
Description: Piktab is a free and open source vector graphics editor focused on creating infographics and illustrations. It has an intuitive interface and is optimized for speed and simplicity.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Prototypr.io is a free online prototyping and mockup tool that allows users to quickly create wireframes, prototypes and mockups for web and mobile apps. It has drag-and-drop components, allows collaboration in real-time and exports clean, reusable code.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API