The best Software Testing tools and resources on the internet.

Differencing and merging tool for Windows

A utility to help you write tests against structured configuration data

Monitor, intercept, and debug JavaScript sinks.

#BDD

🍵 iOS UI Automation Test Framework

A privacy-friendly, open source journaling app for Mac.

🐨 Simple and complete CLI testing utilities that encourage good testing practices.

A better API testing tool

REST & SOAP API Testing

AI assisted Browser automation using Playwright that enables LLMs to interact with pages through structured accessibility snapshots, bypassing the need for screenshots.

Chrome and Firefox extension to discover problem areas in websites.

An open source web accessibility checker

Automatically mock your HTTP interactions to simplify and speed up testing

DenyHosts is a script intended to be run by Linux system administrators to help thwart SSH server attacks (also known as dictionary based attacks and brute force attacks).

An on-path blackbox network traffic security testing tool

Make Email Easier

A Java library for automating data setup in unit tests.

Elevate Your Maestro YAML Development in Visual Studio Code

Exploratory testing assistant for Chrome and Firefox

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

Explore a practice test site that has 25 real bugs planted inside.

A set of free tools that includes a responsive design tester, detect fonts, Chat with any PDF and more.

An open source, highly customizable, easy to use, privacy-respecting dashboard app.

A CLI tool that helps you avoid undefined user behaviour by validating your API specifications.

Online REST API client

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

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

UI automation library for .Net

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

Show multiple screens once, Responsive design tester.