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Zabbix vs Cacti: catalog facts
Zabbix	Cacti
Free Free and open source under the AGPL. Support and services are paid.	Free Free and open source under the GPL.
Linux, Web, Self-hosted	Linux, Web, Self-hosted
Scales to tens of thousands of monitored devices with proxies Large template library covering common hardware and services	RRDtool storage keeps years of graphs in a fixed amount of disk Mature template and plugin ecosystem for network devices
Configuration is extensive; the learning curve is real Interface density makes simple setups feel heavy	Interface and workflow feel dated next to newer monitoring stacks Alerting requires plugins rather than being built in
Self-hosted	Self-hosted
Open source	Open source
License: AGPL-3.0	License: GPL-2.0
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.