CATEGORY

Best Testing Libraries

Testing packages facilitate the verification of JavaScript code quality and functionality. Approaches range from behavior-driven development with libraries like Chai and Jasmine to robust end-to-end testing frameworks such as Playwright, Selenium WebDriver, and Cypress. Others focus on component testing or utilize Jest and Vitest for rapid test execution and assertion capabilities, reflecting a mature ecosystem with widespread adoption.

12 packages · sorted by weekly downloads

PACKAGES 12

Package DL / week Bundle Status

chai BDD/TDD assertion library for node.js and the browser. Test framework agnostic. 38.8M 17.2 kB ACTIVE vitest Next generation testing framework powered by Vite 33.1M 81.8 kB ACTIVE playwright A high-level API to automate web browsers 29.2M 17.4 MB ACTIVE jest Delightful JavaScript Testing. 21.7M 30.5 MB ACTIVE @testing-library/react Simple and complete React DOM testing utilities that encourage good testing practices. 21.3M 101.4 kB ACTIVE fast-check Property based testing framework for JavaScript (like QuickCheck) 11.2M 56.7 kB ACTIVE mocha simple, flexible, fun test framework 6.7M 87.0 kB ACTIVE cypress Cypress is a next generation front end testing tool built for the modern web 3.4M 184 B ACTIVE jasmine-core Simple JavaScript testing framework for browsers and node.js 2.6M 33.8 kB ACTIVE selenium-webdriver The official WebDriver JavaScript bindings from the Selenium project 933.9K 122.6 kB ACTIVE ava Node.js test runner that lets you develop with confidence. 288.3K 411 B ACTIVE nightwatch Easy to use Node.js based end-to-end testing solution for web applications using the W3C WebDriver API. 56.7K 58.1 MB ACTIVE

COMPARISONS 66

ava vs cypress ★ 70.5K · 3.7M/wk @testing-library/react vs ava ★ 40.5K · 21.6M/wk chai vs mocha ★ 31.2K · 45.4M/wk chai vs playwright ★ 98.6K · 68.0M/wk @testing-library/react vs nightwatch ★ 31.6K · 21.3M/wk selenium-webdriver vs vitest ★ 50.8K · 34.0M/wk playwright vs vitest ★ 107.0K · 62.3M/wk ava vs nightwatch ★ 32.8K · 345.1K/wk jasmine-core vs playwright ★ 106.2K · 31.8M/wk playwright vs selenium-webdriver ★ 124.5K · 30.2M/wk cypress vs vitest ★ 66.3K · 36.5M/wk @testing-library/react vs fast-check ★ 24.6K · 32.5M/wk @testing-library/react vs jasmine-core ★ 35.4K · 23.8M/wk @testing-library/react vs chai ★ 27.9K · 60.1M/wk chai vs nightwatch ★ 20.2K · 38.8M/wk jest vs playwright ★ 135.8K · 50.9M/wk nightwatch vs selenium-webdriver ★ 46.1K · 990.6K/wk @testing-library/react vs jest ★ 65.0K · 42.9M/wk @testing-library/react vs playwright ★ 110.0K · 50.5M/wk cypress vs nightwatch ★ 61.6K · 3.4M/wk nightwatch vs playwright ★ 102.3K · 29.3M/wk fast-check vs nightwatch ★ 17.0K · 11.3M/wk chai vs jasmine-core ★ 24.1K · 41.3M/wk cypress vs playwright ★ 140.1K · 32.6M/wk chai vs vitest ★ 24.9K · 71.8M/wk cypress vs jasmine-core ★ 65.5K · 5.9M/wk cypress vs jest ★ 95.1K · 25.0M/wk mocha vs vitest ★ 39.5K · 39.7M/wk chai vs selenium-webdriver ★ 42.4K · 39.7M/wk chai vs cypress ★ 57.9K · 42.2M/wk ava vs chai ★ 29.1K · 39.1M/wk @testing-library/react vs cypress ★ 69.3K · 24.7M/wk @testing-library/react vs mocha ★ 42.5K · 28.0M/wk cypress vs fast-check ★ 54.7K · 14.6M/wk jest vs nightwatch ★ 57.3K · 21.7M/wk ava vs playwright ★ 111.2K · 29.5M/wk fast-check vs vitest ★ 21.7K · 44.3M/wk jasmine-core vs nightwatch ★ 27.8K · 2.6M/wk ava vs jasmine-core ★ 36.7K · 2.8M/wk cypress vs selenium-webdriver ★ 83.8K · 4.3M/wk jasmine-core vs vitest ★ 32.5K · 35.6M/wk fast-check vs playwright ★ 95.4K · 40.5M/wk chai vs jest ★ 53.6K · 60.4M/wk ava vs jest ★ 66.2K · 21.9M/wk nightwatch vs vitest ★ 28.6K · 33.1M/wk mocha vs playwright ★ 113.3K · 35.9M/wk fast-check vs jest ★ 50.4K · 32.9M/wk mocha vs nightwatch ★ 34.8K · 6.7M/wk jasmine-core vs mocha ★ 38.7K · 9.2M/wk fast-check vs selenium-webdriver ★ 39.2K · 12.2M/wk chai vs fast-check ★ 13.3K · 50.0M/wk jest vs selenium-webdriver ★ 79.5K · 22.6M/wk @testing-library/react vs vitest ★ 36.2K · 54.4M/wk @testing-library/react vs selenium-webdriver ★ 53.8K · 22.2M/wk ava vs selenium-webdriver ★ 55.0K · 1.2M/wk cypress vs mocha ★ 72.6K · 10.1M/wk mocha vs selenium-webdriver ★ 57.1K · 7.6M/wk jest vs vitest ★ 62.0K · 54.7M/wk jasmine-core vs jest ★ 61.2K · 24.2M/wk fast-check vs jasmine-core ★ 20.8K · 13.8M/wk fast-check vs mocha ★ 27.9K · 17.9M/wk jest vs mocha ★ 68.3K · 28.3M/wk jasmine-core vs selenium-webdriver ★ 50.0K · 3.5M/wk ava vs mocha ★ 43.8K · 7.0M/wk ava vs vitest ★ 37.5K · 33.4M/wk ava vs fast-check ★ 25.9K · 11.5M/wk

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