NUnit is a unit-testing framework for all .Net languages.

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

Healenium is an open-source library for automated testing that uses machine learning to improve the reliability of your tests. It can automatically detect and heal test failures caused by changes in the UI, such as element IDs or class names.

Code, test, and deploy synthetic monitoring at scale.

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.

Automation Test Reporting. OSS, Language & Framework agnostic