Mock and modify HTTP request for exploratory testing.

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

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.

Design, debug, and test APIs locally or in the cloud

Built for developers and testers alike, SoapUI is the only open source tool that covers the entire testing spectrum (functional, security, load, mocking).

Bugs. Happen. Debugging and Troubleshooting Reimagined