The best Software Testing tools and resources on the internet.

Chrome extension that records your browser interactions and generates a Playwright or Puppeteer script.

All-in-one mobile application (Android/iOS/Windows) pen-testing, malware analysis and security assessment framework.

A browser extension that adds various web developer tools to a browser.

An CLI assistant that responds by generating and auto-executing a Python script.

new way for users to run elevated commands directly from an unelevated console session.

mock object testing framework that can be used to create stubs in iOS apps.

IDE

A Claude Skill to give your agent the ability to use a web browser

A test automation framework for Android devices.

State of the art mutation testing system, providing gold standard test coverage for Java and the jvm.

Commonly used software development and testing tools

`astro-font` will automatically optimize your Custom Fonts, Local Fonts, Fonts over any CDN and Google fonts for performance.

Differencing and merging tool for Windows

An all-in-one test automation solution

Open-source AI testing agent

An agentic QA tool for use in end to end QA processes, built as a multi-agent AI system that autonomously plans, writes, executes, and reports tests for REST APIs, web UIs, and Python codebases.

Free public API to test API endpoints and retrieve dummy JSON data swiftly.

A collection of utilities for Playwright tests at SEON Technologies, designed to make testing more efficient and maintainable.

A comprehensive evaluation framework for AI agents and LLM applications.

A dynamic, contamination-free benchmarking platform for evaluating Large Language Models (LLMs) on hard reasoning, math, and coding tasks.

Cross-Platform UI Automation Framework for Games and Apps

Healenium improves stability of Selenium-based test cases, handling changes of updated web elements.

Debug remotely and easily with a range of features like chrome devtool.

API Testing Tool

Cyrilex is a regular expression tester and visualizer

Check and suggests colors to meet the required WCAG or APCA contrast ratio.

A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows — particularly Claude Code

Dashboard/Report analyzer for load testing with JMeter

open source tests of web browser privacy.

An assertion library for Kotlin intended for use with a test runner such as JUnit, Minutest, Spek, or KotlinTest