Vitest

Next Generation Testing Framework

A Vite-native testing framework. It's fast!

Vite Powered

Reuse Vite's config and plugins - consistent across your app and tests. But it's not required to use Vitest!

Jest Compatible

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

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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

Vladimir

An open source fullstack developer

Core team member of Vitest & Vite

Anthony Fu

A fanatical open sourceror, working @ NuxtLabs

Core team member of Vite & Vue

Ari Perkkiö

A fullstack developer, working @ Cloudamite

Core team member of Vitest

Patak

A collaborative being, working @ StackBlitz

Core team member of Vite & Vue

Joaquín Sánchez

A fullstack and android developer

Vite's fanatical follower

Dunqing

A passionate enthusiast of open source contributions

Team member of Vitest & UnoCSS

Mohammad Bagher

An open source developer

Team member of Poimandres & Vike

Ivan Demchuk

A tech lead, fullstack developer

Author of fluent-vue

Zixuan Chen

A fullstack developer

Working on CRDTs & local-first software

Yoho Po

It's no problem in my locall

Core team member of Vite & Team member of Vitest

Hiroshi Ogawa

Open source enthusiast

Team member of Vitest