The best Software Testing tools and resources on the internet.

Help companies solve the high availability problems in the process of migrating to cloud-native systems through chaos engineering️

LINQPad is a software utility targeted at .NET Framework development.

Mock API by intercepting requests on the network level. Seamlessly reuse the same mock definition for testing, development, and debugging.

Display the page's content in JSON format.

Reclaim tens of gigabytes of your storage used for various Xcode caches

Build your own cloud testing infrastructure.

🧪 Run common networking tests against your site.

Receive SMS Online - 100% Free

Browser MCP connects AI applications to your browser so you can automate tasks using AI. Supported by Claude, Cursor, VS Code, Windsurf, and more.

Check the contrast between different colour combinations against WCAG standards.

AI-powered JMeter script generator and performance analyzer from Swagger/OpenAPI or plain English, with automated bottleneck insights and PDF reporting.

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

Edit and debug on any OS

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

API Testing Tool

A zero-dependency email sending module for Node.js applications.

Web CSV Generator is a web-based random CSV data generator written in JavaScript. It allows to generate CSV files.

Capture DOM elements with full context for AI debugging and analysis

Convert curl commands to Python, JavaScript, PHP and much more...

An easy-to-use automation testing framework for mobile apps.

finds bugs in your shell scripts.

Offline-first web HTTP client

Browser driver API

A open-source menu bar application for creating screen and camera timelapses without excessive file sizes.

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

Test your responsive designs on multiple devices at once.

A command line search tool.

Tools for Windows users with dual or multiple monitor setups.

Use drag and drop to create dummy images of any size! Fastest way to generate placeholder images with specific dimensions.

online tool that you can use to check any website’s header status.