Jest vs. Vitest Comparison


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About Jest aims to work out of the box, config free, on most JavaScript projects. Make tests which keep track of large objects with ease. Snapshots live either alongside your tests, or embedded inline. Tests are parallelized by running them in their own processes to maximize performance. Tests are parallelized by running them in their own processes to maximize performance. By ensuring your tests have unique global state, Jest can reliably run tests in parallel. To make things quick, Jest runs previously failed tests first and re-organizes runs based on how long test files take. By ensuring your tests have unique global state, Jest can reliably run tests in parallel. To make things quick, Jest runs previously failed tests first and re-organizes runs based on how long test files take. Jest uses a custom resolver for imports in your tests, making it simple to mock any object outside of your test’s scope.	About Vitest is a next-generation testing framework powered by Vite, designed to make testing fast, lightweight, and closely integrated with modern JavaScript development. Because it builds on Vite, Vitest understands existing Vite configuration and can reuse the same resolve and transform pipelines used by an application during development and builds. It can also be used without Vite and works for backend code as well. Vitest provides a Jest-compatible API, including expect assertions, snapshots, mocking, and coverage, making migration from Jest straightforward for many projects. Its smart watch mode reruns only tests related to changed files, using an experience similar to Vite’s instant Hot Module Replacement. Vitest supports ESM, TypeScript, and JSX out of the box, reducing the need for separate transformation configuration.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience DevOps teams looking for a JavaScript testing framework	Audience Developers seeking to run fast unit tests with Vite-native tooling, Jest-compatible APIs, and integrated modern web development workflows
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing No information available. Free Version Not Supported Free Trial Not Supported	Pricing Free Free Version Supported Free Trial Not Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software

Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information Jest United States jestjs.io	Company Information Vitest United States vitest.dev/
Alternatives Cucumber SmartBear	Alternatives No Alternatives
Cypress Cypress.io
JUnit
Early EarlyAI
Qualflare View All	View All
Categories Development Frameworks Supported Software Testing Supported Unit Testing Supported	Categories Software Testing Supported

Integrations Anon Supported CI Fuzz Supported Early Supported Istanbul Supported JHipster Supported JavaScript Not Supported Launchable Supported Modern MERN Supported Nextless.js Supported Nodewood Supported Nx Supported Pythagora Supported Testmo Supported TypeScript Not Supported UI Verify Not Supported Vercel Not Supported Vite Not Supported ZippyStarter Supported Zunoy MockAPI Supported Show More Integrations View All 23 Integrations	Integrations Anon Not Supported CI Fuzz Not Supported Early Not Supported Istanbul Not Supported JHipster Not Supported JavaScript Supported Launchable Not Supported Modern MERN Not Supported Nextless.js Not Supported Nodewood Not Supported Nx Not Supported Pythagora Not Supported Testmo Not Supported TypeScript Supported UI Verify Supported Vercel Supported Vite Supported ZippyStarter Not Supported Zunoy MockAPI Not Supported Show More Integrations View All 7 Integrations
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