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APIs · head to head

Hoppscotch vs K3s

Hoppscotch logo

Hoppscotch

APIs

Open-source API development ecosystem with web-based REST client

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: Hoppscotch open-source project with no published commercial support plans or pricing; 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: Hoppscotch covers REST Client, K3s covers Single binary.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Hoppscotch and K3s actually diverge.

Attributes where Hoppscotch and K3s differ
AttributeHoppscotchK3s
Pricing modelfreemiumOpen source, no licence fee
PlatformsWeb, Desktop, Self-hostedLinux, ARM, Self-hosted
CategoryAPIsCloud
Founded2019Unknown

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 Hoppscotch

  • REST Client
  • WebSocket
  • gRPC Client
  • GitHub
  • Documentation tools
  • CI/CD
  • Web support
  • Desktop 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.

Hoppscotch

  • API Developmentnot K3s
  • API Gatewaynot K3s
  • API Testingnot K3s
  • API Documentationnot K3s
  • Microservicesnot K3s

K3s

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

Where each one falls short

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

Hoppscotch

  • Open-source project with no published commercial support plans or pricing
  • No official enterprise tier or SLA information disclosed

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

Hoppscotch

Free
  • Open SourceFree
    • Full REST client
    • WebSocket support
    • Community
  • Teams$8/monthly
    • Team collaboration
    • Cloud sync
    • Priority support

K3s

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

Which should you pick?

Choose Hoppscotch if

  • You need rest client.
  • You want to start without paying.
  • You work on Web, Desktop, Self-hosted.
  • You also want websocket.
Hoppscotch 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 Hoppscotch or K3s better?
Neither clearly leads. Hoppscotch 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, Hoppscotch or K3s?
Hoppscotch starts at Free and K3s at Free.
Does Hoppscotch or K3s run on more platforms?
Hoppscotch runs on Web, Desktop, Self-hosted. K3s runs on Linux, ARM, Self-hosted.
Can I use Hoppscotch for free?
Both have a free tier, so you can try either at no cost before committing.
What is Hoppscotch best used for?
Hoppscotch is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what K3s is typically brought in for.
What can Hoppscotch do that K3s cannot?
Hoppscotch covers REST Client, WebSocket, gRPC Client, GitHub. K3s covers Single binary, SQLite by default, Certified conformant, Batteries included.

Answered from the vendors’ own pages

Hoppscotch: Is Hoppscotch free to use for API development?

Yes, Hoppscotch is a completely free, open-source API development ecosystem. There are no subscription fees, license costs, or registration requirements to access the core platform.

Source
K3s: Is K3s free?

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

Hoppscotch: Can I deploy Hoppscotch on my own infrastructure?

As an open-source project, Hoppscotch can be self-hosted and deployed on your own infrastructure. The source code is available for customization and deployment in private environments.

Source
K3s: Is K3s real Kubernetes?

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

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.

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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