Compare / SigNoz vs Grafana Loki
SigNoz vs Grafana Loki
Pick SigNoz if you want MIT-community OpenTelemetry APM (logs, metrics, traces — skip ee/; the published New Relic stack). Pick Grafana Loki if you want AGPL-3.0 Prometheus-shaped logs next to Grafana OSS.
Facts checked 26 Oct 2026. License, language, and GitHub activity come from the catalog or the project's own repo. "Not in the catalog row" means the public catalog dump does not store that number.
SigNoz in the catalog Grafana Loki in the catalog Start on Railway
How they compare
| SigNoz | Grafana Loki | |
|---|---|---|
| License | MIT community (skip ee/ and cmd/enterprise/) source | GNU Affero General Public License v3.0 (catalog) source |
| Language | TypeScript (catalog) | Go (catalog) |
| GitHub activity | 32,448 stars in the catalog; last push 26 Oct 2026 source | 29,055 stars in the catalog; last push 26 Oct 2026 source |
| Self-host | Published as /stacks/signoz-observability. ClickHouse plus the query service. | Log aggregation. Pair with Grafana OSS. |
| Best for | The published New Relic APM path (traces plus logs). | Prometheus-shaped logs if you already run Grafana. |
Self-hosting and resource needs
SigNoz is the published lander — /stacks/signoz-observability. Loki is grafana/loki. Grafana OSS dashboards stay on /stacks/grafana-observability. OpenSearch is the published Splunk / Loggly cluster — /stacks/opensearch. Neither has a one-click c17 Railway template.
FAQ
- Is this Datadog?
- Datadog dashboards stay on /replace/datadog (Grafana OSS). This pair is logs and traces.
- Graylog?
- SSPL-1.0 — /compare/graylog-vs-loki.
- Are these free?
- SigNoz community is MIT if you skip ee/. Loki is AGPL-3.0. You pay hosting.
- How do I deploy SigNoz?
- Open /stacks/signoz-observability. Persist ClickHouse. Confirm one trace and one log.
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