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

It’s a disposable email platform made for QA and test automation. You get private, isolated inboxes that behave like real ones — but are built for fast, repeatable, testable flows.

ReadyAPI is a low-code API testing platform for development teams that care about creating test automation across any workflow.

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

Browser and Mobile Automation Test Framework for Node.js

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