head to head · open source
SigNoz vs airframe
SigNoz has 32,525 GitHub stars, 2,576 forks, 1,557 open issues and last shipped yesterday. airframe has 666 stars, 67 forks, 105 open issues and last shipped 2 days ago. SigNoz leads on adoption by 4,784% (32,525 vs 666 stars). SigNoz is written in TypeScript under a custom or non-standard licence; airframe is written in Scala under Apache-2.0. SigNoz has attracted 8% as many forks as stars, airframe 10%. 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 | airframe | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 666 |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Scala |
| Last push | 2026-11-04 | 2026-11-03 |
| Forks | ⑂ 2.6K | ⑂ 67 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick SigNoz if
- You weight community size — 33K 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 airframe if
- You want the airframe feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Scala
- You evaluated both and airframe fits your workflow better
About SigNoz
中文 · Deutsch · Português SigNoz is an open source observability platform built on OpenTelemetry. We’re building an enterprise grade alternative to fragmented monitoring stacks, with logs, metrics, traces, alerts, and dashboards in one place. Choose how to run SigNoz SigNoz Cloud (Recommended) Fully managed SigNoz with a 30 day free trial, no credit card required, usage based pricing that starts at $49, and regional data hosting. Start free → Enterprise Enterprise Cloud, BYOC, or Enterprise Self Hosted with compliance, support, custom retention, RBAC, ingestion controls, data residency, and region selection…
read the full SigNoz overview →
About airframe
[![Gitter Chat][gitter badge]][gitter link] [![CI Status][gha badge]][gha link] [![scala index][sindex badge]][sindex link] [![maven central][central badge]][central link] [circleci badge]: [circleci link]: [gha badge]: [gha link]: [gitter badge]: [gitter link]: [coverall badge]: [coverall link]: [sindex badge]: [sindex link]: [central badge]: [central link]: Airframe is essential building blocks for developing applications in Scala, including logging, object serialization using JSON or MessagePack, dependency injection, http server/client with RPC support, functional testing with AirSpec, etc. Resources…
read the full airframe overview →
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Frequently asked questions
Is SigNoz or airframe more popular?
SigNoz has 32,525 GitHub stars and airframe has 666. SigNoz has the larger community by that measure.
Are SigNoz and airframe free?
Both are open source. SigNoz has no licence declared in this registry, and airframe is licensed under Apache-2.0. Both are free to self-host.
What is the difference between SigNoz and airframe?
SigNoz is written in TypeScript and airframe in Scala. 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 airframe?
Choose SigNoz if you want the larger community (32,525 stars) or its Custom / other licence terms. Choose airframe if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.