The best Software Testing tools and resources on the internet.

A tool for generating customizable streaming data with support for various distributions and anomalies.

Skip YouTube Video Ads Faster

A Gorgeous HTML/CSS Reporter for Mocha.js

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

A Pastebin alternative

Check how well your Web Application Firewall (WAF) protects your product against common web attacks.

TextExpander lets you instantly insert snippets of text from a repository of emails, boilerplate and other content, as you type – using a quick search or abbreviation.

All the Fake Data for All Your Real Needs

The open source infrastructure as code tool. A fork of Terraform.

Make your website smaller and faster by minifying the JS & CSS code!

It's a cross-platform Node.js desktop automation framework.

Kubernetes-native framework for test definition and execution

A utility to help you write tests against structured configuration data

Utilities to customize Windows

A QA harness built for Claude Code providing end-to-end testing with screen recordings, console logs, network HARs, Playwright traces, and auto-generated replay scripts.

Simple JMeter performance tests API

Cyrilex is a regular expression tester and visualizer

Powerful and easy to use PDF tools made for you

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

Simulate common network problems like latency, bandwidth restrictions and more

Solutions to 80% of your daily git challenges

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

Fill test data using the right-click context menu to assist with exploratory testing.

Use Docker and Dockery Compose to test and find blind cross-site scripting vulnerabilities.

Most sophisticated code coverage tool for Java and Groovy.

An online tool to test responsive layouts that lets you view multiple device sizes simultaneously, just enter a URL to test.

Static AST checker for a11y rules on JSX elements.

Get performance and usage implications of custom fonts.

A curated list of Chaos Engineering resources.

A platform that interactively links resources together using connecting threats, weaknesses, standards, code samples, and test instructions.