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Cloud · head to head

K3s vs Strapi

K3s logo

K3s

Cloud

Lightweight certified Kubernetes distribution in a single binary

From
Free
Rated
-
Full reviewWebsite
Strapi logo

Strapi

APIs

Headless CMS with REST and GraphQL APIs

From
$35/month
Rated
-
Full reviewWebsite

The short version

  • Only K3s has a free tier, so it costs nothing to try first.
  • Each has a real cost: K3s the SQLite default is single-server only; highly available control planes need etcd or an external datastore, which removes much of the simplicity; Strapi cloud pricing is per project, not per account, so a second project doubles the bill
  • They diverge on capability: K3s covers Single binary, Strapi covers REST API.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which K3s and Strapi actually diverge.

Attributes where K3s and Strapi differ
AttributeK3sStrapi
Starting priceFree$35/month
Pricing modelOpen source, no licence feesubscription
Free tierYesNo
PlatformsLinux, ARM, Self-hostedNode.js, Cloud, Self-hosted, Docker
CategoryCloudAPIs
FoundedUnknown2015

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in K3s

  • Single binary
  • SQLite by default
  • Certified conformant
  • Batteries included
  • Low resource footprint
  • Simple install

Only in Strapi

  • REST API
  • GraphQL API
  • Content management
  • PostgreSQL
  • MySQL
  • MongoDB
  • AWS
  • Webhooks

What people use each for

The jobs each tool is most often brought in to do.

K3s

  • Kubernetes on edge sites and IoT hardware where full clusters will not fitnot Strapi
  • Development and CI clusters that must start fast and cost nothingnot Strapi
  • Small production clusters where full Kubernetes is more operations than the workload justifiesnot Strapi
  • Teaching and learning Kubernetes without cloud spendnot Strapi

Strapi

  • Running a self hosted headless CMS with a REST or GraphQL APInot K3s
  • Giving editors a content admin panel over a custom content modelnot K3s

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

K3s

  • The SQLite default is single-server only; highly available control planes need etcd or an external datastore, which removes much of the simplicity
  • Bundled components such as Traefik are opinionated defaults that larger teams often strip out and replace
  • Removed in-tree cloud provider integrations mean cloud-specific features need external controllers
  • Aimed at small and edge clusters, so very large deployments are better served by a standard distribution

Strapi

  • Cloud pricing is per project, not per account, so a second project doubles the bill
  • Starter at $35 a month allows 100,000 API requests, and overage is $1.50 per 25,000
  • Extra bandwidth is $30 per 100 GB and extra asset storage $0.60 per GB
  • Backups start at the Pro plan, weekly, and only become daily at Business
  • An uptime SLA is Business only, at $450 a month per project
  • Additional environments cost $60 a month on Pro and $300 a month on Business

Pricing, plan by plan

K3s

Free
  • K3sFree
    • Full functionality
    • No usage limits
    • Community support

Strapi

$35/month
  • Starter$35/month
    • 100k API requests
    • 50 GB asset storage
    • 50 GB asset bandwidth
  • Pro$90/month
    • 1M API requests
    • 250 GB asset storage
    • 500 GB asset bandwidth
  • Business$450/month
    • 10M API requests
    • 1000 GB asset storage
    • 1000 GB asset bandwidth

Which should you pick?

Choose K3s if

  • You need single binary.
  • You want to start without paying.
  • You work on Linux, ARM, Self-hosted.
  • You also want sqlite by default.
K3s review

Choose Strapi if

  • You need rest api.
  • You work on Node.js, Cloud, Self-hosted, Docker.
  • You also want graphql api.
Strapi review

Questions people ask

Is K3s or Strapi better?
Neither clearly leads. K3s starts at Free and Strapi at $35/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, K3s or Strapi?
K3s has a free tier; the other does not. Paid plans start at Free for K3s and $35/month for Strapi.
Does K3s or Strapi run on more platforms?
K3s runs on Linux, ARM, Self-hosted. Strapi runs on Node.js, Cloud, Self-hosted, Docker.
Can I use K3s for free?
Yes. K3s has a free tier, so you can try it without paying. Strapi starts at $35/month.
What is K3s best used for?
K3s is most often used for kubernetes on edge sites and iot hardware where full clusters will not fit, development and ci clusters that must start fast and cost nothing, small production clusters where full kubernetes is more operations than the workload justifies, teaching and learning kubernetes without cloud spend. Of those, kubernetes on edge sites and iot hardware where full clusters will not fit and development and ci clusters that must start fast and cost nothing are not what Strapi is typically brought in for.
What can K3s do that Strapi cannot?
K3s covers Single binary, SQLite by default, Certified conformant, Batteries included. Strapi covers REST API, GraphQL API, Content management, PostgreSQL.

Answered from the vendors’ own pages

K3s: Is K3s free?

Yes. K3s is open source with no licence fee. SUSE sells commercial support around Rancher separately.

Strapi: How much do API request overages cost?

Additional API requests beyond the plan limit cost $1.50 per 25000 requests. Extra asset storage costs $0.60 per GB, and additional bandwidth costs $30 per 100 GB.

Source
K3s: Is K3s real Kubernetes?

Yes. It is CNCF-certified conformant, so standard manifests, kubectl and Helm charts work without modification.

Strapi: Is yearly billing available?

Yes, yearly billing saves up to 17% compared to monthly billing on Strapi Cloud plans.

Source
K3s: Why is K3s smaller than Kubernetes?

It strips legacy, alpha and in-tree cloud provider code, packages everything as one binary, and defaults to SQLite instead of etcd.

Strapi: What is included with the Pro plan?

The Pro plan costs $90 per month per project and includes 1M API requests, 250 GB asset storage, 500 GB bandwidth, multi-environment support, weekly backups, and manual backups.

Source
K3s: Can K3s run in production?

Yes, and it does, particularly at the edge and for small clusters. For a highly available control plane you need to move off the SQLite default to etcd or an external datastore.

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