Vitest

Blazing fast unit test framework powered by Vite

Vitest is a Vite-native test runner with Jest-compatible API, native ESM and TypeScript support, and fast HMR-like watch mode. Replacing Jest in modern projects.

Panel Reviews

The Builder

Developer Perspective

Ship

“Jest-compatible API with Vite's speed. ESM and TypeScript work without configuration. The watch mode is instant.”

The Skeptic

Reality Check

Ship

“If you're using Vite, Vitest is the obvious choice. Even without Vite, the speed improvement over Jest is significant.”

The Futurist

Big Picture

Ship

“Vitest is replacing Jest as the default test runner. Speed and modern JavaScript support drive the migration.”