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Comparison · Infra & APIs
k0s vs Windmill
A side-by-side editorial comparison of k0s and Windmill — release velocity, themes, recent moves, and the top alternatives to consider.
k0s vs Windmill: at a glance
What is k0s?
k0s opens its 1.37 line while security fixes ride the older branches.
k0s published v1.37.1 alongside 1.36.5, 1.35.9 and 1.34.12 on the same morning, so four branches are now live. The older branches took Kubernetes patch bumps, etcd 3.6.15 and deferred manifest directory creation, and 1.36 also scoped the worker autopilot to its own Node. In September, 1.36.4+k0s.1 and 1.35.8+k0s.1 shipped a fix for GHSA-qjgc-wmg7-3jc3, with csr-approver hardening on the 1.35 branch.
What is Windmill?
Windmill adds workspace roles and AI decision steps as its agent tooling fills out.
Windmill is an open-source workflow and internal-tools platform adding AI and governance features quickly. Mid-September brought a headless Chat SDK for chat-mode flows, per-run tool selection for AI agent steps, origin allowlists for HTTP routes, GitHub CI gating and GitLab git-sync parity. October added an AI decision step, operator builder rights and default Developer and Operator workspace roles.
k0s vs Windmill: editorial side-by-side
k0s
5.0INFRA · APIS
k0s opens its 1.37 line while security fixes ride the older branches.
◆ Current state
k0s published v1.37.1 alongside 1.36.5, 1.35.9 and 1.34.12 on the same morning, so four branches are now live. The older branches took Kubernetes patch bumps, etcd 3.6.15 and deferred manifest directory creation, and 1.36 also scoped the worker autopilot to its own Node. In September, 1.36.4+k0s.1 and 1.35.8+k0s.1 shipped a fix for GHSA-qjgc-wmg7-3jc3, with csr-approver hardening on the 1.35 branch.
◆ Where it's heading
The branch-parallel pattern is holding and now has a new top line. Lifecycle safety stays the core work: reset steps wired to contexts, autopilot retries and discovery refreshes, and autopilot scope limited to its own node. The 1.37 notes read as a long development log rather than a curated release, which fits a project that lets upstream Kubernetes carry the feature story.
◆ Prediction
Expect the next Kubernetes patch round to reach all four branches within hours of each other, and the oldest of them to drop off now that 1.37 is out, though these notes do not state a support window.
Windmill
5.0INFRA · APIS
Windmill adds workspace roles and AI decision steps as its agent tooling fills out.
◆ Current state
Windmill is an open-source workflow and internal-tools platform adding AI and governance features quickly. Mid-September brought a headless Chat SDK for chat-mode flows, per-run tool selection for AI agent steps, origin allowlists for HTTP routes, GitHub CI gating and GitLab git-sync parity. October added an AI decision step, operator builder rights and default Developer and Operator workspace roles.
◆ Where it's heading
Windmill is building AI agents into flows as first-class steps with controls over which tools they can use, while adding the role and access model enterprises need to let more people build. Developer workflow parity across Git hosts continues in parallel.
◆ Prediction
Expect more AI agent controls and role-based permissions; whether the Chat SDK grows into a hosted chat product is unclear.
Alternatives to k0s and Windmill
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either k0s or Windmill.
Hanko
Hanko maps SAML and OIDC attributes into custom claims, a step toward enterprise SSO.
Apache Airflow
Airflow's provider candidates go final while 3.4 and the TypeScript SDK stay in testing.
Timely
Timely adds seat visibility and per-period budgets in a steady run of weekly releases.
Volatility
Volatility 3 2.28.2 adds Mermaid tree output and starts deprecating macOS analysis.
GLAuth
GLAuth's September releases are security dependency updates and build fixes.
See all k0s alternatives → · See all Windmill alternatives →
Recent activity from k0s and Windmill
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 6d agok0sk0s opens the 1.37 line with v1.37.1
- 6d agok0s1.36.5: Kubernetes bump, etcd 3.6.15, scoped worker autopilot
- 6d agok0sv1.35.9: Kubernetes, etcd and containerd roll-up
- 6d agok0sv1.34.12: Kubernetes and etcd roll-up
- 12d agoWindmillWorkspace roles
- 24d agoWindmillOperator builder rights for flows and full-code apps
- 28d agoWindmillAI decision flow step
- 1mo agok0s1.36.4+k0s.1 fixes GHSA-qjgc-wmg7-3jc3
- 1mo agok0s1.35.8+k0s.1 fixes GHSA-qjgc-wmg7-3jc3, hardens csr-approver
- 1mo agoWindmillChat SDK for flows in chat mode
- 1mo agoWindmillEnabled tools for AI agent steps
- 1mo agoWindmillGate GitHub pull requests on Windmill CI tests
Frequently asked questions
What is the difference between k0s and Windmill?
They serve adjacent needs but don't currently overlap on shipped themes. k0s and Windmill are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is k0s better than Windmill?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. k0s and Windmill are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to k0s?
Top k0s alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "k0s alternatives" section above for the current picks, or visit /alternatives/k0s for the full list with editorial commentary on each.
What are the best alternatives to Windmill?
Top Windmill alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Windmill alternatives" section above for the current picks, or visit /alternatives/windmill for the full list with editorial commentary on each.