Compare software

ManageEngine OpManagerOpenNMS
Freemium

Free edition for a limited number of devices, with paid tiers for larger networks.

 Freemium

Open source core (Horizon) is free, with a paid enterprise edition (Meridian).

Self-hosted Self-hosted
  • Covers fault, performance and configuration management in one console
  • Free tier makes it accessible for monitoring smaller networks
  • Carrier-grade design proven at large enterprise scale
  • Event correlation and Grafana integration for deeper visualization
  • Larger networks require paid tiers to unlock full device and feature limits
  • Proprietary software, so you cannot inspect or modify the underlying code
  • Complexity suited to large networks may be overkill for small setups
  • Paid tiers are needed for enterprise support and advanced features
Self-hosted, Downloadable app Self-hosted, Downloadable app
Closed source Open source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 22, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.