Compare software

NetAlertX vs WatchYourLAN: catalog facts
NetAlertX	WatchYourLAN
Free Free to run on your own hardware.	Free Free to run yourself, with the source published on GitHub.
Self-hosted	Linux, Self-hosted
Continuous discovery of devices on the network Alerts when devices appear or disappear	Notifications when an unknown device joins the network Online and offline history for each host
Needs a server or always-on machine to run Setup takes more effort than a one-off scan	Covers the local network only Needs a machine that stays on to keep watching
Self-hosted	Self-hosted
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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