head to head · open source
Grafana Loki vs FASTER
Grafana Loki has 29,120 GitHub stars, 4,173 forks, 1,620 open issues and last shipped yesterday. FASTER has 6,635 stars, 592 forks, 36 open issues and last shipped 17 days ago. Grafana Loki leads on adoption by 339% (29,120 vs 6,635 stars). Grafana Loki is written in Go under AGPL-3.0; FASTER is written in C# under MIT. Grafana Loki has attracted 14% as many forks as stars, FASTER 9%. Grafana Loki was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (logging), 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
| Grafana Loki | FASTER | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 6.6K |
| License | AGPL-3.0 | MIT |
| Written in | Go | C# |
| Last push | 2026-11-04 | 2026-10-19 |
| Forks | ⑂ 4.2K | ⑂ 592 |
| 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 FASTER if
- You want the FASTER feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and FASTER 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 FASTER
[!IMPORTANT] This repository is no longer actively maintained. We encourage users to look at Garnet — this project evolves FASTER into a full fledged remote cache store with strong performance (throughput and latency), scalability, storage, recovery, and more. Garnet's storage engine, Tsavorite , is a highly optimized and evolved fork of FASTER. Introduction Managing large application state easily, resiliently, and with high performance is one of the hardest problems in the cloud today. The FASTER project offers two artifacts to help tackle this problem. FASTER Log is a high performance concurrent persistent…
read the full FASTER overview →
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Frequently asked questions
Is Grafana Loki or FASTER more popular?
Grafana Loki has 29,120 GitHub stars and FASTER has 6,635. Grafana Loki has the larger community by that measure.
Are Grafana Loki and FASTER free?
Both are open source. Grafana Loki is licensed under AGPL-3.0 and FASTER under MIT. Neither carries a licence fee.
What is the difference between Grafana Loki and FASTER?
Grafana Loki is written in Go and FASTER in C#. 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 FASTER?
Choose Grafana Loki if you want the larger community (29,120 stars) or its AGPL-3.0 licence terms. Choose FASTER if its feature set, stack or MIT licence fits better. Both are self-hostable.