head to head · open source
worldmonitor vs Checkmk
worldmonitor has 86,684 GitHub stars, 13,147 forks, 313 open issues and last shipped yesterday. Checkmk has 2,368 stars, 555 forks, 55 open issues and last shipped yesterday. worldmonitor leads on adoption by 3,561% (86,684 vs 2,368 stars). worldmonitor is written in TypeScript under AGPL-3.0; Checkmk is written in Python under GPL-2.0. worldmonitor has attracted 15% as many forks as stars, Checkmk 23%. worldmonitor was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (monitoring), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| worldmonitor | Checkmk | |
|---|---|---|
| GitHub stars | ★ 87K | ★ 2.4K |
| License | AGPL-3.0 | GPL-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 13K | ⑂ 555 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick worldmonitor if
- You weight community size — 87K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Checkmk if
- You want the Checkmk feature set and don't need the biggest community
- You prefer the GPL-2.0 license terms
- Your stack matches Python
- You evaluated both and Checkmk fits your workflow better
About worldmonitor
World Monitor is an open source, real time global intelligence dashboard in TypeScript that aggregates news with AI, monitors geopolitics and infrastructure, and unifies all of it into a single situational awareness interface for analysts, journalists, researchers, and operations teams who need cross domain awareness they can self host.
read the full worldmonitor overview →
About Checkmk
Checkmk is a comprehensive IT monitoring system for infrastructure and application monitoring across physical, virtual, containerized, and cloud environments. It is an open source Python project released under the GNU GPL v2, and it lives in the infrastructure monitoring and observability ecosystem. The project provides a central monitoring engine, a web based interface, and support for many official and community maintained plugins.
read the full Checkmk overview →
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Frequently asked questions
Is worldmonitor or Checkmk more popular?
worldmonitor has 86,684 GitHub stars and Checkmk has 2,368. worldmonitor has the larger community by that measure.
Are worldmonitor and Checkmk free?
Both are open source. worldmonitor is licensed under AGPL-3.0 and Checkmk under GPL-2.0. Neither carries a licence fee.
What is the difference between worldmonitor and Checkmk?
worldmonitor is written in TypeScript and Checkmk in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, worldmonitor or Checkmk?
Choose worldmonitor if you want the larger community (86,684 stars) or its AGPL-3.0 licence terms. Choose Checkmk if its feature set, stack or GPL-2.0 licence fits better. Both are self-hostable.