head to head · open source
worldmonitor vs pyrra
worldmonitor has 86,752 GitHub stars, 13,161 forks, 313 open issues and last shipped yesterday. pyrra has 1,556 stars, 150 forks, 83 open issues and last shipped 28 days ago. worldmonitor leads on adoption by 5,475% (86,752 vs 1,556 stars). worldmonitor is written in TypeScript under AGPL-3.0; pyrra is written in Go under Apache-2.0. worldmonitor has attracted 15% as many forks as stars, pyrra 10%. 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 | pyrra | |
|---|---|---|
| GitHub stars | ★ 87K | ★ 1.6K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | TypeScript | Go |
| Last push | 2026-09-18 | 2026-08-22 |
| Forks | ⑂ 13K | ⑂ 150 |
| 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 pyrra if
- You want the pyrra feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and pyrra 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 pyrra
Pyrra is an open source tool that makes Service Level Objectives on Prometheus manageable and accessible, turning a single YAML definition into Prometheus recording rules, multi burn rate alerts, and SLO dashboards for platform and SRE teams running Kubernetes, Docker, or filesystem based Prometheus setups.
read the full pyrra overview →
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Frequently asked questions
Is worldmonitor or pyrra more popular?
worldmonitor has 86,752 GitHub stars and pyrra has 1,556. worldmonitor has the larger community by that measure.
Are worldmonitor and pyrra free?
Both are open source. worldmonitor is licensed under AGPL-3.0 and pyrra under Apache-2.0. Neither carries a licence fee.
What is the difference between worldmonitor and pyrra?
worldmonitor is written in TypeScript and pyrra in Go. 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 pyrra?
Choose worldmonitor if you want the larger community (86,752 stars) or its AGPL-3.0 licence terms. Choose pyrra if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.