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PRTG Network Monitor vs SolarWinds Network Performance Monitor: catalog facts
PRTG Network Monitor	SolarWinds Network Performance Monitor
Freemium Free for up to one hundred sensors. Larger deployments require a paid licence.	Paid Commercial license sold directly by the vendor rather than offered as a free product.
Windows, Web, Self-hosted	Self-hosted
One hundred sensors free forever, which covers a small network Autodiscovery, maps and alerting configured through one interface	NetPath and intelligent maps give deep visibility into network paths Long-established, widely deployed product in enterprise IT
Licensing is per sensor and gets expensive quickly Windows server only, closed source	Commercial licensing makes it a significant cost for smaller organizations Self-hosted deployment requires dedicated infrastructure to run
Self-hosted	Self-hosted, Downloadable app
Closed 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.