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

Loader.io is a free load testing service that allows you to stress test your web-apps & apis with thousands of concurrent connections.

Unifying API testing, API Performance testing, API Mocks and UI testing.

Render your Android screens without a physical device or emulator.

The Apache JMeter™ application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions.

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.