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APIs · head to head

Kong Gateway vs Vitest

Kong Gateway logo

Kong Gateway

APIs

Open-source and cloud API gateway for managing microservices traffic

From
Free
Rated
-
Full reviewWebsite
Vitest logo

Vitest

Testing

Fast unit test framework powered by Vite

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Kong Gateway the free open-source gateway lacks the analytics, portals, and support of the paid Konnect tiers.; Vitest assumes Vite: projects on webpack or other bundlers lose the main advantage
  • They diverge on capability: Kong Gateway covers API request routing, Vitest covers Shares Vite config.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Kong Gateway and Vitest actually diverge.

Attributes where Kong Gateway and Vitest differ
AttributeKong GatewayVitest
Pricing modelfreemiumOpen source, no licence fee
Platformsweb, linux, apiLinux, macOS, Windows
CategoryAPIsTesting
Founded2017Unknown

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 Kong Gateway

  • API request routing
  • Plugin ecosystem
  • Developer portals
  • AI Gateway
  • Analytics and observability
  • SSO and audit logs

Only in Vitest

  • Shares Vite config
  • Jest-compatible API
  • Fast watch mode
  • ESM and TypeScript native

What people use each for

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

Kong Gateway

  • Routing and securing traffic across microservicesnot Vitest
  • Publishing internal or external developer portalsnot Vitest
  • Managing rate limits and authentication at the API edgenot Vitest
  • Gateway-level routing to multiple LLM providersnot Vitest

Vitest

  • Unit testing an application already built with Vite, without a second build confignot Kong Gateway
  • Migrating from Jest for faster watch-mode feedbacknot Kong Gateway
  • Testing TypeScript and ESM code without transform configurationnot Kong Gateway

Where each one falls short

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

Kong Gateway

  • The free open-source gateway lacks the analytics, portals, and support of the paid Konnect tiers.
  • Plus tier caps API requests at 1M/month before incurring per-million overage charges.
  • Enterprise pricing is custom and not published, making budgeting harder without sales contact.
  • Configuration and plugin management can require significant operational expertise to run at scale.

Vitest

  • Assumes Vite: projects on webpack or other bundlers lose the main advantage
  • Younger than Jest, so some plugins and matchers in the Jest ecosystem have no equivalent
  • Jest compatibility is close but not exact, and unusual Jest configurations still need work to port

Pricing, plan by plan

Kong Gateway

Free
  • Free TrialFree
    • 30-day enterprise functionality trial
    • Unlimited gateways
    • 30-day analytics retention
  • Plus$undefined/month
    • Up to 5 serverless, 2 hybrid, 2 dedicated cloud gateways
    • 1M API requests/month included
    • Up to 2 developer portals
  • Enterprise$undefined/month
    • Unlimited hybrid and dedicated cloud gateways
    • Unlimited developer portals
    • SSO and audit logs

Vitest

Free
  • VitestFree
    • Full functionality
    • Unlimited tests
    • Community support

Which should you pick?

Choose Kong Gateway if

  • You need api request routing.
  • You want to start without paying.
  • You work on web, linux, api.
  • You also want plugin ecosystem.
Kong Gateway review

Choose Vitest if

  • You need shares vite config.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want jest-compatible api.
Vitest review

Questions people ask

Is Kong Gateway or Vitest better?
Neither clearly leads. Kong Gateway starts at Free and Vitest at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Kong Gateway or Vitest?
Kong Gateway starts at Free and Vitest at Free.
Does Kong Gateway or Vitest run on more platforms?
Kong Gateway runs on web, linux, api. Vitest runs on Linux, macOS, Windows.
Can I use Kong Gateway for free?
Both have a free tier, so you can try either at no cost before committing.
What is Kong Gateway best used for?
Kong Gateway is most often used for routing and securing traffic across microservices, publishing internal or external developer portals, managing rate limits and authentication at the api edge, gateway-level routing to multiple llm providers. Of those, routing and securing traffic across microservices and publishing internal or external developer portals are not what Vitest is typically brought in for.
What can Kong Gateway do that Vitest cannot?
Kong Gateway covers API request routing, Plugin ecosystem, Developer portals, AI Gateway. Vitest covers Shares Vite config, Jest-compatible API, Fast watch mode, ESM and TypeScript native.

Answered from the vendors’ own pages

Kong Gateway: Is Kong Gateway free?

Kong's core gateway is open source and free to self-host. Kong Konnect, the managed cloud platform, offers a 30-day free trial before moving to paid Plus or custom Enterprise pricing.

Source
Vitest: Is Vitest free?

Yes, open source under the MIT licence.

Kong Gateway: How is usage metered on the Plus plan?

The Plus plan includes 1M API requests per month, with additional usage billed at $200 per extra 1 million requests up to a 10M/month cap, plus per-gateway and per-LLM-model charges.

Source
Vitest: Is Vitest compatible with Jest?

The API is deliberately Jest-compatible and most migrations are mechanical, though unusual configurations and some ecosystem plugins need attention.

Kong Gateway: What support is included?

Plus includes email support with a 2-business-day SLA, while Enterprise adds dedicated success managers and professional services.

Source
Vitest: Do I need Vite to use Vitest?

It works without a Vite app but the main benefit — sharing one config and transform pipeline — only applies if you are already using Vite.

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Related pages

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