A framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

Next generation testing framework powered by Vite.

A frontend workshop for building UI components and pages in isolation. Made for UI development, testing, and documentation.

Accessibility engine for automated Web UI testing

Mutation testing for JavaScript and friends

A browser automation framework and ecosystem.

Industry standard API mocking for JavaScript.

Runs automated accessibility tests on your pages via the command line or Node.js

A JavaScript implementation of a web browser without its graphical user interface

A framework for finding JavaScript memory leaks and analyzing heap snapshots

A very fast SIMD-first image comparison library (with nodejs API)

Property based testing framework for JavaScript (like QuickCheck) written in TypeScript

A JavaScript implementation of various web standards, for use with Node.js

Simple and complete React DOM testing utilities that encourage good testing practices.

Super-agent driven library for testing node.js HTTP servers using a fluent API. Maintained for @forwardemail, @ladjs, @spamscanner, @breejs, @cabinjs, and @lassjs.

fast HTTP/1.1 benchmarking tool written in Node.js

HTTP server mocking and expectations library for Node.js

JS version of Pact. Pact is a contract testing framework for HTTP APIs and non-HTTP asynchronous messaging systems.

Automates visual regression testing of your responsive web UI by comparing DOM screenshots over time

BDD testing with Playwright runner

The complete load testing platform. Everything you need for production-grade load tests. Serverless & distributed. Load test with Playwright. Load test HTTP APIs, GraphQL, WebSocket, and more. Use any Node.js module.

Cucumber for JavaScript

Gray box end-to-end testing and automation framework for mobile apps

Get a full fake REST API with zero coding in less than 30 seconds (seriously)

Performance testing companion for React and React Native

Everything You Need for Type Testing.

Guides, tools and libraries for modern web development.

Compile-time tests for types. Useful to make sure types don't regress into being overly-permissive as changes go in over time.

A cross-platform test runner that brings the JavaScript essence back to testing.

A unit testing framework for TypeScript backends working with inversion of control and dependency injection