The best Software Testing tools and resources on the internet.

A simple Node.js Gmail client which checks the inbox for message existence

Advanced code management platform for Python

Mobile app for iOS and Android for testing and using APIs.

Learn how to catch bugs and break software as you discover different testing methods that will help you build better software.

Create mock APIs in seconds

A diagnostic CSS snippet that exposes potential performance issues in your page’s `head` element.

Find and fix your site’s broken links

A small and simple library for stubbing and spying on methods and functions in JavaScript tests.

A quick way to disable/enable JavaScript in the browser.

Learn everything there is to know about REST apis with the this opensource resource.

Easy web performance trace sharing

A kotlin-first tool to intercept android network calls, modify requests/responses and mock entire APIs.

A .NET library for Basic Assertions

Simplify API Testing with Mock Data

This simple yet effective tool helps you compare two texts, and reveals the similarities and differences.

An LLM playground you can run on your laptop.

An extension to the standard windows clipboard.

Accessibility Insights for Web helps developers quickly find and fix accessibility issues.

Supports editing text and images in a PDF across all platforms.

A revolutionary open source software that allows you to easily automate tasks.

Automation of GUI components with mouse and keyboard actions.

Mariana Trench is a security focused static analysis platform targeting Android.

Generate unit tests and iterates on code until the tests pass

The most powerful screen recorder & annotation tool for Chrome 🎥

Generate realistic test data with simple yet powerful syntax.

All the Fake Data for All Your Real Needs

Offline-first web HTTP client

The easiest way to identify fonts on web pages.

Your 100% static dynamic backend.

Smartphone and tablet simulator to test your mobile site on various devices.