Testing · head to head
Vitest vs CircleCI
The short version
- Each has a real cost: Vitest assumes Vite: projects on webpack or other bundlers lose the main advantage; CircleCI the free plan covers 6,000 build minutes and 5 active users a month
Where they differ
Only the attributes on which Vitest and CircleCI actually diverge.
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 CircleCI
Nothing recorded that Vitest does not also cover.
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 CircleCI
- Migrating from Jest for faster watch-mode feedbacknot CircleCI
- Testing TypeScript and ESM code without transform configurationnot CircleCI
CircleCI
- Continuous integration pipelines for application codenot Vitest
- Parallel test execution across containersnot Vitest
- Docker-based builds with layer cachingnot Vitest
- Deployment pipelines with approval gatesnot Vitest
- Self-hosted runners for private infrastructurenot 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
CircleCI
- The free plan covers 6,000 build minutes and 5 active users a month
- Active users are billed at $15 each beyond the included five, and an active user is anyone who commits to a project
- Everything runs on credits, so compute, Docker layer caching at 200 credits a job and IP ranges at 450 credits per GB all draw from the same pool
- Network and storage overage costs 420 credits per GB
- Free credits expire monthly with no rollover, and paid credits expire after a year
- Scale is annual billing only
Pricing, plan by plan
Vitest
Free- VitestFree
- Full functionality
- Unlimited tests
- Community support
CircleCI
Free- FreeFree
- Up to 6,000 build minutes (small Docker resource class)
- Up to 5 active users per month
- 30,000 free credits per month
- Performance$15/month
- 30,000 credits included monthly
- 5 active users included (additional users $15/month each)
- 80x concurrency
- Scale$null/year
- Custom number of credits
- Customizable user limits
- Unlimited concurrency
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.
Questions people ask
- Is Vitest or CircleCI better?
- Neither clearly leads. Vitest starts at Free and CircleCI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Vitest or CircleCI?
- Vitest starts at Free and CircleCI at Free.
- Does Vitest or CircleCI run on more platforms?
- Vitest runs on Linux, macOS, Windows. CircleCI runs on 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 CircleCI is typically brought in for.
- What can Vitest do that CircleCI cannot?
- Vitest covers Shares Vite config, Jest-compatible API, Fast watch mode, ESM and TypeScript native.
Answered from the vendors’ own pages
Vitest: Is Vitest free?
Yes, open source under the MIT licence.
CircleCI: How much does CircleCI Performance plan cost?
CircleCI Performance plan costs $15 USD per month and includes 30,000 credits, 5 active users, 80x concurrency, 5 GB network, and 2 GB storage. Additional users beyond 5 cost $15 each per month.
SourceVitest: 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.
CircleCI: Can I purchase additional credits on CircleCI Performance plan?
Yes, additional credits are available at $15 for every 25,000 credits purchased. Paid credits roll over month to month and expire after one year; free plan credits expire monthly without rollover.
SourceVitest: 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.
CircleCI: What is included in the CircleCI free plan?
The free plan includes up to 6,000 build minutes per month (small Docker resource class), 5 active users, 30,000 free credits monthly, 30x concurrency, 1 GB network, 2 GB storage, and community support. No credit card required.
SourceCircleCI: What are the Scale plan limits and pricing?
CircleCI Scale plan offers custom pricing billed annually with unlimited concurrency, 50 GB network, 200 GB storage, customizable credits and users, enterprise controls, and GPU environment access. Requires contacting sales for a quote.
SourceRelated pages
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