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. 126.7M 17.3 kB ACTIVE vitest Next generation testing framework powered by Vite 111.4M 103.6 kB ACTIVE playwright A high-level API to automate web browsers 104.1M 934.0 kB ACTIVE @testing-library/react Simple and complete React DOM testing utilities that encourage good testing practices. 62.2M 100.5 kB ACTIVE fast-check Property based testing framework for JavaScript (like QuickCheck) 48.1M 58.8 kB ACTIVE jest Delightful JavaScript Testing. 46.0M 36.3 MB STALE mocha Classic, reliable, trusted test framework for Node.js and the browser 13.3M 32.0 kB ACTIVE cypress Cypress is a next generation front end testing tool built for the modern web 6.0M 178 B ACTIVE jasmine-core Simple JavaScript testing framework for browsers and node.js 5.1M 33.3 kB ACTIVE selenium-webdriver The official WebDriver JavaScript bindings from the Selenium project 1.8M 85.2 kB ACTIVE ava Node.js test runner that lets you develop with confidence. 456.2K 411 B ACTIVE nightwatch Easy to use Node.js based end-to-end testing solution for web applications using the W3C WebDriver API. 103.8K 58.1 MB ACTIVE

COMPARISONS 66

playwright vs selenium-webdriver ★ 131.5K · 106.0M/wk ava vs vitest ★ 38.0K · 111.8M/wk @testing-library/react vs nightwatch ★ 31.6K · 62.3M/wk ava vs nightwatch ★ 32.8K · 560.0K/wk cypress vs playwright ★ 148.0K · 110.1M/wk @testing-library/react vs fast-check ★ 24.8K · 110.3M/wk chai vs nightwatch ★ 20.2K · 126.8M/wk fast-check vs jasmine-core ★ 21.0K · 53.2M/wk jest vs mocha ★ 68.3K · 59.3M/wk playwright vs vitest ★ 114.2K · 215.5M/wk cypress vs nightwatch ★ 63.0K · 6.1M/wk mocha vs vitest ★ 40.1K · 124.7M/wk @testing-library/react vs jest ★ 65.1K · 108.2M/wk nightwatch vs playwright ★ 108.9K · 104.2M/wk mocha vs nightwatch ★ 34.8K · 13.4M/wk chai vs jest ★ 53.7K · 172.7M/wk fast-check vs mocha ★ 28.1K · 61.4M/wk chai vs jasmine-core ★ 24.1K · 131.8M/wk jest vs vitest ★ 62.6K · 157.4M/wk @testing-library/react vs vitest ★ 36.8K · 173.6M/wk fast-check vs jest ★ 50.6K · 94.1M/wk mocha vs playwright ★ 119.9K · 117.4M/wk fast-check vs nightwatch ★ 17.1K · 48.2M/wk @testing-library/react vs playwright ★ 116.6K · 166.4M/wk cypress vs jest ★ 96.5K · 52.0M/wk fast-check vs selenium-webdriver ★ 39.7K · 49.9M/wk jasmine-core vs playwright ★ 112.8K · 109.3M/wk @testing-library/react vs mocha ★ 42.5K · 75.5M/wk jasmine-core vs selenium-webdriver ★ 50.3K · 6.9M/wk fast-check vs vitest ★ 22.3K · 159.4M/wk jest vs nightwatch ★ 57.4K · 46.1M/wk @testing-library/react vs cypress ★ 70.7K · 68.2M/wk ava vs chai ★ 29.1K · 127.1M/wk cypress vs selenium-webdriver ★ 85.6K · 7.8M/wk ava vs playwright ★ 117.8K · 104.6M/wk jasmine-core vs nightwatch ★ 27.8K · 5.2M/wk @testing-library/react vs chai ★ 27.9K · 188.9M/wk chai vs playwright ★ 105.3K · 230.8M/wk fast-check vs playwright ★ 102.2K · 152.2M/wk chai vs fast-check ★ 13.4K · 174.7M/wk jest vs selenium-webdriver ★ 80.0K · 47.8M/wk jest vs playwright ★ 142.5K · 150.1M/wk @testing-library/react vs ava ★ 40.5K · 62.7M/wk jasmine-core vs mocha ★ 38.7K · 18.4M/wk mocha vs selenium-webdriver ★ 57.4K · 15.1M/wk @testing-library/react vs jasmine-core ★ 35.5K · 67.4M/wk ava vs cypress ★ 71.9K · 6.4M/wk cypress vs fast-check ★ 56.2K · 54.0M/wk ava vs jasmine-core ★ 36.6K · 5.6M/wk ava vs jest ★ 66.3K · 46.5M/wk cypress vs vitest ★ 68.2K · 117.3M/wk cypress vs mocha ★ 73.9K · 19.3M/wk selenium-webdriver vs vitest ★ 51.7K · 113.2M/wk ava vs fast-check ★ 26.0K · 48.5M/wk @testing-library/react vs selenium-webdriver ★ 54.2K · 64.1M/wk chai vs selenium-webdriver ★ 42.8K · 128.5M/wk ava vs mocha ★ 43.7K · 13.8M/wk ava vs selenium-webdriver ★ 55.3K · 2.3M/wk chai vs cypress ★ 59.3K · 132.6M/wk jasmine-core vs jest ★ 61.3K · 51.1M/wk nightwatch vs selenium-webdriver ★ 46.5K · 1.9M/wk jasmine-core vs vitest ★ 33.0K · 116.5M/wk cypress vs jasmine-core ★ 66.9K · 11.1M/wk chai vs vitest ★ 25.4K · 238.1M/wk nightwatch vs vitest ★ 29.1K · 111.5M/wk chai vs mocha ★ 31.2K · 140.0M/wk

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