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APIs · head to head

Directus vs K3s

Directus logo

Directus

APIs

Open-source data platform providing REST and GraphQL APIs

From
Free
Rated
-
Full reviewWebsite
K3s logo

K3s

Cloud

Lightweight certified Kubernetes distribution in a single binary

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Directus free permissive use of the self hosted product is limited to organisations under $5M annual revenue with fewer than 50 employees, so crossing either threshold turns a free dependency into a paid licence; K3s the SQLite default is single-server only; highly available control planes need etcd or an external datastore, which removes much of the simplicity
  • They diverge on capability: Directus covers REST API, K3s covers Single binary.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Directus and K3s actually diverge.

Attributes where Directus and K3s differ
AttributeDirectusK3s
Pricing modelopen-sourceOpen source, no licence fee
PlatformsNode.js, Cloud, Self-hosted, DockerLinux, ARM, Self-hosted
CategoryAPIsCloud
Founded2014Unknown

Identical on both: starting price (Free), free tier (Yes), 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 Directus

  • REST API
  • GraphQL API
  • Database management
  • PostgreSQL
  • MySQL
  • SQLite
  • Webhooks
  • Node.js support

Only in K3s

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

What people use each for

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

Directus

  • Wrapping an existing SQL database in a REST and GraphQL API with an admin interfacenot K3s
  • Running a self hosted headless CMS over a schema you already ownnot K3s

K3s

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

Where each one falls short

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

Directus

  • Free permissive use of the self hosted product is limited to organisations under $5M annual revenue with fewer than 50 employees, so crossing either threshold turns a free dependency into a paid licence
  • The free Core tier is a hard limit of 3 seats, 25 collections and 5 flows
  • The Team plan is $499 a month billed annually, or $599 monthly, with extra seats at $50 each
  • Team caps collections at 50, expandable to 100, and flows at 20

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

Pricing, plan by plan

Directus

Free
  • CommunityFree
    • Self-hosted Directus
    • Community support
  • Cloud$25/monthly
    • Managed cloud
    • Automatic updates
    • Backups

K3s

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

Which should you pick?

Choose Directus if

  • You need rest api.
  • You want to start without paying.
  • You work on Node.js, Cloud, Self-hosted, Docker.
  • You also want graphql api.
Directus review

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

Questions people ask

Is Directus or K3s better?
Neither clearly leads. Directus starts at Free and K3s at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Directus or K3s?
Directus starts at Free and K3s at Free.
Does Directus or K3s run on more platforms?
Directus runs on Node.js, Cloud, Self-hosted, Docker. K3s runs on Linux, ARM, Self-hosted.
Can I use Directus for free?
Both have a free tier, so you can try either at no cost before committing.
What is Directus best used for?
Directus is most often used for wrapping an existing sql database in a rest and graphql api with an admin interface, running a self hosted headless cms over a schema you already own. Of those, wrapping an existing sql database in a rest and graphql api with an admin interface and running a self hosted headless cms over a schema you already own are not what K3s is typically brought in for.
What can Directus do that K3s cannot?
Directus covers REST API, GraphQL API, Database management, PostgreSQL. K3s covers Single binary, SQLite by default, Certified conformant, Batteries included.

Answered from the vendors’ own pages

Directus: What is Directus's pricing?

Directus Core is free and self-hosted. The Team tier costs $499/month (annual) or $599/month (rolling), including 10 user seats and cloud hosting at $99/month additional. Enterprise plans have custom pricing. Additional seats cost $50/month each.

Source
K3s: Is K3s free?

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

Directus: Can I use Directus for free?

Yes, Directus Core is completely free with 3 user seats, 25 Collections, 5 Flows, AI Assistant, and Advanced RBAC. Self-hosting is available at no cost.

Source
K3s: Is K3s real Kubernetes?

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

Directus: How many user seats does each Directus tier include?

Core includes 3 user seats, Team includes 10 SSO seats, and Enterprise includes custom SSO seat counts. Additional Team seats cost $50/seat per month.

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.

Directus: What happens to my monthly Directus plan if I switch?

Monthly plans are grandfathered for six months after switching, and annual plans are honored until renewal. Self-hosted licenses are handled case-by-case at renewal.

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.

Directus: Is there a free trial for Directus?

No trial period is mentioned. Users can start with the free Core tier immediately without a credit card.

Source
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