Category: Network & Monitoring
8 European alternatives to Nagios — GDPR-compliant & EU-hosted.
Open-source IT monitoring system for network and server monitoring
Facts
- Headquarters
- US (US)
- Category
- Network & Monitoring
- Type
- Product
- GDPR-compliant
- Yes
- Open-source
- Yes
- Data hosting
- US
Top EU-based & GDPR-compliant alternatives to Nagios
- Checkmk↗
Checkmk is an open-source IT infrastructure monitoring platform developed by Checkmk GmbH (Munich, Germany). In February 2025, US growth-equity firm PSG Equity acquired a majority controlling stake, making PSG (US) the ultimate parent. The software itself remains open source, but the company is no longer EU-controlled.
DE · open-source
Frequently asked questions
What is the best European alternative to Nagios?
It depends on your use case. Strong EU alternatives to Nagios include Centreon, Checkmk and Icinga. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.
Are there open-source alternatives to Nagios?
Yes. Open-source EU alternatives to Nagios include Centreon, Checkmk, Icinga, Zabbix, ntopng and openITCOCKPIT. These keep your data fully under your own control and let you self-host if you want to.
Is Nagios GDPR-compliant and where is the data hosted?
Nagios is headquartered in US and hosts data in US. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. For full EU data residency the EU alternatives on this page usually offer more certainty.