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Cloud · head to head

kind vs Supabase

kind logo

kind

Cloud

Run Kubernetes clusters inside Docker containers

From
Free
Rated
-
Full reviewWebsite
Supabase logo

Supabase

Technology

The open source Firebase alternative

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: kind requires Docker or Podman, so it inherits whatever container runtime limitations exist on the host; Supabase free tier projects auto-pause after 1 week of inactivity
  • They diverge on capability: kind covers Nodes as containers, Supabase covers PostgreSQL database.

Where they differ

Only the attributes on which kind and Supabase actually diverge.

Attributes where kind and Supabase differ
AttributekindSupabase
Pricing modelOpen source, no licence feeUnknown
PlatformsLinux, macOS, WindowsWeb, iOS, Android
CategoryCloudTechnology
FoundedUnknown2020

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 kind

  • Nodes as containers
  • Multi-node topologies
  • CI-friendly
  • Local image loading

Only in Supabase

  • PostgreSQL database
  • Auto-generated APIs
  • Authentication & authorization
  • Real-time subscriptions
  • Storage
  • Edge functions
  • Vector embeddings
  • Database migrations

What people use each for

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

kind

  • Spinning up and destroying a Kubernetes cluster inside a CI jobnot Supabase
  • Testing controllers and operators against several Kubernetes versionsnot Supabase
  • Local multi-node clusters without the memory cost of virtual machinesnot Supabase

Supabase

  • Web application backends using Postgres plus auto-generated REST/GraphQL APIsnot kind
  • Mobile app backends via Flutter/Swift/Kotlin client librariesnot kind
  • AI applications using vector/embeddings storagenot kind
  • Authentication with 20+ social providers plus email/passwordnot kind
  • File and media storage (S3-compatible with CDN) and realtime sync over WebSocketsnot kind

Where each one falls short

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

kind

  • Requires Docker or Podman, so it inherits whatever container runtime limitations exist on the host
  • Fewer conveniences than minikube: no addon system, so ingress and metrics need manual installation
  • Because nodes are containers sharing the host kernel, it is a weaker simulation of real node behaviour and storage

Supabase

  • Free tier projects auto-pause after 1 week of inactivity
  • Free tier hard caps: 500 MB database, 1 GB file storage, 5 GB egress/month, 50,000 monthly active users, max 2 active free projects per organization
  • Pro plan charges usage overages beyond included quotas, e.g. $0.00325 per MAU above 100,000 and $0.125/GB disk above 8 GB
  • SOC2/ISO 27001 certification and HIPAA (add-on) compliance require the $599/month Team plan; not available on the $25/month Pro plan

Pricing, plan by plan

kind

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

Supabase

Free
  • FreeFree
    • 50,000 MAU
    • 500MB database
    • 5GB egress
  • Pro$25/month
    • 100,000 MAU
    • 8GB disk
    • 250GB egress
  • Team$599/month
    • SOC2 and ISO 27001
    • HIPAA add-on
    • 28-day log / 14-day backup retention
  • Enterprise$undefined/month
    • Custom limits
    • Dedicated support manager
    • 24/7/365 support

Which should you pick?

Choose kind if

  • You need nodes as containers.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want multi-node topologies.
kind review

Choose Supabase if

  • You need postgresql database.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want auto-generated apis.
Supabase review

Questions people ask

Is kind or Supabase better?
Neither clearly leads. kind starts at Free and Supabase at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, kind or Supabase?
kind starts at Free and Supabase at Free.
Does kind or Supabase run on more platforms?
kind runs on Linux, macOS, Windows. Supabase runs on Web, iOS, Android.
Can I use kind for free?
Both have a free tier, so you can try either at no cost before committing.
What is kind best used for?
kind is most often used for spinning up and destroying a kubernetes cluster inside a ci job, testing controllers and operators against several kubernetes versions, local multi-node clusters without the memory cost of virtual machines. Of those, spinning up and destroying a kubernetes cluster inside a ci job and testing controllers and operators against several kubernetes versions are not what Supabase is typically brought in for.
What can kind do that Supabase cannot?
kind covers Nodes as containers, Multi-node topologies, CI-friendly, Local image loading. Supabase covers PostgreSQL database, Auto-generated APIs, Authentication & authorization, Real-time subscriptions.

Answered from the vendors’ own pages

kind: Is kind free?

Yes, open source and maintained under Kubernetes SIGs.

Supabase: How much does Supabase cost?

Supabase offers a free tier and three paid plans. Pro starts at $25 per month, Team at $599 per month, and Enterprise requires a custom quote. All pricing is in USD charged monthly.

Source
kind: Why run Kubernetes nodes as containers?

Speed and cost. A container node starts in seconds and uses far less memory than a virtual machine, which is what makes per-CI-run clusters realistic.

Supabase: What are Supabase's usage overage fees?

Pro plan users pay $0.00325 per monthly active user over the 100,000 included, and $0.125 per GB for database storage exceeding 8 GB per project. Compute instances cost $10 to $3,730+ per month.

Source
kind: Is kind suitable for production?

No. It is a development and testing tool, and node isolation is weaker than real nodes because containers share the host kernel.

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