head to head · open source
worldmonitor vs alertmanager
worldmonitor has 90,021 GitHub stars, 13,905 forks, 313 open issues and last shipped yesterday. alertmanager has 8,677 stars, 2,495 forks, 419 open issues and last shipped 2 days ago. worldmonitor leads on adoption by 937% (90,021 vs 8,677 stars). worldmonitor is written in TypeScript under AGPL-3.0; alertmanager is written in Go under Apache-2.0. worldmonitor has attracted 15% as many forks as stars, alertmanager 29%. 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.
← all 20902 open source comparisons
Side by side
| worldmonitor | alertmanager | |
|---|---|---|
| GitHub stars | ★ 90K | ★ 8.7K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | TypeScript | Go |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 14K | ⑂ 2.5K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick worldmonitor if
- You weight community size — 90K 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 alertmanager if
- You want the alertmanager 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 alertmanager fits your workflow better
About worldmonitor
World Monitor 简体中文 日本語 Real time global intelligence dashboard — AI powered news aggregation, geopolitical monitoring, and infrastructure tracking in a unified situational awareness interface. Documentation · Releases · Contributing What It Does Curated news feeds across global and regional categories, AI synthesized into briefs Dual map engine — 3D globe (globe.gl) and WebGL flat map (deck.gl) with a shared map layer catalog Panel inventory — concrete panel implementations across specialized variants Cross stream correlation — military, economic, disaster, and escalation signal convergence Country Instability…
read the full worldmonitor overview →
About alertmanager
Alertmanager [ ][circleci] [ ][quay] [ ][hub] The Alertmanager handles alerts sent by client applications such as the Prometheus server. It takes care of deduplicating, grouping, and routing them to the correct receiver integrations such as email, PagerDuty, OpsGenie, or many other mechanisms thanks to the webhook receiver. It also takes care of silencing and inhibition of alerts. Documentation Install There are various ways of installing Alertmanager. Precompiled binaries Precompiled binaries for released versions are available in the download section on prometheus.io. Using the latest production release binary…
read the full alertmanager overview →
More in Infrastructure & Operations
Related comparisons
More Monitoring & Observability projects
Compare either of these against the rest of the Monitoring & Observability field.
Frequently asked questions
Is worldmonitor or alertmanager more popular?
worldmonitor has 90,021 GitHub stars and alertmanager has 8,677. worldmonitor has the larger community by that measure.
Are worldmonitor and alertmanager free?
Both are open source. worldmonitor is licensed under AGPL-3.0 and alertmanager under Apache-2.0. Neither carries a licence fee.
What is the difference between worldmonitor and alertmanager?
worldmonitor is written in TypeScript and alertmanager 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 alertmanager?
Choose worldmonitor if you want the larger community (90,021 stars) or its AGPL-3.0 licence terms. Choose alertmanager if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.