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Pandora FMS vs Nagios Core: catalog facts
Pandora FMS	Nagios Core
Freemium An open-source edition is available; commercial on-premise and SaaS licences are sold…	Free Free and open source. Hosting, hardware and any external services are separate.
Web, Self-hosted	Self-hosted
Covers servers, networks, applications, logs and user experience Dashboards, reports and alerts built in	Runs plugin-based checks Tracks availability and sends notifications
Aimed at organisations, so setup is more involved than a desktop monitor Many features and add-ons belong to the commercial editions	Configuration and many checks need manual setup or additional plugins.
Self-hosted, Hosted service	Self-hosted
Open source	Open source
License not stated	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 24, 2026	Official website Full listing and sources Checked September 22, 2026

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