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