The best Software Testing tools and resources on the internet.

Test While Developing (TWD) - in-browser testing for React, Vue, Angular, and Solid.js applications

It’s a free and open source interactive HTTPS proxy

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

Get faster access to Android device accessibility features.

🧪 Run common networking tests against your site.

In-memory Postgres for unit/E2E tests

Test sites on multiple devices in one tab. Improve development, UI/UX, & QA with live previews.

An online JSON viewer that lets you minify, beautify, and load JSON from a file.

Lint an npm or Yarn lockfile to analyze and detect security issues via predefined security policies.

Manage your npm packages directly from the VS code editor.

Universal adapter for interacting with any validation schema.

open-source load testing tool, using Go and JavaScript

Test for accessibility for people who have limited or no use of their hands

Auto-load your database and displays the data right inside VS Code

Capture logs on Android devices.

Web vulnerability scanner written in Python3

Performance comparison of Javascript rendering/game engines.

🎨 Regex visualizer & editor

Your shell history: synced, queryable, and in context

A free online collaborative whiteboard app

SQL like language to perform queries on .git files.

Clean Code starts in your IDE

A flaky network simulator for your mobile app

32 production-grade QA workflow skills for Claude Code — from spec to release.

A flexible web-based editor, converter, visualization tool, for geospatial data.

Mock API by intercepting requests on the network level. Seamlessly reuse the same mock definition for testing, development, and debugging.

ConEmu starts a console program in a hidden console window, and provides an alternative customizable GUI window with various features

The easiest way to identify fonts on web pages.

one-stop resource with tons of little utilities for formatting, editing, generating, minifying, and so on.

🍵 iOS UI Automation Test Framework