The best Software Testing tools and resources on the internet.

Over 500+ awesome tools and resources on the internet to supercharge your testing.

Mariana Trench

Mariana Trench

Free

Mariana Trench is a security focused static analysis platform targeting Android.

Security Testing
Dia Diagram Editor

Dia Diagram Editor

Free

Free drawing software for Windows, Mac OS X, and Linux

Visual Modeling
Infinite Mac

Infinite Mac

Free

Run classic Macintosh operating systems (System 7, Mac OS 8, Mac OS 9) inside web browsers.

Mobile Testing
Microsoft Planner

Microsoft Planner

Paid

Microsoft

Task Management
T

Testcontainers

Free

An open source framework for providing throwaway, lightweight instances of databases, message brokers, web browsers, or just about anything that can run in a Docker container.

Automated Checking
CLI Testing Library

CLI Testing Library

Free

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

Automated Checking
ServerlessHorrors

ServerlessHorrors

Free

A collection of real-world serverless architecture failures, massive cloud bills, and architectural anti-patterns.

Learn Software Testing
A

Agentic Test Explorer

Open Source

An agnostic AI-driven exploratory test framework that intelligently explores, tests, and validates any application.

AI Testing
Tails

Tails

Free

Operating System

Security Testing
p

playwright-windows-wrapper

Open Source

Bridge Playwright web automation with Appium/WinAppDriver for native Windows desktop applications.

Automated Checking
Password Tech

Password Tech

Free

Password generator and password manager for Windows with full Unicode support.

DevTools
shottr

shottr

Free

Screenshot tool for Mac

DevTools
Cherrybomb

Cherrybomb

Free

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

Security Testing
WhatFont

WhatFont

Free

The easiest way to identify fonts on web pages.

Exploratory Testing
Cypress Intercept Search

Cypress Intercept Search

Free

A Cypress plugin that adds a custom command to search and assert values in intercepted requests and responses.

Automated Checking
Q

QASkills

Free

Install curated QA testing skills into Claude Code, Cursor, Copilot, and 30+ AI agents. One command, instant expertise.

AI Testing
Ghostlab

Ghostlab

Free

Test multiple browsers and devices at once

Exploratory Testing
S

SQLite Schema Diagram Generator

Free

Visualize yout DataBase in SQL Schema graph.

DevTools
sa11y

sa11y

Free

Salesforce Automated Accessibility Testing Libraries

Accessibility Testing
It Tools

It Tools

Free

Aggregated set of useful tools that every developer and tester may need once in a while.

DevTools
security.txt

security.txt

Free

Security standard

Security Testing
o

openplayground

Free

An LLM playground you can run on your laptop.

Automated Checking
XPathSense

XPathSense

Free

Smartly scan web pages and extract AI-enhanced XPaths for automation.

Automated Checking
F

Fetchbook

Free

CLI tool to run and test your HTTP requests. Git friendly, 100% local.

API Testing
J

Jira Capture

Paid

A visual feedback and testing tool.

Test Case Management
M

MockRTC

Free

Powerful friendly WebRTC mock peer & proxy

Traffic Listener
Swift Testing

Swift Testing

Free

A package with expressive and intuitive APIs that make testing your Swift code a breeze.

Automated Checking
Pee.js

Pee.js

Free

A javascript Library for leaking memory

Memory
A

Awesome Claude Skills

Free

A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows — particularly Claude Code

AI Testing
Automize

Automize

Free

The missing Chrome Devtools Element Selector

DevTools