head to head · open source
worldmonitor vs viztracer
worldmonitor has 86,684 GitHub stars, 13,147 forks, 313 open issues and last shipped yesterday. viztracer has 7,743 stars, 475 forks, 33 open issues and last shipped yesterday. worldmonitor leads on adoption by 1,020% (86,684 vs 7,743 stars). worldmonitor is written in TypeScript under AGPL-3.0; viztracer is written in Python under Apache-2.0. worldmonitor has attracted 15% as many forks as stars, viztracer 6%. 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 | viztracer | |
|---|---|---|
| GitHub stars | ★ 87K | ★ 7.7K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 13K | ⑂ 475 |
| 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 viztracer if
- You want the viztracer feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and viztracer 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 viztracer
VizTracer is a low overhead Python tracing, debugging and profiling tool that records code execution and renders it as an interactive timeline with source code, built for Python developers who need to see what their scripts, threads, subprocesses, async tasks and PyTorch calls are actually doing.
read the full viztracer overview →
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Frequently asked questions
Is worldmonitor or viztracer more popular?
worldmonitor has 86,684 GitHub stars and viztracer has 7,743. worldmonitor has the larger community by that measure.
Are worldmonitor and viztracer free?
Both are open source. worldmonitor is licensed under AGPL-3.0 and viztracer under Apache-2.0. Neither carries a licence fee.
What is the difference between worldmonitor and viztracer?
worldmonitor is written in TypeScript and viztracer 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 viztracer?
Choose worldmonitor if you want the larger community (86,684 stars) or its AGPL-3.0 licence terms. Choose viztracer if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.