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Cloud · head to head

Kustomize vs Strapi

Kustomize logo

Kustomize

Cloud

Template-free customisation of Kubernetes YAML

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 Kustomize has a free tier, so it costs nothing to try first.
  • Each has a real cost: Kustomize no packaging or distribution story, which is exactly what Helm charts provide; Strapi cloud pricing is per project, not per account, so a second project doubles the bill
  • They diverge on capability: Kustomize covers Overlay patching, Strapi covers REST API.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Kustomize and Strapi actually diverge.

Attributes where Kustomize and Strapi differ
AttributeKustomizeStrapi
Starting priceFree$35/month
Pricing modelOpen source, no licence feesubscription
Free tierYesNo
PlatformsKubernetes, Linux, macOS, WindowsNode.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 Kustomize

  • Overlay patching
  • No templating language
  • Built into kubectl
  • Generators

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.

Kustomize

  • Managing dev, staging and production variants of the same manifestsnot Strapi
  • Keeping manifests readable and directly applyable rather than templatednot Strapi
  • Patching third-party manifests without forking themnot Strapi

Strapi

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

Where each one falls short

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

Kustomize

  • No packaging or distribution story, which is exactly what Helm charts provide
  • Deeply nested overlays become hard to follow, and reasoning about the final output requires building it
  • No release lifecycle: nothing tracks what is installed or supports rollback the way Helm does
  • Patch syntax is fiddly for anything beyond simple field replacement

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

Kustomize

Free
  • KustomizeFree
    • 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 Kustomize if

  • You need overlay patching.
  • You want to start without paying.
  • You work on Kubernetes, Linux, macOS, Windows.
  • You also want no templating language.
Kustomize 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 Kustomize or Strapi better?
Neither clearly leads. Kustomize 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, Kustomize or Strapi?
Kustomize has a free tier; the other does not. Paid plans start at Free for Kustomize and $35/month for Strapi.
Does Kustomize or Strapi run on more platforms?
Kustomize runs on Kubernetes, Linux, macOS, Windows. Strapi runs on Node.js, Cloud, Self-hosted, Docker.
Can I use Kustomize for free?
Yes. Kustomize has a free tier, so you can try it without paying. Strapi starts at $35/month.
What is Kustomize best used for?
Kustomize is most often used for managing dev, staging and production variants of the same manifests, keeping manifests readable and directly applyable rather than templated, patching third-party manifests without forking them. Of those, managing dev, staging and production variants of the same manifests and keeping manifests readable and directly applyable rather than templated are not what Strapi is typically brought in for.
What can Kustomize do that Strapi cannot?
Kustomize covers Overlay patching, No templating language, Built into kubectl, Generators. Strapi covers REST API, GraphQL API, Content management, PostgreSQL.

Answered from the vendors’ own pages

Kustomize: Is Kustomize free?

Yes, open source and part of the Kubernetes project.

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
Kustomize: Kustomize or Helm?

Kustomize patches plain YAML and keeps bases readable; Helm templates and packages applications with a release lifecycle. Many teams use both — Helm to install third-party charts, Kustomize to patch them.

Strapi: Is yearly billing available?

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

Source
Kustomize: Do I need to install Kustomize?

No. It is built into kubectl, available through kubectl apply -k.

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
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