head to head · open source
SigNoz vs whisper
SigNoz has 32,146 GitHub stars, 2,497 forks, 1,557 open issues and last shipped today. whisper has 1,261 stars, 322 forks, 8 open issues and last shipped 10 months ago. SigNoz leads on adoption by 2,449% (32,146 vs 1,261 stars). SigNoz is written in TypeScript under a custom or non-standard licence; whisper is written in Python under Apache-2.0. SigNoz has attracted 8% as many forks as stars, whisper 26%. 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 | whisper | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 1.3K |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-09-20 | 2025-12-01 |
| Forks | ⑂ 2.5K | ⑂ 322 |
| 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 whisper if
- You want the whisper 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 whisper 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 whisper
Whisper is the file based time series database library at the storage layer of Graphite, built for operators and developers who need to record numeric metrics over time as plain files on disk rather than in a separate database server.
read the full whisper overview →
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Frequently asked questions
Is SigNoz or whisper more popular?
SigNoz has 32,146 GitHub stars and whisper has 1,261. SigNoz has the larger community by that measure.
Are SigNoz and whisper free?
Both are open source. SigNoz has no licence declared in this registry, and whisper is licensed under Apache-2.0. Both are free to self-host.
What is the difference between SigNoz and whisper?
SigNoz is written in TypeScript and whisper 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, SigNoz or whisper?
Choose SigNoz if you want the larger community (32,146 stars) or its Custom / other licence terms. Choose whisper if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.