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
“Jest-compatible API with Vite's speed. ESM and TypeScript work without configuration. The watch mode is instant.”
The Skeptic
Reality Check
“If you're using Vite, Vitest is the obvious choice. Even without Vite, the speed improvement over Jest is significant.”
The Futurist
Big Picture
“Vitest is replacing Jest as the default test runner. Speed and modern JavaScript support drive the migration.”
Community Sentiment
“Jest's days are numbered — Vitest is faster, ESM-native, and shares your Vite config”
“Migrated 400 Jest tests to Vitest in an afternoon, watch mode is shockingly fast”
“Vitest is the first test runner that doesn't feel like it's fighting your toolchain”
“The HMR-like test watching changes everything about the TDD workflow in Vite projects”