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Helm vs Kustomize: catalog facts
Helm	Kustomize
Free Free and open source, maintained by the Helm community under the CNCF.	Free Free and open source.
Windows, macOS, Linux, Command line	Command line
Repeatable installs of complex Kubernetes applications In-place upgrades and one-command rollbacks	Built into kubectl as apply -k Plain YAML with no templating language
Only useful if you run Kubernetes Chart templating adds its own layer to learn	Only useful for Kubernetes configuration Layered overlays can be hard to follow in large setups
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: Apache-2.0
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.