head to head · open source
SigNoz vs mulog
SigNoz has 32,525 GitHub stars, 2,576 forks, 1,557 open issues and last shipped yesterday. mulog has 540 stars, 50 forks, 12 open issues and last shipped 4 months ago. SigNoz leads on adoption by 5,923% (32,525 vs 540 stars). SigNoz is written in TypeScript under a custom or non-standard licence; mulog is written in Clojure under Apache-2.0. SigNoz has attracted 8% as many forks as stars, mulog 9%. 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 | mulog | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 540 |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Clojure |
| Last push | 2026-11-04 | 2026-06-27 |
| Forks | ⑂ 2.6K | ⑂ 50 |
| 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 mulog if
- You want the mulog feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Clojure
- You evaluated both and mulog 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 mulog
μ/log μ/log (Pronounced: /mjuːlog/) is a micro logging library that logs events and data, not words! From the Greek letter μ , mu (Pronunciation: /mjuː/) The twelfth letter of the Greek alphabet (Μ, μ), often used as a prefix for micro which is 10 6 in the SI (System of Units). Lowercase letter " u " is often substituted for " μ " when the Greek character is not typographically available. (source: Features Here some features and key design decisions that make μ/log special: Effortlessly, logs events as data points. No need to construct strings that then need to be deconstructed later. Fast, extremely fast, under…
read the full mulog overview →
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Frequently asked questions
Is SigNoz or mulog more popular?
SigNoz has 32,525 GitHub stars and mulog has 540. SigNoz has the larger community by that measure.
Are SigNoz and mulog free?
Both are open source. SigNoz has no licence declared in this registry, and mulog is licensed under Apache-2.0. Both are free to self-host.
What is the difference between SigNoz and mulog?
SigNoz is written in TypeScript and mulog in Clojure. 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 mulog?
Choose SigNoz if you want the larger community (32,525 stars) or its Custom / other licence terms. Choose mulog if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.