head to head · open source
Grafana Loki vs Cachet
Grafana Loki has 28,909 GitHub stars, 4,112 forks, 1,620 open issues and last shipped yesterday. Cachet has 15,242 stars, 1,632 forks, 7 open issues and last shipped yesterday. Grafana Loki leads on adoption by 90% (28,909 vs 15,242 stars). Grafana Loki is written in Go under AGPL-3.0; Cachet is written in PHP under a custom or non-standard licence. Grafana Loki has attracted 14% as many forks as stars, Cachet 11%. Cachet was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Grafana Loki | Cachet | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 15K |
| License | AGPL-3.0 | Custom / other |
| Written in | Go | PHP |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 4.1K | ⑂ 1.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Grafana Loki if
- You weight community size — 29K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick Cachet if
- You want the Cachet feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches PHP
- You evaluated both and Cachet fits your workflow better
About Grafana Loki
Grafana Loki is a log aggregation system designed as the log oriented counterpart to Prometheus. It operates within the cloud native observability ecosystem, specifically targeting Kubernetes and containerized environments. Loki avoids expensive full text indexing by indexing only metadata labels attached to log streams, storing the raw log content in compressed form. This design choice makes Loki significantly simpler to operate and more cost effective than traditional log systems that index every word.
read the full Grafana Loki overview →
About Cachet
Cachet is an open source, self hosted status page system. It lives in the PHP and Laravel ecosystem, and it is categorized under Infrastructure and Operations and Monitoring and Observability. The project is intended for teams that need a dedicated place to communicate service status and downtime in a transparent way.
read the full Cachet overview →
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Frequently asked questions
Is Grafana Loki or Cachet more popular?
Grafana Loki has 28,909 GitHub stars and Cachet has 15,242. Grafana Loki has the larger community by that measure.
Are Grafana Loki and Cachet free?
Both are open source. Grafana Loki is licensed under AGPL-3.0, and Cachet has no licence declared in this registry. Both are free to self-host.
What is the difference between Grafana Loki and Cachet?
Grafana Loki is written in Go and Cachet in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Grafana Loki or Cachet?
Choose Grafana Loki if you want the larger community (28,909 stars) or its AGPL-3.0 licence terms. Choose Cachet if its feature set, stack or Custom / other licence fits better. Both are self-hostable.