head to head · open source
Sentry vs kube-state-metrics
Sentry has 44,806 GitHub stars, 4,857 forks, 2,265 open issues and last shipped today. kube-state-metrics has 6,205 stars, 2,193 forks, 109 open issues and last shipped 3 days ago. Sentry leads on adoption by 622% (44,806 vs 6,205 stars). Sentry is written in Python under a custom or non-standard licence; kube-state-metrics is written in Go under Apache-2.0. Sentry has attracted 11% as many forks as stars, kube-state-metrics 35%. Sentry was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (monitoring), 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
| Sentry | kube-state-metrics | |
|---|---|---|
| GitHub stars | ★ 45K | ★ 6.2K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-09-20 | 2026-09-17 |
| Forks | ⑂ 4.9K | ⑂ 2.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Sentry if
- You weight community size — 45K stars and counting
- You want the Custom / other license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick kube-state-metrics if
- You want the kube-state-metrics 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 kube-state-metrics fits your workflow better
About Sentry
Sentry is an open source debugging platform for detecting, tracing, and fixing software issues in real time. It lives in the developer infrastructure ecosystem and provides error tracking and performance monitoring across languages, frameworks, and runtime environments.
read the full Sentry overview →
About kube-state-metrics
kube state metrics is an Apache 2.0 add on agent for Kubernetes that listens to the Kubernetes API server and exposes metrics about the state of cluster objects, built for platform teams and operators who run Prometheus based monitoring.
read the full kube-state-metrics overview →
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Frequently asked questions
Is Sentry or kube-state-metrics more popular?
Sentry has 44,806 GitHub stars and kube-state-metrics has 6,205. Sentry has the larger community by that measure.
Are Sentry and kube-state-metrics free?
Both are open source. Sentry has no licence declared in this registry, and kube-state-metrics is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Sentry and kube-state-metrics?
Sentry is written in Python and kube-state-metrics 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, Sentry or kube-state-metrics?
Choose Sentry if you want the larger community (44,806 stars) or its Custom / other licence terms. Choose kube-state-metrics if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.