-day trial Visit site
  30. 30

    Schematix

    Free trial APIWeb
    5.7 From $90/user/mo · 30-day trial Visit site

Readers may prefer a different fit for broader infrastructure coverage, specific discovery methods, or a free system monitor. OpManager is self-hosted, with Windows, Linux, web, Android, iOS and API support. Compare what each alternative monitors, how it handles alerts, integrations and distributed environments, and where it can be deployed. Also consider whether its free offering or starting price suits the number and type of systems you need to monitor.

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