The best Software Testing tools and resources on the internet.

Performance and Infra testing

Find and fix your site’s broken links

A mutation testing tool for Python 3.3+ source code

free web app to perform functions like DNS lookups, port checks port scans, IP Information gathering, hash generation, blacklist checks, subnet calculation and more..

Learn SQL with simple, interactive exercises.

A diagnostic CSS snippet that exposes potential performance issues in your page’s `head` element.

A JavaScript library to perform OpenSSL RSA encryption, decryption, and key generation.

Automate web applications security assessments

Jubula Functional Testing Tool for desktop Java applications

An CLI assistant that responds by generating and auto-executing a Python script.

Regular Expression Visualization Site - Create a Diagrams from your regular expressions

Preview and test your website's Open Graph data

Advanced code management platform for Python

Visualize yout DataBase in SQL Schema graph.

ReqBin is an online API testing tool for REST and SOAP APIs.

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

use OS-level virtualization to deliver software in packages called containers

open source On-device debugger for Android applications

Chrome extension that records your browser interactions and generates a Playwright or Puppeteer script.

🍵 iOS UI Automation Test Framework

A high-performance load testing tool, written in Go.

Debug remotely and easily with a range of features like chrome devtool.

Mobile application automation framework

Check compliance with WCAG 2.0 minimum contrast

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

Automate the Windows GUI and general scripting

Brings the power of REST Assured to the C# / .NET ecosystem by Simplifying HTTP Testing

Chrome extension that generates API specs for any app or website

Light weight cross-platform test automation

A tool to optimize the unit testing process.