
Description: Pixabay is a website offering an extensive library of free stock photos, illustrations, vectors and videos. All content on Pixabay can be used for commercial and noncommercial purposes for free, without attribution.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Ungraded is a free, open-source assessment platform designed for teachers. It allows educators to create and deliver tests, quizzes, assignments, and surveys seamlessly to their students.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API