Requestly is an open-source tool that simplifies API development, testing, mocking, and integration for developers and QAs.

Use Espresso to write concise, beautiful, and reliable Android UI tests.

Selenium automates browsers. That's it! What you do with that power is entirely up to you.

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.

API Testing Platform that automatically generates unit test cases with dependency mocks from API calls

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