Vitest

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Score7.3

Rank#4 of 32

PriceFree

Free planYes

Runs onLinux, macOS, Web, Windows

Summary

Vitest is a testing framework powered by Vite, though it can also run without Vite. It can reuse Vite configuration, plugins, resolvers and transform pipelines, and its Jest-compatible APIs cover assertions, snapshots and mocking. These APIs can support migration from Jest. Watch mode reruns tests related to changed source or test files, and Vitest supports TypeScript, JSX and ES modules out of the box. Browser Mode runs tests natively in a browser and supports Playwright and WebdriverIO providers. The feature set includes component testing for Vue, React, Svelte, Lit, Marko and other frameworks, plus coverage through V8 or Istanbul and benchmarking powered by Tinybench. Vitest provides an official Visual Studio Code extension and can be tried in a browser through StackBlitz without a local installation. It is free and open source. The getting started guide lists Vite 6.4.0 or later and Node 22.12.0 or later as requirements. Users needing help can turn to the Vitest Discord community or GitHub Discussions.

Who it is for

Vitest suits JavaScript and TypeScript developers who want a Vite-integrated testing framework, or a framework that can run without Vite. Its Jest-compatible APIs may help teams moving from Jest.

What is good

Reuses Vite configuration and plugins.
Jest-compatible APIs cover assertions, snapshots and mocking.
Watch mode reruns tests related to changed files.
Browser Mode supports Playwright and WebdriverIO.
Free and open source.

What to know first

Requires Vite 6.4.0 or later when using Vite.
Requires Node 22.12.0 or later.
No plan limits are stated.

Verdict

Vitest combines Vite integration with Jest-compatible APIs, browser testing and coverage tools. Check the listed Vite and Node requirements before getting started.

Vitest plans and pricing

All plans

Free and open source Free No plan limits stated vitest.dev · 30 Sept 2026

Compared on unit testing frameworks

Free plan: Yesvitest.dev
Snapshot testing: Yesvitest.dev
Parallel execution: Yesvitest.dev

Facts

Product: Vitest is a Vite-powered testing framework.vitest.dev · 30 Sept 2026
Vite integration: Vitest can reuse Vite configuration, plugins, resolvers, and transform pipelines, and can also run without Vite.vitest.dev · 30 Sept 2026
Jest compatibility: Vitest offers Jest-compatible APIs for assertions, snapshots, and mocking to support migration from Jest.vitest.dev · 30 Sept 2026
Watch mode: Watch mode reruns tests related to changed source or test files.vitest.dev · 30 Sept 2026
Languages: Vitest provides out-of-the-box support for TypeScript, JSX, and ES modules.vitest.dev · 30 Sept 2026
Browser testing: Browser Mode runs tests natively in a browser and supports Playwright and WebdriverIO providers.vitest.dev · 30 Sept 2026
Component testing: The features guide lists component testing for Vue, React, Svelte, Lit, Marko, and other frameworks.vitest.dev · 30 Sept 2026
Coverage: Vitest supports code coverage through V8 or Istanbul.vitest.dev · 30 Sept 2026
Benchmarking: Vitest lists benchmarking support powered by Tinybench.vitest.dev · 30 Sept 2026
IDE integration: The getting started guide says Vitest provides an official Visual Studio Code extension.vitest.dev · 30 Sept 2026
Try online: Vitest can be tried in the browser through StackBlitz without installing it locally.vitest.dev · 30 Sept 2026
Requirements: The getting started guide says Vitest requires Vite 6.4.0 or later and Node 22.12.0 or later.vitest.dev · 30 Sept 2026
Support: The guide directs users needing help to the Vitest Discord community and GitHub Discussions.vitest.dev · 30 Sept 2026
Security: The maker's announcement says it plans an enterprise JavaScript tooling solution designed for scale and security requirements; it does not state a Vitest security certification.voidzero.dev · 30 Sept 2026
Maintainer: VoidZero's About page identifies Evan You as Founder and CEO.voidzero.dev · 30 Sept 2026