head to head · open source
OpenObserve vs node_exporter
OpenObserve has 22,027 GitHub stars, 1,098 forks, 598 open issues and last shipped today. node_exporter has 13,792 stars, 2,711 forks, 314 open issues and last shipped 17 days ago. OpenObserve leads on adoption by 60% (22,027 vs 13,792 stars). OpenObserve is written in TypeScript under AGPL-3.0; node_exporter is written in Go under Apache-2.0. OpenObserve has attracted 5% as many forks as stars, node_exporter 20%. OpenObserve was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (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.
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Side by side
| OpenObserve | node_exporter | |
|---|---|---|
| GitHub stars | ★ 22K | ★ 14K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | TypeScript | Go |
| Last push | 2026-09-20 | 2026-09-03 |
| Forks | ⑂ 1.1K | ⑂ 2.7K |
| 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 node_exporter if
- You want the node_exporter feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and node_exporter 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 node_exporter
Node exporter is a Prometheus exporter for hardware and OS metrics exposed by \ NIX kernels. It is written in Go and ships with pluggable metric collectors, so the set of measurements it gathers can be tuned per host rather than fixed at build time. The project lives in the Prometheus ecosystem, is published under the Apache 2.0 license, and has been developed for roughly thirteen years, with the repository showing 13,782 stars and 2,708 forks at the time of writing.
read the full node_exporter overview →
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Frequently asked questions
Is OpenObserve or node_exporter more popular?
OpenObserve has 22,027 GitHub stars and node_exporter has 13,792. OpenObserve has the larger community by that measure.
Are OpenObserve and node_exporter free?
Both are open source. OpenObserve is licensed under AGPL-3.0 and node_exporter under Apache-2.0. Neither carries a licence fee.
What is the difference between OpenObserve and node_exporter?
OpenObserve is written in TypeScript and node_exporter in Go. 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 node_exporter?
Choose OpenObserve if you want the larger community (22,027 stars) or its AGPL-3.0 licence terms. Choose node_exporter if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.