RapidAPI for Mac is a full-featured HTTP client that lets you test and describe the APIs you build or consume. It has a beautiful native macOS interface to compose requests, inspect server responses, generate client code and export API definitions.

Great Expectations is the leading tool for validating, documenting, and profiling your data to maintain quality and improve communication between teams

Ensure compliance, save time and distribute test data effortlessly with DATPROF’s Test Data Management Platform.

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

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

AutoTestData is a single page web application to generate the Fake Test Data just in 3 simple steps. It is an absolutely free community product.