Checkmk alternatives: 5 apps ranked by verified data
Common reasons people leave Checkmk: best features are in paid editions, and rule system takes time to master. We ranked 5 alternatives by how directly each one replaces Checkmk, then by reviews, real visits and how recently each app's facts were checked against its own website. Zabbix currently ranks first.
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Show all 5 alternativesThe best Checkmk alternative for…
The highest-ranked app in this list for each need.
Best Checkmk alternative for most people
ZabbixFully free with no paid editions, at the cost of more setup.
Best Checkmk alternative for a free option
IcingaOpen-source monitoring with a powerful config language and API.
Best Checkmk alternative for self-hosting
PrometheusBetter for cloud-native, container-heavy environments.
Best Checkmk alternative for Windows
PrometheusBetter for cloud-native, container-heavy environments.
Best Checkmk alternative for Linux
ZabbixFully free with no paid editions, at the cost of more setup.
Best Checkmk alternative for iPhone and Android
Site24x7Hosted alternative with no monitoring server to maintain.
Best Checkmk alternative for working in the browser
ZabbixFully free with no paid editions, at the cost of more setup.
Checkmk alternatives: common questions
What is the best alternative to Checkmk?
Zabbix ranks first right now. Fully free with no paid editions, at the cost of more setup. Icinga and Nagios follow it in our ranking.
Is there a free alternative to Checkmk?
Yes. Zabbix (open source), Icinga (open source), Nagios (open source) and Prometheus (open source) have a free option. Check each app's verified facts for current plan limits.
Is there an open-source alternative to Checkmk?
Yes: Zabbix, Icinga, Nagios and Prometheus. Zabbix, Icinga and Nagios can also be self-hosted.
Which Checkmk alternatives work on Linux?
Zabbix, Icinga, Nagios and Prometheus run on Linux.
Why do people switch from Checkmk?
The complaints we hear most: best features are in paid editions; rule system takes time to master; server runs only on Linux.
How is this list ranked?
Every app is scored with the same published formula: how directly it replaces Checkmk, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.