Vitest Vite Testing Framework

---
name: "Vitest Next-Generation Vite-Powered Testing Framework"
slug: "vitest-vite-testing-framework"
description: "Vitest is a blazing-fast unit testing framework powered by Vite. It provides native ESM support, TypeScript out of the box, and a Jest-compatible API for seamless migration of existing test suites."
github_stars: 16296
verification: "security_reviewed"
source: "https://github.com/vitest-dev/vitest"
category: "Code Quality & Review"
framework: "Multi-Framework"
tool_ecosystem:
  github_repo: "vitest-dev/vitest"
  github_stars: 16296
  npm_package: "vitest"
  npm_weekly_downloads: 62243262
---

# Vitest Next-Generation Vite-Powered Testing Framework

Vitest is a blazing-fast unit testing framework powered by Vite. It provides native ESM support, TypeScript out of the box, and a Jest-compatible API for seamless migration of existing test suites.

## Installation

Use the upstream install or setup path that matches your environment:
- $ npx vitest

Requirements and caveats from upstream:
- Vitest requires Vite >=v6.4.0 and Node >=v22.12.0

Basic usage or getting-started notes:
- <a href="https://vitest.dev">Documentation</a> | <a href="https://vitest.dev/guide/">Getting Started</a> | <a href="https://vitest.dev/guide/#examples">Examples</a> | <a href="https://vitest.dev/guide/why">Why Vitest?...
- Run your tests in the browser natively

- Source: https://github.com/vitest-dev/vitest
- Extracted from upstream docs: https://raw.githubusercontent.com/vitest-dev/vitest/HEAD/README.md

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/vitest-vite-testing-framework/)