head to head · open source
SigNoz vs aya
SigNoz has 32,525 GitHub stars, 2,576 forks, 1,557 open issues and last shipped yesterday. aya has 4,892 stars, 484 forks, 201 open issues and last shipped 2 days ago. SigNoz leads on adoption by 565% (32,525 vs 4,892 stars). SigNoz is written in TypeScript under a custom or non-standard licence; aya is written in Rust under Apache-2.0. SigNoz has attracted 8% as many forks as stars, aya 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 (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 | aya | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 4.9K |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Rust |
| Last push | 2026-11-04 | 2026-11-03 |
| Forks | ⑂ 2.6K | ⑂ 484 |
| 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 aya if
- You want the aya 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 aya 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 aya
[![Crates.io][crates badge]][crates url] ![License][license badge] [![Build status][build badge]][build url] [![Book][book badge]][book url] [![Gurubase][gurubase badge]][gurubase url] [crates badge]: [crates url]: [license badge]: [build badge]: [build url]: [book badge]: [book url]: [gurubase badge]: [gurubase url]: API Documentation [![Unreleased Documentation][git docs badge]][git api docs] [![Documentation][api docs badge]][api docs] [git docs badge]: [git api docs]: [api docs badge]: [api docs]: Community [![Discord][discord badge]][chat url] [![Awesome][awesome badge]][awesome aya] Join [the conversation…
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Frequently asked questions
Is SigNoz or aya more popular?
SigNoz has 32,525 GitHub stars and aya has 4,892. SigNoz has the larger community by that measure.
Are SigNoz and aya free?
Both are open source. SigNoz has no licence declared in this registry, and aya is licensed under Apache-2.0. Both are free to self-host.
What is the difference between SigNoz and aya?
SigNoz is written in TypeScript and aya 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 aya?
Choose SigNoz if you want the larger community (32,525 stars) or its Custom / other licence terms. Choose aya if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.