Voiden is a developer-first API client with local storage, Git-integrated, all based on markdown + offline support.

Postman is an API platform for building and using APIs. Postman simplifies each step of the API lifecycle and streamlines collaboration so you can create better APIs—faster.

Hand-crafted lightweight Rest Client for testing APIs. Supports collections, environments, git collaboration and local storage.

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.

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

Playwright enables reliable end-to-end testing for modern web apps.