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Cloud · head to head

Kustomize vs Soketi

Kustomize logo

Kustomize

Cloud

Template-free customisation of Kubernetes YAML

From
Free
Rated
-
Full reviewWebsite
Soketi logo

Soketi

Developer Tools

Self-hosted, Pusher-compatible WebSockets server with a stalled maintenance record

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Kustomize no packaging or distribution story, which is exactly what Helm charts provide; Soketi maintenance has effectively stalled: the maintainer has said time is severely limited, releases are infrequent, and the community has been discussing whether the project is abandoned, which means security fixes may not arrive.
  • They diverge on capability: Kustomize covers Overlay patching, Soketi covers Pusher protocol compatibility.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Kustomize and Soketi actually diverge.

Attributes where Kustomize and Soketi differ
AttributeKustomizeSoketi
PlatformsKubernetes, Linux, macOS, WindowsLinux, macOS, Windows
CategoryCloudDeveloper Tools

Identical on both: starting price (Free), pricing model (Open source, no licence fee), 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 Kustomize

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

Only in Soketi

  • Pusher protocol compatibility
  • Presence and private channels
  • Horizontal scaling
  • App management backends
  • Webhooks
  • Prometheus metrics

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 Soketi
  • Keeping manifests readable and directly applyable rather than templatednot Soketi
  • Patching third-party manifests without forking themnot Soketi

Soketi

  • A Laravel application that already uses Echo and wants to stop paying a hosted realtime providernot Kustomize
  • Realtime notifications or presence indicators where data must not leave your own infrastructure for compliance reasonsnot Kustomize
  • A local or CI environment that needs a Pusher-compatible server without hitting a paid accountnot Kustomize
  • A high-connection-count application where hosted per-connection pricing has become the largest line in the infrastructure billnot 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

Soketi

  • Maintenance has effectively stalled: the maintainer has said time is severely limited, releases are infrequent, and the community has been discussing whether the project is abandoned, which means security fixes may not arrive.
  • Dependency drift on Node and uWebSockets.js will eventually force you to fork or migrate, and that cost is unbudgeted at the point you adopt it.
  • There is no commercial support to buy, so a production incident at three in the morning is entirely your problem with no escalation path.
  • Scaling beyond a single node needs Redis and careful configuration, and getting presence channels correct across nodes is a genuine source of subtle bugs.
  • It implements the Pusher protocol rather than tracking it, so any protocol feature Pusher adds later will not appear, and the compatibility guarantee slowly decays.

Pricing, plan by plan

Kustomize

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

Soketi

Free
  • SoketiFree
    • MIT licensed
    • Unlimited connections subject to your own hardware
    • No vendor billing

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 Soketi if

  • You need pusher protocol compatibility.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want presence and private channels.
Soketi review

Questions people ask

Is Kustomize or Soketi better?
Neither clearly leads. Kustomize starts at Free and Soketi at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kustomize or Soketi?
Kustomize starts at Free and Soketi at Free.
Does Kustomize or Soketi run on more platforms?
Kustomize runs on Kubernetes, Linux, macOS, Windows. Soketi runs on Linux, macOS, Windows.
Can I use Kustomize for free?
Both have a free tier, so you can try either at no cost before committing.
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 Soketi is typically brought in for.
What can Kustomize do that Soketi cannot?
Kustomize covers Overlay patching, No templating language, Built into kubectl, Generators. Soketi covers Pusher protocol compatibility, Presence and private channels, Horizontal scaling, App management backends.

Answered from the vendors’ own pages

Kustomize: Is Kustomize free?

Yes, open source and part of the Kubernetes project.

Soketi: Is Soketi still maintained?

Barely. The maintainer has stated that available time is very limited and releases have been sparse; treat it as community-maintained.

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.

Soketi: Do I need to change my client code?

No. Pusher client SDKs and Laravel Echo work by changing the host, port and credentials.

Kustomize: Do I need to install Kustomize?

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

Soketi: What does it cost?

Nothing in licence fees. It is MIT licensed; you pay for the server it runs on.

Soketi: What are people moving to?

Laravel Reverb for Laravel applications, and Sockudo, a Rust reimplementation, for others.

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