
Description: Advanced REST Client is an open-source API testing tool for developers. It allows making HTTP requests, inspecting responses, and testing REST and SOAP web services. It can export environments, save history, and authenticate requests.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Thunder Client is an open-source desktop application for making API requests. It provides an intuitive interface for constructing requests, viewing responses, and managing collections of APIs. Useful for testing APIs during development or accessing them in a desktop app.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API