Gatling is a powerful open-source load testing solution that integrates with your development pipeline. It includes a web recorder and colorful reports.

A website for getting different information for colors (different formats, complementary color) , especial a color blindness simulator.

Checks web UI for browser compatibility (Compliance with Can I Use?)

Hoppscotch is an open-source API development ecosystem that helps you create and test your API requests saving precious time in development.

The world’s first API testing platform that auto-generates unit test cases with dependency mocks from API calls. Using advanced AI, it simplifies test creation, debugging, and evolution, ensuring comprehensive coverage and boosting software quality.

The WAVE Chrome, Firefox, and Edge extensions allows you to evaluate web content for accessibility issues directly within your browser.