
Description: uiprint is an open-source platform that allows users to easily design, preview, and print UI components. It has an intuitive drag-and-drop interface to assemble components like text, images, shapes, and more. uiprint is good for rapidly prototyping and iterating on UI designs.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Smartmockups is a web-based tool that allows you to easily create realistic mockup designs and prototypes. It has a large library of device frames, scenes, and graphics that you can use to showcase your designs.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API