Bruno is a Fast and Git-Friendly Opensource API client, aimed at revolutionizing the status quo represented by Postman, Insomnia and similar tools out there.

HyperTest is a no-code test automation tool that regresses all your APIs by auto-generating integration tests using your network traffic, also giving a way to reproduce these failures inside actual user-journeys.

Jest is a delightful JavaScript Testing Framework with a focus on simplicity.

Requestly is an open-source tool that simplifies API development, testing, mocking, and integration for developers and QAs.

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.

Mockoon is the easiest and quickest way to design and run mock REST APIs.