The best Software Testing tools and resources on the internet.

Performance comparison of Javascript rendering/game engines.

A revolutionary open source software that allows you to easily automate tasks.

FREE API for generating placeholder user information. Get profile photos, names, and more. It's like Lorem Ipsum, for people.

Manage your npm packages directly from the VS code editor.

Operatng System

Pretty fancy and modern terminal file manager.

A flexible, lightweight JSON Data validator and formatter

Apple’s official testing framework for unit tests.

Immediately check one or one hundred PDF files for signs of inaccessibility

This is an interactive book which aims to be the best place on the internet for learning SQL.

A beautiful JSON explorer packed with features

Open Source File synchronization

Real-time Python regular expression editor

over 80–100 fully free, online tools for developers, designers, covering coding, design, graphics, text editing, image, network, cryptography and more..

Execute any JavaScript on any open browser tab.

Free code coverage library for Java

Automatically generates OpenAPI specifications in real-time.

Intelligent Test Automation

Write clean, maintainable unit tests with minimal boilerplate with Java

Generate a visualization of your JSON, XML, CSV, YAML, SVG, .INI, serialized, hex, base64, or binary data local only, and share data via a URL

A high-performance HTTP benchmarking tool with real-time web UI and terminal displaying

Next-Generation UI Testing Library

This tool runs a Lighthouse performance test at a range of different network speeds.

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

Powerful friendly WebRTC mock peer & proxy

Testing and validating REST services the easy way.

Run SQL queries on CSV files directly in your browser. No data leaves your browser. Fast, private, and easy to use.

a Ruby regular expression editor

Observable Integration Testing using OpenTelemetry on top of Jest/Playwright/Cypress.

Get a better understanding of your application performance and behavior with the debugbar.