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k3sup vs Kubespray: catalog facts
k3sup	Kubespray
Free Free and open source under the MIT licence.	Free Free and open source.
Windows, macOS, Linux, Command line	Self-hosted, Command line
Only needs SSH access to the target machine Single Go binary for Linux, Windows, macOS and Raspberry Pi	Repeatable cluster installs driven by Ansible inventories Maintained under the Kubernetes SIGs organisation
Limited to k3s rather than other Kubernetes distributions Repository also contains an EULA file, so check the terms for any extra components	Requires familiarity with Ansible and Kubernetes Heavier than lightweight single-binary Kubernetes installers
Downloadable app	Downloadable app, Self-hosted
Open source	Open source
License: MIT	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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