head to head · open source
SigNoz vs telemetry
SigNoz has 32,525 GitHub stars, 2,576 forks, 1,557 open issues and last shipped yesterday. telemetry has 923 stars, 76 forks, 6 open issues and last shipped 1 months ago. SigNoz leads on adoption by 3,424% (32,525 vs 923 stars). SigNoz is written in TypeScript under a custom or non-standard licence; telemetry is written in Erlang under Apache-2.0. SigNoz has attracted 8% as many forks as stars, telemetry 8%. 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 | telemetry | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 923 |
| License | Custom / other | Apache-2.0 |
| Written in | TypeScript | Erlang |
| Last push | 2026-11-04 | 2026-09-30 |
| Forks | ⑂ 2.6K | ⑂ 76 |
| 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 telemetry if
- You want the telemetry feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Erlang
- You evaluated both and telemetry 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 telemetry
Telemetry Documentation Telemetry is a lightweight library for dynamic dispatching of events, with a focus on metrics and instrumentation. Any Erlang or Elixir library can use telemetry to emit events. Application code and other libraries can then hook into those events and run custom handlers. Note: this library is agnostic to tooling and therefore is not directly related to OpenTelemetry. For OpenTelemetry in the Erlang VM, see opentelemetry erlang, and check opentelemetry telemetry to connect both libraries. Usage In a nutshell, you register a custom module and function to be invoked for certain events, which…
read the full telemetry overview →
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Frequently asked questions
Is SigNoz or telemetry more popular?
SigNoz has 32,525 GitHub stars and telemetry has 923. SigNoz has the larger community by that measure.
Are SigNoz and telemetry free?
Both are open source. SigNoz has no licence declared in this registry, and telemetry is licensed under Apache-2.0. Both are free to self-host.
What is the difference between SigNoz and telemetry?
SigNoz is written in TypeScript and telemetry in Erlang. 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 telemetry?
Choose SigNoz if you want the larger community (32,525 stars) or its Custom / other licence terms. Choose telemetry if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.