# Vitest

> MIT Vite-native unit/integration test runner

**Category:** Libraries  
**Pricing:** open-source  
**URL:** https://vitest.dev  
**GitHub:** https://github.com/vitest-dev/vitest  
**Added:** 2026-09-06

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## The Hook

Vitest is the test runner when your app already lives in Vite and Jest feels like a second bundler tax.

## What's Good

MIT. Jest-compatible API, Vite transform pipeline, watch mode, TypeScript/ESM first-class, browser mode options. Shares config/plugins with Vite. Fast feedback in Vite apps and libraries.

## The Catch

Vs Vite: Vite-native test runner; not the bundler. Not full E2E browser suites. Closest when Vite is already the toolchain.

## Verdict

MIT Vite test runner. Free forever; Vite itself is the bundler gem.