head to head · open source
SigNoz vs phantomas
SigNoz has 32,146 GitHub stars, 2,497 forks, 1,557 open issues and last shipped today. phantomas has 2,262 stars, 135 forks, 65 open issues and last shipped 4 days ago. SigNoz leads on adoption by 1,321% (32,146 vs 2,262 stars). SigNoz is written in TypeScript under a custom or non-standard licence; phantomas is written in JavaScript under BSD-2-Clause. SigNoz has attracted 8% as many forks as stars, phantomas 6%. SigNoz was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (metrics), 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
| SigNoz | phantomas | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 2.3K |
| License | Custom / other | BSD-2-Clause |
| Written in | TypeScript | JavaScript |
| Last push | 2026-09-20 | 2026-09-16 |
| Forks | ⑂ 2.5K | ⑂ 135 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SigNoz if
- You weight community size — 32K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick phantomas if
- You want the phantomas feature set and don't need the biggest community
- You prefer the BSD-2-Clause license terms
- Your stack matches JavaScript
- You evaluated both and phantomas fits your workflow better
About SigNoz
SigNoz is an open source, OpenTelemetry native observability platform for cloud native applications. It unifies logs, metrics, traces, alerts, and dashboards into a single tool, replacing fragmented monitoring stacks with a correlated signal pipeline. It lives in the observability ecosystem alongside tools like Prometheus, Jaeger, and Grafana, and is positioned as an open alternative to Datadog.
read the full SigNoz overview →
About phantomas
phantomas is a modular, headless Chromium based web performance metrics collector written in JavaScript, released under the BSD 2 Clause licence, and intended for developers and operations teams who need to measure and monitor real page behaviour from Node.js scripts, test suites, or containers.
read the full phantomas overview →
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Frequently asked questions
Is SigNoz or phantomas more popular?
SigNoz has 32,146 GitHub stars and phantomas has 2,262. SigNoz has the larger community by that measure.
Are SigNoz and phantomas free?
Both are open source. SigNoz has no licence declared in this registry, and phantomas is licensed under BSD-2-Clause. Both are free to self-host.
What is the difference between SigNoz and phantomas?
SigNoz is written in TypeScript and phantomas 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, SigNoz or phantomas?
Choose SigNoz if you want the larger community (32,146 stars) or its Custom / other licence terms. Choose phantomas if its feature set, stack or BSD-2-Clause licence fits better. Both are self-hostable.