head to head · open source
SigNoz vs pup
SigNoz has 32,146 GitHub stars, 2,497 forks, 1,557 open issues and last shipped today. pup has 1,014 stars, 121 forks, 12 open issues and last shipped 2 days ago. SigNoz leads on adoption by 3,070% (32,146 vs 1,014 stars). SigNoz is written in TypeScript under a custom or non-standard licence; pup is written in Rust under Apache-2.0. SigNoz has attracted 8% as many forks as stars, pup 12%. SigNoz was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (observability), 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 | pup | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 1.0K |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Rust |
| Last push | 2026-09-20 | 2026-09-18 |
| Forks | ⑂ 2.5K | ⑂ 121 |
| 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 pup if
- You want the pup feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and pup 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 pup
Pup is an Apache 2.0 licensed, Rust written command line client from Datadog that exposes more than 200 commands across over 33 Datadog product domains, letting AI agents and the humans who supervise them query observability data from a terminal.
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Frequently asked questions
Is SigNoz or pup more popular?
SigNoz has 32,146 GitHub stars and pup has 1,014. SigNoz has the larger community by that measure.
Are SigNoz and pup free?
Both are open source. SigNoz has no licence declared in this registry, and pup is licensed under Apache-2.0. Both are free to self-host.
What is the difference between SigNoz and pup?
SigNoz is written in TypeScript and pup in Rust. 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 pup?
Choose SigNoz if you want the larger community (32,146 stars) or its Custom / other licence terms. Choose pup if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.