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NetXMS vs PRTG Network Monitor: catalog facts
NetXMS	PRTG Network Monitor
Freemium The open-source edition is free; enterprise capabilities and services are available…	Freemium Free for up to one hundred sensors. Larger deployments require a paid licence.
Self-hosted	Windows, Web, Self-hosted
Collects device and agent data Provides monitoring and management interfaces	One hundred sensors free forever, which covers a small network Autodiscovery, maps and alerting configured through one interface
Enterprise services and editions have separate terms.	Licensing is per sensor and gets expensive quickly Windows server only, closed source
Self-hosted	Self-hosted
Open source	Closed 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
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.