This documentation covers pre-stable Vitest v0 (old version). For the latest version, see https://vitest.dev.

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Vitest

Blazing Fast Unit Test Framework

A Vite-native unit test framework. It's fast!

Vitest

Vite Powered

Reuse Vite's config, transformers, resolvers, and plugins - consistent across your app and tests.

Jest Compatible

Expect, snapshot, coverage, and more - migrating from Jest is straightforward.

Smart & instant watch mode

Only rerun the related changes, just like HMR for tests!

ESM, TypeScript, JSX

Out-of-box ESM, TypeScript and JSX support powered by esbuild

Meet The Team

Ari Perkkiö

Ari Perkkiö

A fullstack developer, working @ Cloudamite

Team member of Vitest

Ivan Demchuk

Ivan Demchuk

A tech lead, fullstack developer

Author of fluent-vue

Yoho Po

Yoho Po

It's no problem in my locall

Core team member of Vite & Team member of Vitest

Contributors

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