head to head · open source
Grafana Loki vs Cachet
Grafana Loki has 29,111 GitHub stars, 4,169 forks, 1,620 open issues and last shipped yesterday. Cachet has 15,263 stars, 1,631 forks, 7 open issues and last shipped yesterday. Grafana Loki leads on adoption by 91% (29,111 vs 15,263 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%. Grafana Loki 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 | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 4.2K | ⑂ 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
Loki: like Prometheus, but for logs. Loki is a horizontally scalable, highly available, multi tenant log aggregation system inspired by Prometheus. It is designed to be very cost effective and easy to operate. It does not index the contents of the logs, but rather a set of labels for each log stream. Compared to other log aggregation systems, Loki: does not do full text indexing on logs. By storing compressed, unstructured logs and only indexing metadata, Loki is simpler to operate and cheaper to run. indexes and groups log streams using the same labels you’re already using with Prometheus, enabling you to…
read the full Grafana Loki overview →
About Cachet
Cachet, the open source self hosted status page system. Cachet 3.x Announcement For more information on the Cachet rebuild and our plans for 3.x, you can read the announcement here. Requirements PHP 8.3 or later Composer A supported database: MariaDB, MySQL, PostgreSQL or SQLite Installation, Upgrades and Documentation You can find documentation at Here are some useful quick links: Installing Cachet Demo To test out the v3 demo, you can log in to the Cachet dashboard with the following credentials: Email: test@test.com Password: test123 Note The demo automatically resets every 30 minutes. Sponsors Security…
read the full Cachet overview →
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Frequently asked questions
Is Grafana Loki or Cachet more popular?
Grafana Loki has 29,111 GitHub stars and Cachet has 15,263. 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 (29,111 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.