head to head · open source
kubernetes vs robusta
kubernetes has 128,645 GitHub stars, 45,747 forks, 3,072 open issues and last shipped 2 days ago. robusta has 3,130 stars, 329 forks, 204 open issues and last shipped 2 days ago. kubernetes leads on adoption by 4,010% (128,645 vs 3,130 stars). kubernetes is written in Go under Apache-2.0; robusta is written in Python under MIT. kubernetes has attracted 36% as many forks as stars, robusta 11%. kubernetes was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (containers, kubernetes), 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
| kubernetes | robusta | |
|---|---|---|
| GitHub stars | ★ 129K | ★ 3.1K |
| License | Apache-2.0 | MIT |
| Written in | Go | Python |
| Last push | 2026-11-03 | 2026-11-03 |
| Forks | ⑂ 46K | ⑂ 329 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick kubernetes if
- You weight community size — 129K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick robusta if
- You want the robusta feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and robusta fits your workflow better
About kubernetes
Kubernetes (K8s) Kubernetes, also known as K8s, is an open source system for managing [containerized applications] across multiple hosts. It provides basic mechanisms for the deployment, maintenance, and scaling of applications. Kubernetes builds upon a decade and a half of experience at Google running production workloads at scale using a system called [Borg], combined with best of breed ideas and practices from the community. Kubernetes is hosted by the Cloud Native Computing Foundation ([CNCF]). If your company wants to help shape the evolution of technologies that are container packaged, dynamically…
read the full kubernetes overview →
About robusta
Robusta Classic Prometheus Alert Enrichment for Kubernetes Note: This repository contains Robusta Classic — the rule based alert enrichment engine. For AI powered root cause analysis, see HolmesGPT. Both can be installed together as part of the Robusta platform. What Can Robusta Do? How it Works Installation Integrations ↗ Docs ↗ Slack Community ↗ Compatible with kube prometheus stack, Prometheus Operator, and more. Robusta integrates with Prometheus by webhook and adds features like: Smart Grouping reduce notification spam with Slack threads 🧵 AI Investigation Kickstart alert investigation with AI (optional)…
read the full robusta overview →
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Frequently asked questions
Is kubernetes or robusta more popular?
kubernetes has 128,645 GitHub stars and robusta has 3,130. kubernetes has the larger community by that measure.
Are kubernetes and robusta free?
Both are open source. kubernetes is licensed under Apache-2.0 and robusta under MIT. Neither carries a licence fee.
What is the difference between kubernetes and robusta?
kubernetes is written in Go and robusta in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, kubernetes or robusta?
Choose kubernetes if you want the larger community (128,645 stars) or its Apache-2.0 licence terms. Choose robusta if its feature set, stack or MIT licence fits better. Both are self-hostable.