head to head · open source
SigNoz vs witr
SigNoz has 32,116 GitHub stars, 2,493 forks, 1,557 open issues and last shipped yesterday. witr has 22,374 stars, 781 forks, 17 open issues and last shipped 1 months ago. SigNoz leads on adoption by 44% (32,116 vs 22,374 stars). SigNoz is written in TypeScript under a custom or non-standard licence; witr is written in Go under Apache-2.0. SigNoz has attracted 8% as many forks as stars, witr 3%. SigNoz was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (go, 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.
← all 8884 open source comparisons
Side by side
| SigNoz | witr | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 22K |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Go |
| Last push | 2026-09-17 | 2026-08-15 |
| Forks | ⑂ 2.5K | ⑂ 781 |
| 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 witr if
- You want the witr feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and witr 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 witr
witr is an open source, Apache 2.0 licensed Go tool with both a command line interface and an interactive terminal UI that traces any process, port, container, or file back to the exact chain of systems that started it, and it is built for operators, SREs, and developers who need to answer "why is this running?" during debugging and incident response.
More in Infrastructure & Operations
Related comparisons
More Monitoring & Observability projects
Compare either of these against the rest of the Monitoring & Observability field.
Frequently asked questions
Is SigNoz or witr more popular?
SigNoz has 32,116 GitHub stars and witr has 22,374. SigNoz has the larger community by that measure.
Are SigNoz and witr free?
Both are open source. SigNoz has no licence declared in this registry, and witr is licensed under Apache-2.0. Both are free to self-host.
What is the difference between SigNoz and witr?
SigNoz is written in TypeScript and witr in Go. 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 witr?
Choose SigNoz if you want the larger community (32,116 stars) or its Custom / other licence terms. Choose witr if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.