Jest
Jest is a comprehensive JavaScript testing framework focused on simplicity and performance. It provides a complete toolkit including an assertion library, mocking capabilities, and built-in code coverage reporting. Designed to work out of the box with minimal configuration, it parallelizes test execution across processes to maximize speed. It supports snapshot testing for tracking large objects and offers a rich API for spying on function calls and mocking dependencies.
Checked on Sep 30, 2026.
Alternative resources
ZAP
Zed Attack Proxy is a widely used open source web application security scanner for finding vulnerabilities in web applications.
TestSprite
Agentic testing and automation platform that automatically generates and runs end-to-end tests for your live web application.
Testing Library
A family of lightweight utilities for testing UI components without focusing on implementation details, prioritizing user-centric selectors.