head to head · open source
OpenObserve vs moosestack
OpenObserve has 22,027 GitHub stars, 1,098 forks, 598 open issues and last shipped today. moosestack has 590 stars, 33 forks, 1 open issues and last shipped 2 months ago. OpenObserve leads on adoption by 3,633% (22,027 vs 590 stars). OpenObserve is written in TypeScript under AGPL-3.0; moosestack is written in Rust under MIT. OpenObserve has attracted 5% as many forks as stars, moosestack 6%. OpenObserve was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (analytics, metrics), 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.
← all 20902 open source comparisons
Side by side
| OpenObserve | moosestack | |
|---|---|---|
| GitHub stars | ★ 22K | ★ 590 |
| License | AGPL-3.0 | MIT |
| Written in | TypeScript | Rust |
| Last push | 2026-09-20 | 2026-07-31 |
| Forks | ⑂ 1.1K | ⑂ 33 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenObserve if
- You weight community size — 22K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick moosestack if
- You want the moosestack feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Rust
- You evaluated both and moosestack fits your workflow better
About OpenObserve
OpenObserve is an open source observability platform for logs, metrics, traces, analytics, Real User Monitoring, session replay, pipelines, SLO, and LLM observability. It lives in the cloud native infrastructure ecosystem and is described as an alternative to Datadog, Splunk, and Elasticsearch. The project is built in Rust, ships as a single binary, and uses Parquet columnar storage with an S3 native design.
read the full OpenObserve overview →
About moosestack
MooseStack is an agent harness, distributed as the @514labs/moose cli npm package under the MIT licence, that gives AI coding agents the interfaces, context, code and skills to build and ship applications on top of open source realtime analytical infrastructure such as ClickHouse.
read the full moosestack overview →
More in Infrastructure & Operations
Related comparisons
More Monitoring & Observability projects
Compare either of these against the rest of the Monitoring & Observability field.
Frequently asked questions
Is OpenObserve or moosestack more popular?
OpenObserve has 22,027 GitHub stars and moosestack has 590. OpenObserve has the larger community by that measure.
Are OpenObserve and moosestack free?
Both are open source. OpenObserve is licensed under AGPL-3.0 and moosestack under MIT. Neither carries a licence fee.
What is the difference between OpenObserve and moosestack?
OpenObserve is written in TypeScript and moosestack in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenObserve or moosestack?
Choose OpenObserve if you want the larger community (22,027 stars) or its AGPL-3.0 licence terms. Choose moosestack if its feature set, stack or MIT licence fits better. Both are self-hostable.