
Description: Stubby is an open source tool for testing and mocking HTTP and HTTPS services. It allows developers to simulate APIs and services during development without needing real endpoints. Stubby is lightweight, easy to use, and can handle advanced scenarios like OAuth authentication.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: AdGuard DNS is a free alternative to paid ad blocking services. It uses DNS filtering to block ads and tracking on devices and networks. Easy to set up with no downloads required.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API