k3s
Top pickCertified Kubernetes in a single small binary — no platform tax.
94
sovereigntyThe most-adopted lightweight Kubernetes: one ~70 MB binary, a cluster in minutes, CNCF-certified conformance, and a huge community. Born for edge, now running everywhere teams decided they need Kubernetes itself rather than a platform wrapped around it.
OPEN SOURCEApache-2.0SELF-HOSTLOCAL-FIRST
LicenseApache-2.0
PricingFree, open-source; optional SUSE Rancher Prime support subscription
Open sourceYes
Self-hostableYes
Local-first dataYes
What it does well
- +Single-binary install — a real cluster in minutes
- +CNCF-certified conformant Kubernetes
- +Massive adoption from edge to production SaaS
Where it falls short
- −Default SQLite datastore needs an etcd swap for HA
- −Fast release pace — test upgrades before rolling
- −No vendor support unless you add SUSE's
k3s as an alternative to
Where k3s shows up in our comparisons, and how it ranked.
k3s head-to-head
Straight comparisons against the tools people weigh it against.