The best Software Testing tools and resources on the internet.

A flaky network simulator for your mobile app

pytest plugin for semantic LLM output testing — validate meaning, not just shape

Jubula Functional Testing Tool for desktop Java applications

Static code analyzer for Infrastructure as Code

An online tool to help you easily generate, test, and refine your regular expressions.

An nginx playground website created by Julia Evans where we can paste the nginx configuration and test it out.

Clean Code starts in your IDE

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

Citrus Integration Testing

Execute role based security tests on APIs

Search exclusively on forum websites.

Auto-transform JavaScript comments into Playwright steps

'Can I use' provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.

A tool to test web content for accessibility and 508 compliance.

open source software for better troubleshooting common problems that occurred in Java applications.

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

An extension to the standard windows clipboard.

A simple-yet-powerful API traffic viewer for Kubernetes.

REST & SOAP API Testing

The missing Chrome Devtools Element Selector

The easiest way to identify fonts on web pages.

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

Simplifying commonly used technical terms in Tech

A curated list of snippets to get Web Performance metrics to use in the browser console or as snippets on Chrome DevTools

Educating customers on web-accessibility overlays.

Enter a URL and this tool will tell you if the website is violating GDPR laws.

Fast Desktop Switching.

Simplify the formatting, validation, and visualization of JSON data

Observable Integration Testing using OpenTelemetry on top of Jest/Playwright/Cypress.

A note-taking chrome extension: taking notes on the web with their context.