Head-to-Head: Jest vs Vitest Analysis


v29.7.0(22 days ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 4Monthly npm downloads

Jest is a popular JavaScript testing framework that is widely used for unit testing, integration testing, and end-to-end testing. It is popular for its simplicity, ease of use, and flexibility. Jest comes with built-in support for various features such as test-driven development, mocking, and code coverage. Jest also has a powerful API that allows developers to customize and extend the framework as per their requirements.

Alternatives: mocha, jasmine, ava

Tags: javascripttestingframeworkunit-testingintegration-testingend-to-end-testingmockingcode-coverage


v0.34.6(5 days ago)

This package is actively maintained.Types definitions are bundled with the npm packageNumber of direct dependencies: 24Monthly npm downloads

A blazing fast unit test framework powered by Vite



Jest is extremely popular and widely used in the JavaScript community. It has a large user base and extensive community support. Vitest, on the other hand, is a relatively unknown package and does not have a significant following.

Features and Functionality

Jest is a powerful testing framework that offers a wide range of features such as test runners, assertion libraries, code coverage analysis, and mocking capabilities. It supports different types of testing, including unit tests, integration tests, and snapshot testing. Vitest, being an unknown package, doesn't have known features and functionality to compare.

Ease of Use

Jest is known for its ease of use and minimal setup. It provides a simple and intuitive API, making it beginner-friendly. It also comes with a built-in test runner, which makes running and organizing tests straightforward. Since Vitest is unknown, it is difficult to compare its ease of use to Jest.

Community and Support

Jest benefits from a large and active community. It has extensive documentation, numerous tutorials, and a wealth of resources available. The community provides constant updates, bug fixes, and new features. As for Vitest, being relatively unknown, it may lack a strong community and sufficient documentation.

Integration and Compatibility

Jest is widely adopted and works well with different JavaScript frameworks like React, Angular, and Vue. It also offers support for TypeScript and Babel. As Vitest is unknown, its compatibility and integration capabilities are uncertain.


Jest is known for its fast and efficient test execution. It has various optimization techniques, such as parallel test execution and selective test runs, which contribute to its performance. The performance of Vitest cannot be compared as it is an unknown package.