Testing & QA
Self-improving agentic QA test harness with memory for web and mobile applications, supporting natural language tests and self-healing execution.
Load testing, scalable Playwright E2E testing, and production monitoring toolkit for web applications and APIs.
Web-based tool to explore the abstract syntax trees of source code parsed by various community parsers.
High-performance formatter and linter for JavaScript, TypeScript, JSON, HTML, CSS, and GraphQL designed to replace tools like Prettier and ESLint.
A developer-focused browser for cross-device testing, responsive design, and real-time debugging of web applications.
Interactive cross-browser testing platform providing live access to real desktop and mobile browsers in virtual machines.
Cloud-based testing platform for web and mobile applications, providing access to real browsers and devices for manual and automated testing.
A comprehensive collection of UX, UI, and web design checklists, best practices, and component guidelines for designers.
Visualize code architecture by scanning local files via WebAssembly or connecting to a local CLI index.
AI-powered code review tool that integrates with GitHub and IDEs to identify bugs, enforce coding standards, and automate technical debt fixes.
End-to-end and component testing framework for modern web applications that runs directly in the browser.
An AI-powered GitHub agent that automatically scans repositories to update documentation whenever code changes.
An open-source load testing tool designed for engineering teams to test system scalability, performance, and reliability.
A JavaScript testing framework designed for simplicity, featuring zero-config setup, snapshot testing, and parallel test execution.
Automated open-source tool for improving the quality of web pages with audits for performance, accessibility, SEO, and progressive web apps.
Zero-configuration graphical user interface for the Jest testing framework.
A feature-rich JavaScript test framework running on Node.js and in the browser, making asynchronous testing simple and fun.
API mocking library for JavaScript using Service Workers to intercept REST and GraphQL requests for testing and development.
Cloud-based mobile app testing platform for Android and iOS, featuring browser-based emulators, simulators, and AI-driven test automation.
A comprehensive contract testing platform supporting consumer-driven and bi-directional contract testing for distributed microservice systems.
AI-powered mobile and web app testing platform providing access to real device and browser clouds for test automation and performance monitoring.
Automated visual testing and regression platform to detect UI changes and bugs across web applications and component libraries.
End-to-end testing and browser automation framework for modern web applications across Chromium, Firefox, and WebKit.
AI-powered code review tool that analyzes codebases to identify bugs, breaking changes, and edge cases before deployment.
A developer tool that displays web pages across multiple devices simultaneously for responsive testing and layout verification.
Selenium is a browser automation suite for testing web applications, with WebDriver for scripted tests and Grid for running them at scale.
AppSec platform for SAST, SCA, and secrets detection combining rule-based analysis and AI reasoning.
A specialized browser for web developers featuring simultaneous multi-device testing, synchronized interactions, and responsive CSS debugging tools.
Developer security platform for finding and fixing vulnerabilities in code, open source dependencies, containers, and cloud infrastructure.
Developer security platform that blocks malicious open-source packages and supply chain attacks across npm, PyPI, and other registries.
An open source library for running throwaway, lightweight instances of databases, message brokers, and other dependencies in Docker containers for tests.
AI-powered end-to-end testing platform that runs pull requests in desktop sandboxes, finds bugs, and generates regression tests automatically.
Comprehensive course on testing JavaScript applications, covering unit, integration, and end-to-end testing strategies using tools like Jest and Cypress.
A family of lightweight utilities for testing UI components without focusing on implementation details, prioritizing user-centric selectors.
Interactive web application providing a controlled environment to practice and learn robust element querying methods for automated software testing.
Run automated, manual, visual and AI-assisted tests on 6100+ real browsers and physical mobile devices with parallel execution and CI/CD integration.
Codeless test automation tool for web, mobile, database, and API testing with record and playback, Selenium migration, and CI/CD integration.
An AI-native quality engineering platform providing autonomous testing agents, cloud-based test execution, and real device access for web and mobile.
Agentic testing and automation platform that automatically generates and runs end-to-end tests for your live web application.
Free online HTML validator and checker running against the HTML5 standard. Checks code or URLs for errors, accessibility issues, and best practices.
AI-powered user testing and simulation plugin for Figma prototypes providing UX performance metrics, heat maps, and accessibility reviews.
A Vite-native fast testing framework offering Jest-compatible APIs and out-of-the-box support for ESM, TypeScript, and JSX.
Continuous JavaScript and TypeScript test runner providing real-time feedback, code coverage, and time-travel debugging directly inside your IDE.
Suite of evaluation tools that helps authors make web content more accessible to individuals with disabilities and identify WCAG errors.
A comprehensive checklist and guide outlining essential items, steps, and technical details to include when creating effective software bug reports.
Native test management application built inside Jira for software quality assurance, test case design, and automation execution tracking.
Zed Attack Proxy is a widely used open source web application security scanner for finding vulnerabilities in web applications.
Zyntra provides temporary and permanent test mailboxes for automated and manual QA, enabling API-based retrieval of OTPs and confirmation links.