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Checkmk vs LibreNMS: catalog facts
Checkmk	LibreNMS
Freemium Free open-source Raw edition, with paid Enterprise and Cloud editions.	Free Free and open source. Hosting, hardware and any external services are separate.
Self-hosted	Self-hosted
Auto-discovery reduces manual setup for new hosts and services Supports both agent-based and agentless SNMP monitoring	Collects device information and performance data Provides alerting and historical graphs
Advanced features and scaling are gated behind paid commercial editions Self-hosted setup and tuning takes more effort than a hosted SaaS monitor	Device visibility depends on supported protocols and credentials.
Self-hosted, Downloadable app	Self-hosted
Open source	Open source
License not stated	License: GPL-3.0
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
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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