head to head · open source
Grafana Loki vs frostmourne
Grafana Loki has 29,120 GitHub stars, 4,173 forks, 1,620 open issues and last shipped yesterday. frostmourne has 1,496 stars, 318 forks, 31 open issues and last shipped 7 months ago. Grafana Loki leads on adoption by 1,847% (29,120 vs 1,496 stars). Grafana Loki is written in Go under AGPL-3.0; frostmourne is written in Java under MIT. Grafana Loki has attracted 14% as many forks as stars, frostmourne 21%. 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 | frostmourne | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 1.5K |
| License | AGPL-3.0 | MIT |
| Written in | Go | Java |
| Last push | 2026-11-04 | 2026-04-17 |
| Forks | ⑂ 4.2K | ⑂ 318 |
| 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 frostmourne if
- You want the frostmourne feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Java
- You evaluated both and frostmourne 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 frostmourne
Github地址 Gitee地址 中文 English 📖 介绍 Frostmourne (霜之哀伤)是汽车之家经销商技术部监控系统的开源版本，用于帮助监控几乎所有数据库数据(包括 Elasticsearch , Prometheus , SkyWalking , MySql 等等)。如果你已经建立起了日志系统， 指标体系，却苦恼于没有一个配套监控系统，也许它能帮到你。使用本系统得当，至少可以做到线上应用出了什么问题，相关开发能第一时间了解报错情况，知道问题出在哪里， 可以快速响应处理，几乎先于所有人知道线上的情况，也因为心中有数所以可以从容应对各种问询，一点都不慌，你们团队值得拥有。 项目初衷 在用 ELK 建立起日志系统之后，我们发现应用日志监控这块除了 ElastAlert 之外，没有其他方案。我们初期使用 ElastAlert 来解决日志监控的问题， 但是随着配置的增加，不仅管理成本和使用成本较高，稳定性方面也不能让我们满意，所以为了更好的易用性，稳定性，我们决定自己做一套简单的监控系统， 来解决日志监控的问题。 项目并不局限于 Elasticsearch 数据，还支持 HTTP , PING , Telnet 监控， Prometheus , SkyWalking , InfluxDB ， MySQL , ClickHouse , IoTDB , SqlServer 数据监控，…
read the full frostmourne overview →
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Frequently asked questions
Is Grafana Loki or frostmourne more popular?
Grafana Loki has 29,120 GitHub stars and frostmourne has 1,496. Grafana Loki has the larger community by that measure.
Are Grafana Loki and frostmourne free?
Both are open source. Grafana Loki is licensed under AGPL-3.0 and frostmourne under MIT. Neither carries a licence fee.
What is the difference between Grafana Loki and frostmourne?
Grafana Loki is written in Go and frostmourne in Java. 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 frostmourne?
Choose Grafana Loki if you want the larger community (29,120 stars) or its AGPL-3.0 licence terms. Choose frostmourne if its feature set, stack or MIT licence fits better. Both are self-hostable.