Geany is a powerful, stable and lightweight programmer's text editor that provides tons of useful features without bogging down your workflow.

Open-source tests of web browser privacy.

Static AST checker for a11y rules on JSX elements.

⏰ 🔥 A TCP proxy to simulate network and system conditions for chaos and resiliency testing

Collect your thoughts and notes without leaving the command line.

schema builder and data validation and parsing

View git log, file history, compare branches or commits

Accessibility Checker for Developers, Testers, and Designers in Chrome

Regex101.com is an interactive regular expression console that lets you debug your expressions in real-time.

Creates easy to read HTML file from axe-core accessibility results object

A tool to calculate the contrast ratio between any two valid CSS colors.

Great tool for checking color contrast for both text and images of text.

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

Accessibility engine for automated Web UI testing

Simple JMeter performance tests API

Static analysis at ludicrous speed.

A Pastebin alternative

Open Source File synchronization

A debug bridge for Android applications.

This tool runs a Lighthouse performance test at a range of different network speeds.

A better API testing tool

This is an interactive book which aims to be the best place on the internet for learning SQL.

Pest is an elegant PHP Testing Framework with a focus on simplicity.

Show multiple screens once, Responsive design tester.

Learn SQL in a fun and gamified way.

CodeSandbox Black theme for VSCode.

Simple and Elegant Markdown Editor

A dark and colorful theme to rule them all

Free & Open Source REST API Testing Tool for all levels in a Test Pyramid

Manage and switch between multiple proxies quickly & easily.

Chrome and Firefox extension to discover problem areas in websites.

The optimal flow for Jest based testing in VS Code

A high-performance HTTP benchmarking tool with real-time web UI and terminal displaying

A tool for finding memory leaks in web apps

Intelligent Test Automation

Unified, cloud-based test automation platform, powered by AI

TestProject is the world's first 100% free test automation platform for Web, Android, iOS and API testing, trusted by over 150,000 users in the testing community.

A FREE xPath plugin to auto generate, write and verify xpath & cssSelector.

Learn software testing by focusing on simple exercises that take at most one hour to complete.

An open-source documentation about Android UI testing.

Apple’s official testing framework for unit tests.

Regular Expression Visualization Site - Create a Diagrams from your regular expressions

Distributed, offline-first bug tracker embedded in git, with bridges

Extends Selenium's Python bindings to give you the ability to inspect requests made by the browser.