Softwr

Testing · head to head

Vitest vs Insomnia

Vitest logo

Vitest

Testing

Fast unit test framework powered by Vite

From
Free
Rated
-
Full reviewWebsite
Insomnia logo

Insomnia

Testing

REST and GraphQL API client for development and testing

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Vitest assumes Vite: projects on webpack or other bundlers lose the main advantage; Insomnia git Sync on the free tier covers up to 3 users only
  • They diverge on capability: Vitest covers Shares Vite config, Insomnia covers REST API Client.

Where they differ

Only the attributes on which Vitest and Insomnia actually diverge.

Attributes where Vitest and Insomnia differ
AttributeVitestInsomnia
Pricing modelOpen source, no licence feefreemium
PlatformsLinux, macOS, WindowsWindows, MacOS, Linux, Web
FoundedUnknown2010

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Testing).

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 Vitest

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

Only in Insomnia

  • REST API Client
  • GraphQL Support
  • gRPC Support
  • GitHub
  • GitLab
  • Slack
  • Windows support
  • MacOS support

What people use each for

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

Vitest

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

Insomnia

  • Sending and debugging HTTP, GraphQL and gRPC requestsnot Vitest
  • Storing collections in Git rather than a vendor cloudnot Vitest
  • Mocking an API endpoint before it existsnot Vitest
  • Running collections in CI with the Inso CLInot Vitest
  • Environment management across staging and productionnot Vitest

Where each one falls short

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

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

Insomnia

  • Git Sync on the free tier covers up to 3 users only
  • Mock servers are capped at 1,000 requests a month on free, then $10 per 25,000
  • Role-based access control requires Pro at $12 per user per month
  • SSO, SCIM and vault integrations are Enterprise only at $45 per user per month
  • Working without an account is limited to the local-only Scratch Pad

Pricing, plan by plan

Vitest

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

Insomnia

Free
  • EssentialsFree
    • unlimited Cloud/Local projects
    • up to 3 users with Git Sync
    • 1,000 mock server requests/month
  • Pro$12/user/month
    • unlimited users with Git Sync access
    • unlimited organizations
    • role-based access control
  • Enterprise$45/user/month
    • Kong Konnect integration
    • SSO (SAML/OIDC)
    • SCIM provisioning

Which should you pick?

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

Choose Insomnia if

  • You need rest api client.
  • You want to start without paying.
  • You work on Windows, MacOS, Linux, Web.
  • You also want graphql support.
Insomnia review

Questions people ask

Is Vitest or Insomnia better?
Neither clearly leads. Vitest starts at Free and Insomnia at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Vitest or Insomnia?
Vitest starts at Free and Insomnia at Free.
Does Vitest or Insomnia run on more platforms?
Vitest runs on Linux, macOS, Windows. Insomnia runs on Windows, MacOS, Linux, Web.
Can I use Vitest for free?
Both have a free tier, so you can try either at no cost before committing.
What is Vitest best used for?
Vitest is most often used for unit testing an application already built with vite, without a second build config, migrating from jest for faster watch-mode feedback, testing typescript and esm code without transform configuration. Of those, unit testing an application already built with vite, without a second build config and migrating from jest for faster watch-mode feedback are not what Insomnia is typically brought in for.
What can Vitest do that Insomnia cannot?
Vitest covers Shares Vite config, Jest-compatible API, Fast watch mode, ESM and TypeScript native. Insomnia covers REST API Client, GraphQL Support, gRPC Support, GitHub.

Answered from the vendors’ own pages

Vitest: Is Vitest free?

Yes, open source under the MIT licence.

Insomnia: How much does Insomnia cost?

Insomnia offers a free Essentials plan. Pro plans cost $12 per user per month with annual billing offering 17% savings. Enterprise plans cost $45 per user per month with support for up to 50 users self-serve; contact sales for larger teams.

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.

Insomnia: Is there a free version of Insomnia?

Yes, the Essentials plan is free and includes unlimited Cloud and Local projects, Git Sync for up to 3 users, 1,000 mock server requests per month, Inso CLI, E2EE, custom linting, plugins, and AI features.

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.

Insomnia: What mock server request limits apply to Insomnia plans?

Essentials includes 1,000 mock server requests per month. Pro includes 10,000 requests per month. Enterprise includes unlimited mock server requests. Additional mock server requests beyond plan allowances cost $10 per 25,000 requests.

Source
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