head to head · open source
worldmonitor vs sitespeed.io
worldmonitor has 86,752 GitHub stars, 13,161 forks, 313 open issues and last shipped today. sitespeed.io has 5,028 stars, 625 forks, 159 open issues and last shipped 2 days ago. worldmonitor leads on adoption by 1,625% (86,752 vs 5,028 stars). worldmonitor is written in TypeScript under AGPL-3.0; sitespeed.io is written in JavaScript under MIT. worldmonitor has attracted 15% as many forks as stars, sitespeed.io 12%. 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 | sitespeed.io | |
|---|---|---|
| GitHub stars | ★ 87K | ★ 5.0K |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | JavaScript |
| Last push | 2026-09-18 | 2026-09-16 |
| Forks | ⑂ 13K | ⑂ 625 |
| 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 sitespeed.io if
- You want the sitespeed.io feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches JavaScript
- You evaluated both and sitespeed.io 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 sitespeed.io
sitespeed.io is a free, MIT licensed open source web performance tool that drives real browsers to test, monitor, and optimize website speed, and it is aimed at developers, performance engineers, and operations teams that want their own measurement data without signing up for a hosted service.
read the full sitespeed.io overview →
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Frequently asked questions
Is worldmonitor or sitespeed.io more popular?
worldmonitor has 86,752 GitHub stars and sitespeed.io has 5,028. worldmonitor has the larger community by that measure.
Are worldmonitor and sitespeed.io free?
Both are open source. worldmonitor is licensed under AGPL-3.0 and sitespeed.io under MIT. Neither carries a licence fee.
What is the difference between worldmonitor and sitespeed.io?
worldmonitor is written in TypeScript and sitespeed.io in JavaScript. 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 sitespeed.io?
Choose worldmonitor if you want the larger community (86,752 stars) or its AGPL-3.0 licence terms. Choose sitespeed.io if its feature set, stack or MIT licence fits better. Both are self-hostable.