head to head · open source
worldmonitor vs effect
worldmonitor has 90,021 GitHub stars, 13,905 forks, 313 open issues and last shipped yesterday. effect has 17,464 stars, 892 forks, 253 open issues and last shipped yesterday. worldmonitor leads on adoption by 415% (90,021 vs 17,464 stars). worldmonitor is written in TypeScript under AGPL-3.0; effect is written in TypeScript under MIT. worldmonitor has attracted 15% as many forks as stars, effect 5%. worldmonitor was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | effect | |
|---|---|---|
| GitHub stars | ★ 90K | ★ 17K |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 14K | ⑂ 892 |
| 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 effect if
- You want the effect feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and effect 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 effect
Effect Effect is a library for building robust, maintainable, type safe, and production grade applications in TypeScript. It helps you handle the hard problems at scale: typed errors, dependency injection, structured concurrency, scheduling, tracing, and unified schema validation. Effect V4 is currently a release candidate. The main branch contains v4 development. Install V4 RC Requirements TypeScript 5.9 or newer. TypeScript 7 is recommended for the best performance and compatibility with Effect's TypeScript tooling. Node.js 18 or newer is the general minimum for running Effect on Node.js. Some integration…
read the full effect overview →
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Frequently asked questions
Is worldmonitor or effect more popular?
worldmonitor has 90,021 GitHub stars and effect has 17,464. worldmonitor has the larger community by that measure.
Are worldmonitor and effect free?
Both are open source. worldmonitor is licensed under AGPL-3.0 and effect under MIT. Neither carries a licence fee.
What is the difference between worldmonitor and effect?
worldmonitor is written in TypeScript and effect in TypeScript. 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 effect?
Choose worldmonitor if you want the larger community (90,021 stars) or its AGPL-3.0 licence terms. Choose effect if its feature set, stack or MIT licence fits better. Both are self-hostable.