There are 2 open-source alternatives to Splunk in this directory. The most popular is Loki with 28.0k GitHub stars, followed by OpenObserve(18.5k stars). All are open source, free to use, and many can be self-hosted.
| # | Tool | Stars | Language | License |
|---|---|---|---|---|
| 1 | Loki A horizontally-scalable, highly-available log aggregation system inspired by Prometheus, tailored for on-demand, distributed log processing. | 28.0k | Go | GNU Affero General Public License v3.0 |
| 2 | OpenObserve A highly efficient and cost-effective alternative to Elasticsearch, Splunk, and Datadog, designed for handling logs, metrics, traces, Real User Monitoring, error tracking, and session replay at a petabyte scale. | 18.5k | TypeScript | GNU Affero General Public License v3.0 |
A horizontally-scalable, highly-available log aggregation system inspired by Prometheus, tailored for on-demand, distributed log processing.
A highly efficient and cost-effective alternative to Elasticsearch, Splunk, and Datadog, designed for handling logs, metrics, traces, Real User Monitoring, error tracking, and session replay at a petabyte scale.
The top three are Loki(28.0k stars), OpenObserve(18.5k stars). All are open source and free to use.
Yes. Every tool listed here is open source and free to use in your own projects. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Many of the alternatives listed are self-hostable. Each tool's page lists hosting details, system requirements, and licensing terms.
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