head to head · open source
Sentry vs kube-state-metrics
Sentry has 45,704 GitHub stars, 4,959 forks, 2,265 open issues and last shipped yesterday. kube-state-metrics has 6,235 stars, 2,201 forks, 109 open issues and last shipped 2 days ago. Sentry leads on adoption by 633% (45,704 vs 6,235 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 | ★ 46K | ★ 6.2K |
| License | Custom / other | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-11-04 | 2026-11-03 |
| Forks | ⑂ 5.0K | ⑂ 2.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Sentry if
- You weight community size — 46K 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
Users and logs provide clues. Sentry provides answers. What's Sentry? Sentry is the debugging platform that helps every developer detect, trace, and fix issues. Code breaks, fix it faster. Official Sentry SDKs JavaScript Electron React Native Python Ruby PHP Laravel Go Rust Java/Kotlin Objective C/Swift C\ /F\ C/C++ Dart/Flutter Perl Clojure Elixir Unity Unreal Engine Godot Engine PowerShell Resources Documentation Discussions (Bugs, feature requests, general questions) Discord Contributing Bug Tracker Code Transifex (Translate Sentry\!)
read the full Sentry overview →
About kube-state-metrics
Overview kube state metrics (KSM) is a simple service that listens to the Kubernetes API server and generates metrics about the state of the objects. (See examples in the Metrics section below.) It is not focused on the health of the individual Kubernetes components, but rather on the health of the various objects inside, such as deployments, nodes and pods. kube state metrics is about generating metrics from Kubernetes API objects without modification. This ensures that features provided by kube state metrics have the same grade of stability as the Kubernetes API objects themselves. In turn, this means that…
read the full kube-state-metrics overview →
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Frequently asked questions
Is Sentry or kube-state-metrics more popular?
Sentry has 45,704 GitHub stars and kube-state-metrics has 6,235. 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 (45,704 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.